Convert the following wedge-dash structure of 2-chloro-3-methylpentane to a Newman projection through the C2-C3 bond. Step 1. Draw two Newman projection templates. Draw two circles. Put a dot in the centre of each. These represent C-2. C-3 is hiding behind the circles. On one circle, draw a Y with the spokes radiating from the dot at 120° angles.Draw a template for a Newman projection. Step 5. Attach the groups to the carbons of your template. View the molecule from the upper right. The groups on #"C-3"# go on the front carbon atom. Put the #"CH(CH"_3)_2# group on the bottom. The two #"H"# atoms go on the other bonds. The groups on #"C-4"# go on the back carbon.Exercise 25.3.1 25.3. 1. Draw 'zigzag' structures (using the solid/dash wedge convention to show stereochemistry) for the four sugars in the figure below. Label all stereocenters R or S. Answer. 25.3: …How to draw Newman Projection? determine shape/find connectivity/right is wedge/dash is left. How to do resonance for newman projection? ... backbone made of chiral center's C/leftovers is tails and heads/first on bottom stays true to wedge and dash/pattern is flipped from there (wedge right and dash left for first, so now wedge is left and ...Step 1. To find- To convert the wedge form to Newman pro... Question 5 of 12 Translate the given conformer from the wedge-and-dash drawing into its Newman projection. You might find it helpful to make a model, then manipulate it to the desired viewpoint.Question: Translate the given theoretical conformer from the Newman projection to its wedge-and-dash drawing. You might find it helpful to make a model to help visualize the different viewpoints. Replace the hydrogen atoms with the appropriate atoms. Select Draw Rings More Erase // с H Br CI F O 1 F H ОН Br CH3 CI HNewman Projection Series: Video 1. This video explains conformational isomers and how to visualize and draw Newman Projections. Also discussed are …Sawhorse Projection to Fischer Projection. First, the staggered Sawhorse projection is converted to an eclipsed projection. It is then held in the vertical plane in such a manner that the two groups pointing upwards are away from the viewer, i.e. both these groups are shown on the vertical line. Such a conversion for 2,3-dibromobutane is shown.4. Putting It Together: The Mechanism Of The E2 Reaction. Here's a hypothesis for how this elimination reaction works. It accounts for all the bonds that form and break, as well as the rate law, and - crucially - the stereochemistry. In this mechanism, the base removes the proton from the alkyl halide that is oriented anti to the leaving ...A Newman projection for cyclohexane is two Newman projections joined together. For the chair form, view the diagram so that the carbon atom nearest to you ( C-6) is "up", C-2 is "behind" C-1, and C-4 is "behind" C-5. Draw side-by-side projections of the C1-C2 and C5-C4 bonds. Join the two diagrams with the front carbon ( C-6) at the top and the ...The Newman projection is obtained upon a 90° degree rotation of the dash-wedge structure. It is an end-on representation where the molecule is viewed along the bond of interest, a projected bond. The atom farther from the observer is represented by a circle, and the atom closer to the observer is denoted as the center of the circle.Step 1. The bond through which we are viewing appear... Which of the following is the correct wedge and dash conformation for the following Newman projection? CH3 H. H Br CH3 Br Br Br Br Br Br Br Br Br IV 1 II III V OT O II O III OIV OV Identify the correct chair conformations of the following compound and then indicate which one is more stable.Much like the Dash-Wedge representation, the Newman projection precludes that the spatial arrangement of atoms and molecules within the compound is dependent upon the specific bonds linking these groups and the relative position (i.e., bond angle) of these bonds in relation to the entire compound. In other words, as full rotation around the ...One is two draw the carbon chain in a regular zig-zag form and have the identical groups on the chiral carbon on opposite sides (wedge-dash): And the other is to draw the carbon chain with these two groups pointing to the same direction having either both wedge or both dash lines (which is the same molecule since it is a meso compound).Chemistry questions and answers. Draw the dash-wedge structure that corresponds to the Fischer projection. The generic structure has been given. Leave the OH where it is. Change three of the hydrogen atoms on the generic structure to CI, CH3, and CH3, so that it matches the Fischer projection. ㅎ IÓ F 1st attempt See Periodic Table D See Hint ...If we start at carbon one, we start up axial, so let's go ahead and put in the axial hydrogens on our Cyclohexane, on our chair conformation. So here