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author:

周立新 (周立新.) [1] | 莽朝永 (莽朝永.) [2] | 章永凡 (章永凡.) [3] (Scholars:章永凡)

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PKU CSCD

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.

Keyword:

1,2-二硫方酸 从头算 密度泛函理论 气相酸性 芳香性

Community:

  • [ 1 ] [周立新]福州大学
  • [ 2 ] [莽朝永]福州大学
  • [ 3 ] [章永凡]福州大学

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Source :

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

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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