Molecular and crystal structures of a class of push-pull quinonoid compounds with potential nonlinear optical applications

被引：25

作者：

Ravi, M

Cohen, S

Agranat, I

Radhakrishnan, TP

机构：

[1] UNIV HYDERABAD,SCH CHEM,HYDERABAD 500046,ANDHRA PRADESH,INDIA

[2] HEBREW UNIV JERUSALEM,DEPT INORGAN CHEM,JERUSALEM,ISRAEL

[3] HEBREW UNIV JERUSALEM,DEPT ORGAN CHEM,JERUSALEM,ISRAEL

来源：

STRUCTURAL CHEMISTRY | 1996年 / 7卷 / 03期

关键词：

push-pull quinonoids; nonlinear optics; crystal structures; hyperpolarizability;

D O I：

10.1007/BF02281233

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Molecular and crystal structures of three compounds with electron donor-conjugation unit-electron acceptor framework are reported where the conjugation unit is formally a quinonoid ring. Semiempirical quantum chemical calculations indicate large hyperpolarizabilities in these push-pull molecules. Since all the crystal structures are found to belong to centrosymmetric space groups, modifications are necessary for quadratic nonlinear optical applications.

引用

页码：225 / 232

页数：8

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