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Abstract:
在RHF/6-311G** , RHF/6-311+G**和B3LYP/6-311+G**水平优化得到3,4-二硫方酸(3,4-二巯基-3-环丁烯-1,2-二酮)三种平面构象异构体的平衡几何构型. 用MP2(Full)/6-311+G**//RHF/6-311+G**方法计算单点能量, 发现ZZ型异构体是能量最低构象, 且ZZ和ZE型能量非常接近. 用优化的最稳定构象ZZ型异构体在RHF/6-311G**//RHF/6-311G**, RHF/6-311+G**//RHF/6-311+G**, MP2(Full)/6-311+G**//RHF/6-311+G**和B3LYP/6-311+G**//B3LYP/6-311+G**水平计算其气相酸性(ΔG0)和同键反应芳香性稳定化能(HASE). 用基团加和法(Group Increment Approach)在RHF/6-311+G**//RHF/6-311+G**和B3LYP/6-311+G**//B3LYP/6-311+G**水平计算其磁化率增量(Λ). 计算结果表明, 标题化合物的同键反应芳香性稳定化能和磁化率增量均为负值, 表明它具有芳香性, 实现了标题化合物芳香性的几何、能量和磁性的判定.
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高等学校化学学报
ISSN: 0251-0790
CN: 22-1131/O6
Year: 2000
Issue: 4
Volume: 21
Page: 596-600
0 . 5 9
JCR@2000
0 . 7 0 0
JCR@2023
ESI Discipline: CHEMISTRY;
JCR Journal Grade:3
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SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 3
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