14. For the compound represented by the Newman projection below, what is the dihedral angle between the methyl groups in the conformer that has the smallest molecular dipole moment? CI CI $0 H H3C H CH3 A) 0° B) 30° C) 60° D) 120° E) 180°

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I know that the answer to this question is 60, but I am struggling to understand why. Could somebody please draw this out for me 3-dimensionally or explain to me in detail why this is the case? One explanation I've heard is that it is because when the dihedral angle between the two methyl groups is 60, the molecular dipole moment between the two chlorine atoms is the smallest, therefore the answer is 60. This explanation is meaningless to me - that does not even seem to be what the question is asking. Is it a poorly-worded question?

i need good explanation

14. For the compound represented by the Newman projection below, what is the dihedral angle between the methyl
groups in the conformer that has the smallest molecular dipole moment?
H3C.
CI
CI
CH3
A) 0°
B) 30°
C) 60°
D) 120°
E) 180°
Transcribed Image Text:14. For the compound represented by the Newman projection below, what is the dihedral angle between the methyl groups in the conformer that has the smallest molecular dipole moment? H3C. CI CI CH3 A) 0° B) 30° C) 60° D) 120° E) 180°
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