is carbon one. We're gonna draw a line straight up and put in a hydrogen. We go to carbon two. We draw a line straight down and put in a hydrogen.Organic chemistry, stereochem- istry, conformational analysis, hands-on learning/manipula- tives, Newman projections. Method for the Drawing of Newman ...It is important to mention that a molecule can have multiple sawhorse and Newman projections because there are drawn based on the direction we are looking from. Therefore, there is no correlation as to a wedge group on the zig-zag is always on the right, or a dash group is on the left, etc. And this is a common confusion pattern when you are ...This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Question: Which of the following is the correct wedge and dash conformation for the following Newman projection? Et CH3 CH3 H H Et III IV II III IV OV. Here's the best way to solve it.Draw a wedge-dash projection of (2R, 2S)-dibromo butane. Draw anti conformations of the second C-C bond in 1-pentanol using Newman Projections, wedge and dash diagrams, or sawhorse diagrams. Draw the following structure, indicating the sterochemistry. 5-chloro-4-methyl-3-decene;This video covers the following topics: - Drawing the Newman Projection from a 3-dimensional molecule in which not all of the atoms are shown. - Comparing energies of the staggered conformations. - Comparing energies of the eclipsed conformations. - 60 degree rotations for a multi-substituted molecule.Exercise 25.2.1 25.2. 1. Draw 'zigzag' structures (using the solid/dash wedge convention to show stereochemistry) for the four sugars in the figure below. Label all stereocenters R or S. Answer. 25.2: Depicting Carbohydrate Stereochemistry - Fischer Projections is shared under a CC BY-SA 4.0 license and was authored, remixed, and/or curated by ...Convert each of the Newman projections into a solid/dashed wedge representation of the specific conformer. Use the given template where the front and back carbon must be converted as marked. ... Wedge-Dash Representation: ... Learn about Newman and Sawhorse projections. View examples including the Newman projection of butane. See how to draw ...Draw a Newman projection along the C2 - C3 bond of the following conformation of 2,3-dimethyl butane, and calculate the total strain energy. Draw a Newman projection of the most stable conformation of (2R, 3S)-dibromobutane sighting down the C2-C3 bond. Draw a wedge-dash projection of (2R, 2S)-dibromo butane.The wedge and dash representation can be drawn as a Newman projection. H de H H Alc H H H H The Newman on the left is staggered and on the right, eclipsed. Staggered is lower in energy than eclipsed. Shown are 3 conformers for the same molecule. a) Represent each as a Newman projection. b) Label each as staggered or eclipsed.Whether you’re a graphic designer, illustrator, or someone looking to explore the world of online design, Corel Draw is a powerful tool that can help you create stunning visuals. O...As mentioned earlier, for drawing a Newman projection of a molecule, the bond, and the viewer’s angle must be given. ... I took Orgo 1 last semester and still get confused with the wedge and dash and left and right in the …Wedge dash projection and Newman projection formula are the methods for representation three dimensional structure of molecule. Key words: Wedge dash structure, Newman projection. Newman Projection. It is a way of writing the structure of molecule which represents conformation of chemical bond. In this structure front carbon is denoted by dot ...Draw a template for a Newman projection. Step 5. Attach the groups to the carbons of your template. View the molecule from the upper right. The groups on #"C-3"# go on the front carbon atom. Put the #"CH(CH"_3)_2# group on the bottom. The two #"H"# atoms go on the other bonds. The groups on #"C-4"# go on the back carbon.A Fischer projection is always in the eclipsed conformation. To draw the sawhorse projection of an eclipsed conformation, start out by first drawing a line representing the carbon-carbon bond sloping upward and to the right (Pause the video as you trace these steps). Then draw one bond in front and one in back exactly straight down. Next, add ...One is two draw the carbon chain in a regular zig-zag form and have the identical groups on the chiral carbon on opposite sides (wedge-dash): And the other is to draw the carbon chain with these two groups pointing to the same direction having either both wedge or both dash lines (which is the same molecule since it is a meso compound).Step 1. A Newman projection is a way of representing the spatial arrangement of atoms in a molecule by looki... Sighting down the C-C bond indicated which Newman projection correctly represents the wedge and dash sawhorse exactly as shown without rotation? cl SIH CI H