Synthesis of calix[4]arene derivatives with NLO properties

被引:4
|
作者
Bai, Z [1 ]
Zhang, CZ [1 ]
Lu, GY [1 ]
Liu, F [1 ]
机构
[1] Nanjing Univ, State Key Lab Coordinat Chem, Dept Chem, Nanjing 210093, Jiangsu, Peoples R China
关键词
chromophore; calixarene; nonlinear optics; conformation; Knoevenagel condensation;
D O I
10.1002/cjoc.200690006
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The new chromophore compounds with NLO properties were prepared by Knoevenagel condensation from formyl or diformyl calix[4]arene and isophorone derivatives in the presence of piperidine and acetic acid, respectively. In these chromophore calix[4]arenes, the ring locked trienes were employed as the conjugation bridge and electron acceptor in D-pi-A units. The NMR spectra demonstrated that they existed in a cone conformation and consequently non-conjugated D-pi-A units could be oriented at nearly the same direction.
引用
收藏
页码:124 / 128
页数:5
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