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二联吡啶及其二氮取代衍生物电子性质和非线性光学性质的理论研究
Theoretical studies on electronic properties and nonlinear optical properties of bipyridine and their nitrogen substituted derivatives
【摘要】 采用量子化学PM3方法优化得到二联吡啶及四种二氮取代衍生物的稳定结构,利用ZINDO-SOS∥PM3方法对它们的二阶和三阶非线性光学性质进行计算.结果表明,该类化合物具有良好的非线性光学性质,其中1,6,1′,6′-四氮取代联苯的β值最大,为73 2082C·m,而2,4,2′,4′-四氮取代联苯的三阶非线性光学性质最显著.
【Abstract】 The stable geomteries of bipyridine and their nitrogen substituted derivatives were optimized by using quantum chemistry PM3 method.On the basis of their structures,the nonlinear optical coefficients were calculated by ZINDO/SOS method.The results showed that this kind of compounds have better nonlinear optical properties,and compound 5 has largest β value,73.208 2 C·m,,compound 3 has remarkable second hyperpolarizbility.
【关键词】 联吡啶;
PM3;
ZINDO-SOS;
NLO;
电子结构;
【Key words】 bipyridine; PM3; ZINDO-SOS; NLO; electronic structure;
【Key words】 bipyridine; PM3; ZINDO-SOS; NLO; electronic structure;
【基金】 国家自然科学基金资助项目(20243003);吉林省科技厅资助项目(2000551);教育部重点资助项目(01063)
- 【文献出处】 分子科学学报 ,Journal of Molecular Science , 编辑部邮箱 ,2004年01期
- 【分类号】O626
- 【被引频次】5
- 【下载频次】178