स H H 다. H H H CI C H 1) 2) 3) 5) HI H C2 H H H C2 ci N 4 3 O1 Which of ...A Web-Based Stereochemistry Tool to Improve Students' Ability to Draw Newman Projections and Chair Conformations and Assign R/S Labels Nimesh Mistry, Ravi Singh, and Jamie Ridley ... Method" is developed for the determination of absolute configuration of a chiral carbon in a Fisher Projection and Wedge-Dash Projection just by simple ...In order to draw a Newman projection from a wedge-dash diagram, it is useful to imagine putting your "eye" in line with the central bond in order to look along it. Let's work through an example, consider drawing a Newman projection by looking at the following wedge-dash diagram of propane from the left hand side.The figure below shows, as an example, a Newman projection looking down the C 2-C 3 bond of octane. Exercise . 1: Using free rotation around C-C single bonds, show that (R,S) and (S,R)-tartaric acid are identical molecules. 2: Draw a Newman projection, looking down the C 2-C 3 bond, of 1-butene in the conformation shown below (C 2 should be ...Feb 7, 2023 · This organic chemistry video tutorial explains how to convert a perspective formula into a Newman projection.Full 7 Hour Organic Chemistry Exam 1 Video: ... The Newman projection of a molecule is a superimposition of the two atoms on a single bond showing dihedral angles between the groups on the front and the back atom. In other words, I can show my sawhorse projections from above in the Newman projection form as such: The direction from which you're looking at your molecule is important for the ...Convert each of the Newman projections into a solid/dashed wedge representation of the specific conformer. Use the given template where the front and back carbon must be converted as marked. ... Wedge-Dash Representation: ... Learn about Newman and Sawhorse projections. View examples including the Newman projection of butane. See how to draw ...we will study basic details how to draw wedge-dash, sawhorse and newman projections for organic molecules. It is extremely helpful for II JEE Advanced / Main...Step1. Draw the bond-line structure of 3-methylhexan-3-ol. Step 2. Convert this to a wedge-dash structure. (a) Start by making the CH₃ bond a wedge and the OH bond a dash. We have a 50 % chance of getting it right. (b) Assign configurations. This is the R isomer. We got it right! Step 3. To convert this to a Fischer projection, draw a …Solution for Convert the following Newman projection into a dash-wedge 3-D drawing and convert the dash-wedge 3D drawing into a Newman projection. Start your trial now! First week only $4.99! learn. write. Essays; Topics; Writing Tool; plus. study resources. Subjects Literature ...Video transcript. - [Voiceover] Let's get some more practice with Newman projections. So, for this compound, we're gonna look down the c three c four bond and draw the most stable conformation. So let's start by numbering our carbons. This must be carbon one, two, three, four, five, and six, and if we look down the c three c four bond, that's ...3.2. 1. . Newman projection looks from front to back with the front atom represented as a dot with bonds originating from the dot and the back atom is represented as a wheel with bonds shown as lines originating from the wheel, as illustrated in Figure 3.2.1. 3.2. 1.Draw the dash-wedge structure that corresponds to the following Newman projection. This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts.Draw the resulting chair after it undergoes a chair flip. Do not use any implied hydrogens. 2 3 6 3. Draw a double barrel Newman projection from 1-2 and from 5-4. ОО Newman 1-2 5-4 4. Draw the compound in a flat-ring notation. Remember that "up" is shown with a wedge and "down" is shown with a dash. 1 2There are mainly four types of representations of organic molecules in three dimensions: Wedge Dash. Fischer Projection. Sawhorse. Newman Projection. Wedge Dash Representation. A Wedge Dash, the most popular three-dimensional depiction of a molecule on a two-dimensional surface is in projection (paper).Step1. Draw the bond-line structure of 3-methylhexan-3-ol. Step 2. Convert this to a wedge-dash structure. (a) Start by making the CH₃ bond a wedge and the OH bond a dash. We have a 50 % chance of getting it right. (b) Assign configurations. This is the R isomer. We got it right! Step 3. To convert this to a Fischer projection, draw a …Here is one important thing you need to remember when adding the hydrogens or other groups on the zig-zag of the main carbon skeleton. When the zig-zag angle is pointing up, you must point the wedge and dash groups up. When the angle is pointing down, you draw the wedge and dash group down as well: The same principle is applied to larger and ...You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Question: This is a Newman projection of a substituted cyclohexane. Draw the equivalent chair form. Draw the equivalent structure using wedge and dash notation on a cyclohexane hexagon Give the IUPAC name. There are 3 steps to solve this one.Here's the best way to solve it. Question 3. a) Draw the Newman projection of the following wedge-dashed diagram. Do not rotate around the sigma bond. Draw carbon 1 as the front carbon in the Newman projection as shown. 