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

    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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