Consider the energy diagram showing the conformational analysis of propane and match the indicated position with the correct conformation below. CH3 H H na 0 dihedral angle energy 180 H CH3 HH H H || H H CH3 HH H ||| HCH3 H H IV 180 HCH3 H H V CH3

Complete the given chair conformation of cyclohexane by adding the listed substituents to the specified position and bond direction. Substituent Position Bond direction CH3 CH3 OH F 3 6 1 3 axial axial equatorial equatorial

What is the relationship between the two isomers shown below? H H CH3 CH3 CH3 H CH3 Constitutional isomers, also known as conformational isomers Conformational isomers, also known as geometric isomers Constitutional isomers, also known as structural isomers Conformational isomers, also known as structural isomers

Considering structures below, which of the following statements is true? O I H-C-O-CH₂ CH₂OH O || II HOCH₂CH₂-C-OH III HOCH₂CH₂-O-C-H A) I and II have different molecular formulas. B) I and III are structural isomers of each other. C) II and III are stereoisomers of each other. D) II and III are different conformations of the same compound. E) I and III are the same compound.

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.

4. Perform a conformational analysis on cyclohexane derivative I. Draw out both possible conformers and circle Using A, U, and G values estimate the energy difference (DG) the preferred (lowest energy) conformer between the two conformers and predict the approximate ratio of the two conformers at room temperature Hj C Br cyclohexane I

Identify the correct chair conformations of the following compound and then indicate which one is more stable. OH OH OH HO 1 || 4 OI and II are correct chair structures and I is most stable OI and II are correct chair structures and II is most stable OI and III are correct chair structures and III is most stable O II and III are correct chair structures and II is most stable O II and III are correct chair structures and III is most stable |||

Which of the following pairs of compounds are cis-trans isomers? O HC = C- CH3 and CH3 - C = CH O CH3, CH3 O CH3. CH3 O CH3, H O CH3, H C=C C=C C=C C=C Com CH3 CH3 H H H H CH3 H DESA and and and and H H H H H H c=c C=C₁ c=c CH₂ H CH3 CH₂CH3 CH3 H CH3 CH3 C=C H CH3

Starting from the wedge-and-dash structure below, rotate the back carbon to provide the Newman projection in the least stable conformation. HO H H H a