1 Mark b) For the second Newman projection, keep the orientation of the front carbon the same and rotate carbon 2 by 120∘ ...Convert the following wedge-dash structure of 2-chloro-3-methylpentane to a Newman projection through the C2-C3 bond. Step 1. Draw two Newman projection templates. Draw two circles. Put a dot in the centre of each. These represent C-2. C-3 is hiding behind the circles. On one circle, draw a Y with the spokes radiating from the dot at 120° angles.It is important to mention that a molecule can have multiple sawhorse and Newman projections because there are drawn based on the direction we are looking from. Therefore, there is no correlation as to a wedge group on the zig-zag is always on the right, or a dash group is on the left, etc. And this is a common confusion pattern when you are ...With Icelandair preparing to fly De Havilland Canada Dash 8s from Reykjavik to Manchester, we wanted to see what some of the other longest routes regularly served by the plane are....Wedge dash projection and Newman projection formula are the methods for representation three dimensional structure of molecule. Key words: Wedge dash structure, Newman projection. Newman Projection. It is a way of writing the structure of molecule which represents conformation of chemical bond. In this structure front carbon …3) (20 pts) (Part 1) Use the templates provided, draw bond line (zigzag) structure corresponding to the following Newman projection conformations and name the molecule. If chiral centers exist, make sure to draw wedges and dashes on chiral centers and assign the absolute configurations (R/S) on each chiral center and include them in your name.To make the Newman projection, it helps to progress to a Sawhorse projection, and that should help you see where you can go to condense the structure down into the Newman projection. 1) From the first, left structure, rotate the "C"_2-"C"_3 bond 60^@ counterclockwise with your right hand to achieve the staggered conformation.Draw the most energetic Newman Projection of CH 3 CH (C 6 H 5 )CH 3. Hint:Not all Newman Projections can form an anti, gauche and eclipsed conformation. If you have no clear large group on one side of the projection, you’ll just be stuck with projections called staggered (not overlapping) and eclipsed (overlapping).Jun 23, 2015 ... Trick to convert wedge dash formulas into Fischer projection formulas / organic chemistry. Komali Mam•195K views · 37:03. Go to channel ...How to go from bond line to Newman. Answer: You convert the bond-line structure to a wedge-dash structure Then you convert the wedge-dash structure to a Newman projection. So what we can do is draw the Newman projection of the molecule looking from the angle that places group 4 in the back (pointing away from the viewer) The lowest priority ...This video covers the following topics: – Drawing the Newman Projection from a 3-dimensional molecule in which not all of the atoms are shown. – Comparing energies of the staggered conformations. – Comparing energies of the eclipsed conformations. – 60 degree rotations for a multi-substituted molecule.Jun 21, 2022 ... In this video we go over drawing Newman Projections and staggered versus eclipsed conformations. We also learn how to figure out the highest ...Question: Draw a wedge and dash structure of the following Newman projection. Draw a wedge and dash structure of the following Newman projection. Show transcribed image text. Here's the best way to solve it. Who are the experts? Experts have been vetted by Chegg as specialists in this subject.Trick to convert wedge dash formulas into Fischer projection formulas / organic chemistryHow do you convert a newman projection into a wedge-dash molecule? This videos goes over that, and also discusses how to R/S the molecule.In order to draw a Newman projection from a wedge-dash diagram, it is useful to imagine putting your "eye" in line with the central bond in order to look along it. Let's work through an example, consider drawing a Newman projection by looking at the following wedge-dash diagram of propane from the left hand side. First draw the dot and circle ...The four possible combination are SS, RR, SR and RS (Figure 5.6.1). One of the molecule is the enantiomer of its mirror image molecule and diasteromer of each of the other two molecule (SS is enantiomer of RR and diasteromer of RS and SR). SS's mirror image is RR and they are not superimposable, so they are enantiomers.Sep 22, 2020 · About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ... 