Title

Synthesis of a nickel bis(dithiolene) complex with strong near-infrared two-photon absorption

Authors

Authors

J. Y. Cho; J. Fu; L. A. Padilha; S. Barlow; E. W. Van Stryland; D. J. Hagan; M. Bishop;S. R. Marder

Comments

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Abbreviated Journal Title

Mol. Cryst. Liquid Cryst.

Keywords

dithiolene; nickel; two-photon absorption; Z-scan; LIQUID-CRYSTALLINE OCTOPUS; CROSS-SECTIONS; TELECOMMUNICATIONS; WAVELENGTHS; ABSORBING CHROMOPHORES; OPTICAL NONLINEARITIES; DITHIOLENE; COMPLEXES; PHASE CONJUGATION; ORGANIC-MOLECULES; IR ABSORPTION; PI-ACCEPTORS; Crystallography

Abstract

The diketones 4,4'-di[3,4-bis(n-dodecyloxy)styryl]benzil and 4,4'-di[3,4-bis(n-dodecyloxy)phenylethynyl]benzil have been synthesized from 4,4'-dibromobenzil using Heck coupling with the appropriate styrene and Sonogashira coupling with the appropriate phenylalkyne, respectively. Treatment of the distyrylbenzil derivative with phosphorus pentasulfide followed by nickel(II) chloride gave the corresponding extended nickel bis(dithiolene) derivative which shows strong near-infrared two-photon absorption with a cross-section of over 440 GM (1 GM = 10(-50) cm(4) S photon(-1) molecule(-1)) throughout the telecommunications range and a peak cross-section of 5300 GM at ca. 1.2 mu m.

Journal Title

Molecular Crystals and Liquid Crystals

Volume

485

Publication Date

1-1-2008

Document Type

Article; Proceedings Paper

Language

English

First Page

915

Last Page

927

WOS Identifier

WOS:000256185900020

ISSN

1542-1406

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