5.17 用HMO法计算三亚甲基甲烷(一种双自由基)-|||-H H-|||-C1^2-|||-H H-|||-C1 C3-|||-H H-|||-得到下列结果:-|||-_(4)=alpha -sqrt (3)beta , (varphi )_(4)=dfrac (1)(sqrt {6)}((phi )_(1)+(phi )_(2)+(phi )_(3)-sqrt (3)(phi )_(4))-|||-._(2)=(E)_(3)=alpha (varphi )_(2)=dfrac (1)(sqrt {2)}((varphi )_(1)-(varphi )_(3)) (varphi )_(3)=dfrac (1)(sqrt {6)}((varphi )_(1)-2(phi )_(2)+(phi )_(3))-|||-_(1)=alpha +sqrt (3)beta (varphi )_(1)=dfrac (1)(sqrt {6)}((phi )_(1)+(phi )_(2)+(phi )_(3)+sqrt (3)(phi )_(4))-|||-(1)画出轨道图形,观察轨道节面分布特点;-|||-(2)计算中心C原子的π键级时,只需要哪个或哪些大π分子轨道?为什么?计算π键级P14和中心C-|||-原子的π键级总和;-|||-(3)计算自由价F4。

6.写出下列反应的产物或所需的试剂或反应条件。-|||-(1) I H-|||-H-|||-H-|||-(2) 冷/稀KMnO4-|||-H-|||-(3) (

下列构象中最稳定的是 ()-|||-H CH3-|||-H3C H-|||-A-|||-H H-|||-H H-|||-H CH3-|||-H H-|||-B-

1.必答[单选题]-|||-(H)_(3)C(H)_(2) H-|||-H C=C H-|||-C=C-|||-CH3 CH3-|||-的名称-|||-

6.写出下列反应的产物或所需的试剂或反应条件。-|||-(1) HBr-|||-H-|||-H-|||-(2) 冷/稀KMnO4-|||-H-|||-(3) (

7.写出下列各化合物的费歇尔投影式。-|||-H3-|||-(1) O H-|||-_(3)C(H)_(2)C H-|||-_(3)C H Cl-|||-(2)

Br-|||-(1)-|||-Br H-|||-CH3-|||-CH2CH3-|||-H Cl-|||-(2)-|||-H H-|||-CH3-|||--C(H

_(2)/Pd(Cl)_(2)-Cu(Cl)_(2)-|||-_(3)C H-|||-(11)米 C=C ②NaHSO4-|||-① _(S)/(H)_(2)/

3-13 完成下列反应。-|||-(1) square -C(H)_(3)+H-|||-(2) -C(H)_(3)+(H)_(2)S(O)_(4)-|||-CH

A-|||-h-|||-h

Cl H3C Cl-|||-(3) (4) H3C 直-|||-CI CH3 H Cl-|||-H H-|||-(5)-|||-H3C C2H5-|||-(4)