3.2. 1. . Newman projection looks from front to back with the front atom represented as a dot with bonds originating from the dot and the back atom is represented as a wheel with bonds shown as lines originating from the wheel, as illustrated in Figure 3.2.1. 3.2. 1.Jul 21, 2012 · How to convert a molecule drawn as a Newman projection into a line diagram.MOC members get access to over 1500 quizzes for your organic chemistry exam on Con... Wedge dash conversation into Fischer projectionFischer projection formulaFischer projectionFischer projection to wedge dashTricks to draw Fischer diagram fro...In this video, you will learn how to draw Newman projection of boat conformer of cyclohexane in the easiest way with 3D visualization.#NewmanProjectionOfBoat...With Icelandair preparing to fly De Havilland Canada Dash 8s from Reykjavik to Manchester, we wanted to see what some of the other longest routes regularly served by the plane are....Question: Draw the corresponding dash-wedge (sawhorse) structure for each of the following Newman projections. Dash wedge - newman projection. Show transcribed image text. There are 2 steps to solve this one. Expert-verified.In the field of architecture, precision and clarity are crucial elements for successful projects. One way to ensure that architects and other professionals in the industry can effe...Draw a wedge and dash projection of the following newman projection. Atoms on a dash point left; Draw the newman projection for the eclipsed form of propane. Remember, a wedge has a bond coming out at you in space or a bond coming out of the plane of the page. On one circle, draw a y with the spokes radiating from the dot at 120° angles.Chemistry. Chemistry questions and answers. Draw both chairs / dash-wedge / Newman Projection Week 4 Page 11 when drawing newman projections, indicate the bonds that you are representing with circles H FM å.Explain the Newman projection for cyclohexane. Define the term Fischer projection, and give an example. Translate the given theoretical conformer from the wedge-and-dash drawing into its Newman projection. Explain your answer. Explain how to draw a Fischer projection, and explain why Fisher projections were developed.Draw a Newman projection showing the lowest P.E. conformation of the following moleculesighting down the C2C3 bond (as indicated below). Show methyl and ethyl groups as Me and Et. starting from the wedge and dash structure below, rotate the back carbon to provide the newman projection in the least stable conformationDraw wedge-and-dash, sawhorse, and Newman projections for the lowest energy conformation of propane. There are 4 steps to solve this one.Draw a wedge and dash structure of the following Newman projection. Draw a dash-wedge structure for (R)-5-methylhept-2-yne. Draw the compound using double bond and triple bond: pentanal; Draw the product formed when the following compound undergoes an intramolecular Heck reaction. Indicate the stereochemistry at all double bonds and tetrahedral ...Solved Convert the Newman Projection to a wedge and dash. So i'm going to draw this exact thing, but with a newman projection, you draw the carbon molecules directly in front or directly behind each other. Put a dot in the centre of each. Web video on newman projections. How to draw newman structures 4.Nov 1, 2017 · Newman Projection Series: Video 1. This video explains conformational isomers and how to visualize and draw Newman Projections. Also discussed are staggered and eclipsed conformations, along with a potential energy diagram for the conformational isomers of ethane from 0 – 360 degrees. (Watch on YouTube: Newman Intro. Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/science/organic-chemistry/bond-line-... 712 views 3 years ago Organic Chemistry 1. Instructions on how to convert wedge/dash notation to a Newman projection, and how to interpret a Newman …Newman Projection. A Newman projection is a diagram used to depict a specific conformation of a molecule. eg. 1: Staggered conformation of ethane. To draw the staggered conformation of ethane as a Newman projection look at the molecule from the point shown above. The front carbon atom and the three carbon-hydrogen bonds originating from it are ...Here are the pictures of the eclipsed conformations from the video, and our goal is to pick the least stable, but just for practice, let's try drawing all of them as Newman projections. So we'll start with the one on the left here, and we're staring at C2, so that's C2, which we represent by a point.This is why the Newman projection is useful but it takes some getting used to. It is an odd point of view looking