HI!!!!! 0° H €2H Looking at C1 with C2 behind C1, complete the Newman Projection diagrams. The angles are defined as the dihedral angle between C1-1 and C2-1. 60° H 120° 180° Complete the following potential energy diagram by plotting relative energy of each of the above Newman Projections is versus dihedral angle. The plot should show the correct relative order of the potential energy of each conformation.

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Organic Chemistry Мaxwell presented by Macmillan Learning Complete the most stable chair conformation of trans-1-tert-butyl-3-methylcyclohexane by filling in the missing atoms. Use the numbering provided on the ring. H Answer Bank 1 H. methyl tert-butyl H H H- 4 3 H H. CO 2.

1) For the molecules below draw a Newman projection looking down the indicated bond (1→2). Your Newman projection needs to be in the same conformation that shown in the structural formula. a) b) Br, 1 2 H H view HO view

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Convert the following structures into line structures (skeletal). Be sure to include correct stereochemistry. H₂C H₂C -CHICHI CH₂ Br H₂C H CH₂CH₂ H₂C H₂CH₂C CH₂ H CH₂CH₂ H Br H- CH₂ -H CH₂ CH₂CH₂ H CI -CI CH,CH.CH,

Assume that you have a variety of cyclohexanes substituted in the positions indicated. Identify the substituents as either axial or equatorial. For example, a 1,2-cis relationship means that one substituent must be axial and one equatorial, whereas a 1,2-trans relationship means that either both substituents are axial or both are equatorial. a) 1,4-cis-disubstituted b) 1,6-cis-disubstituted c) 1,2-cis-disubstituted Submit Answer Try Another Version 6 item attempts remaining optioins fill please both axial only both equatorial only both axial or both equatorial one axial-one equatorial

4 Practice 2 3-9 4.8 Conformational Analysis of Butane The graph below represents the relative energies of the conformations of butane: ww B Relative energy -1- —— 0° 60° 120° 180° 240° 300° 360° Angle of rotation Select the Newman projection that corresponds with position C on the graph (an angle of rotation of 120 degrees). HA 3 H I I I I # CH3 CH 3 CH 3 CH3 -I H HH CH3 CH3 CH3 80⁰0 CH3 H I I Н 4 000 000 % 6 MacBook Air 7 8 DIL FB 9 0

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