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Chp 3—Alkane structure & stereochemistry

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卡片总数: 10 张•内容版本: v4•公开卡包•更新时间: 8/1/2026

卡片预览 (10 张)

#1
正面 (问题)

alkane general formula

背面 (解答)

CnH2n+2

#2
正面 (问题)

alkane MP and BP affected by…

背面 (解答)

• size — larger molecule = higher BP, MP • surface area — more surface area = higher BP, MP • even/odd C number — even number = higher BP, MP

#3
正面 (问题)

Measure of plane angle between planes formed by 3 atoms in a conformer

背面 (解答)

dihedral angle φ

#4
正面 (问题)

eclipsed conformer

背面 (解答)

front and back atoms are aligned

#5
正面 (问题)

staggered conformer

背面 (解答)

front and back atoms are as far apart as possible

#6
正面 (问题)

staggered ethane dihedral angle =

背面 (解答)

60°

#7
正面 (问题)

angle/bayer strain

背面 (解答)

bond angle is forced to be less than the ideal tetrahedral bond angle

#8
正面 (问题)

energy of cyclohexane conformers in order

背面 (解答)

chair << twist boat << boat << half chair

#9
正面 (问题)

Can cis or trans decalin be chair-flipped?

背面 (解答)

Only cis

#10
正面 (问题)

背面 (解答)