down the end of a bond, and so it is very easy to add or lose carbons. How to: In the Newman projection, we are looking down the bond between two adjacent atoms. We only draw the front atom. The second atom is obscured behind the first.If you’re considering designing your dream home or embarking on a home renovation project, one of the first steps is to create accurate house plans. Before diving into the world of...R and S configuration on Newman projections; Converting Bond-Line, Newman Projection, and Fischer Projections R and S when Atoms (groups) are the same. Sometimes it happens that two or more atoms connected to the chiral center are the same and it is not possible to assign the priorities right away. For example, let’s go back to the 2 ...
Consider the sugar below, one of several sugars in the antibiotic streptomycin. Draw in all of the hydrogens and label them as axial or equatorial. Reverse, reverse!Draw the molecule with traditional wedge/dash notation. Draw a Newman projection looking down the indicated bond. Practice self- care by abbreviating the ring when doing so.. Best zach bryan lyrics for captions
In a line drawing, this butterfly shape is usually shown from the side, with the near edges drawn using darker lines. ... Viewing a Newman projections of cyclopentane signed down one of the C-C bond show the staggered C-H bonds. Newman projection of cyclopentane. The angle strain in the envelope conformation of cyclopentane is low. The ideal ...3) (20 pts) (Part 1) Use the templates provided, draw bond line (zigzag) structure corresponding to the following Newman projection conformations and name the molecule. If chiral centers exist, make sure to draw wedges and dashes on chiral centers and assign the absolute configurations (R/S) on each chiral center and include them in your name.Jun 2, 2019 · How to find whether the two compounds are enantiomers or diasteromers? Diastereomers are stereoisomers that are not mirror images of one another and are non-superimposable on one another. $\ce{^1}$ This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Question: Which of the following is a Newman projection of the 2D wedge-dash structure shown below? ОН нус CH2CH, HT CH3 ОН H CH,CH, н НО, нус сн. CH, н Doch H сн, CH,CH нсн ныс Н -cн,сн, он.Draw a wedge and dash structure of the following Newman projection. Draw the structure of trans-2-phenyl-3-hexene. Draw the structure of 4-isopropyl-5-methyloctane.4. Putting It Together: The Mechanism Of The E2 Reaction. Here's a hypothesis for how this elimination reaction works. It accounts for all the bonds that form and break, as well as the rate law, and - crucially - the stereochemistry. In this mechanism, the base removes the proton from the alkyl halide that is oriented anti to the leaving ...How To Drawing Newman Projections From Wedge Dash. Draw two newman projection templates. This is an alternative to the 2d. Here, the molecule is observed at an oblique angle, and all the groups and bonds are visible to the observer. How to draw newman projections. Use the draw structure tool:.draw the wedge‑and‑broken‑line structure of a monosaccharide, given its Fischer projection or a molecular model. construct a molecular model of a monosaccharide, …Sep 21, 2021 · 532. 29K views 2 years ago. Are you learning Newman projections in your organic chemistry class? Wondering how to draw Newman projections from a bond line drawing/skeletal structure? Drawing... Here's how to convert the wedge-dash structures to Newman Projections. Staggered Ethane. Step 1. View the molecule along the C1-C2 axis with your eye at the left-hand end. The closest bonds make an inverted Y, so you will choose that template for your projection. Step 2. Place the groups onto your template. All groups on the carbon atoms are H ...Reading comprehension - ensure that you draw the most important information from the related lesson on sawhorse representations, Newman projections and wedge and dash modelsIn this video we go over drawing Newman Projections and staggered versus eclipsed conformations. We also learn how to figure out the highest and lowest energ...The purpose of the Newman projection is that it makes it easy to visualize conformations. (See post: Converting Newman to Line Diagrams) The original purpose of the Fischer projection was to provide a convention for easily depicting 3D molecules on a flat page, but this has largely been supplanted by the wedge and dash diagram. Although the ...Convert the following wedge-dash structure of 2-chloro-3-methylpentane to a Newman projection through the C2-C3 bond. Step 1. Draw two Newman projection templates. Draw two circles. Put a dot in the centre of each. These represent C-2. C-3 is hiding behind the circles. On one circle, draw a Y with the spokes radiating from the dot at 120° angles..