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Abstract:
在RHF/6-311G**、RHF/6-311+G**和B3LYP/6-311+G**水平,优化得到1,2-二硫方酸(3,4-二羟基-3-环丁烯-1,2-二硫酮)三种平面构象异构体的平衡几何构型.进一步用MP2(full)/6-311+G**∥RHF/6-311+G**方法计算三种异构体的单点能量,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,并用同键反应方法在同样水平计算其芳香性稳定化能.用基团加和法(groupincrementapproach)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).计算结果指出,标题化合物的键长发生了平均化,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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物理化学学报
ISSN: 1000-6818
CN: 11-1892/O6
Year: 2000
Issue: 1
Volume: 16
Page: 15-21
0 . 1 9 2
JCR@2000
1 0 . 8 0 0
JCR@2023
ESI Discipline: CHEMISTRY;
JCR Journal Grade:4
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SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 1
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