Issue 5, 1997

Synthesis and structural study of a novel nonlinear optical material: the tolane derivative ethyl 2-(4-benzyloxyphenylethynyl)-5-nitrobenzene-1-carbamate

Abstract

We have synthesized the tolane derivative ethyl 2-(4-benzyloxyphenylethynyl)-5-nitrobenzene-1-carbamate1, a promising material for nonlinear optics. Compound 1 has several crystal forms and we have characterized their structural properties by X-ray diffraction. One of the three forms, which is crystallized from a strong polar solvent, has a non-centrosymmetric structure and is ca. ten times as strong a second-harmonics generator as meta-nitroaniline. A hydrogen bond is found to perform an important role in forming the non-centrosymmetric geometry, which is necessary for a nonlinear optical crystal.

Article information

Article type
Paper

J. Mater. Chem., 1997,7, 705-711

Synthesis and structural study of a novel nonlinear optical material: the tolane derivative ethyl 2-(4-benzyloxyphenylethynyl)-5-nitrobenzene-1-carbamate

M. Kato, K. Kobayashi, M. Okunaka, N. Sugita, M. Kiguchi and Y. Taniguchi, J. Mater. Chem., 1997, 7, 705 DOI: 10.1039/A607858C

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