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Synthesis of Calix[4]arene Derivatives with NLO Properties

✍ Scribed by Zhu Bai; Chao-Zhi Zhang; Guo-Yuan Lu; Fang Liu

Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
78 KB
Volume
24
Category
Article
ISSN
0256-7660

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✦ Synopsis

Abstract

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‐π‐A units. The NMR spectra demonstrated that they existed in a cone conformation and consequently non‐conjugated D‐π‐A units could be oriented at nearly the same direction.

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