Abstract

In substituted calix[4]‐arenes—cyclophanes consisting of four phenol moieties connected by methylene bridgesthe number and also the relative positions of the donor and/or acceptor π‐conjugated (D‐π‐A) units can be varied by changing the configuration. The Figure illustrates the cone configuration. The molecular and thin‐film NLO properties of three tetra‐D‐π‐A‐substituted calix[4]arenes, including their orientation in thin films and the stability of their NLO properties, are described. magnified image

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