The First Structurally Characterized Salen-Indium Complexes

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Abstract

In this manuscript are reported the synthesis and characterization of the first complexes of indium incorporating the acen and salen classes of ligands. This includes the compounds of formula LInMe (where L = acen (<b>1</b>) (<i>N</i>,<i>N</i>′-ethylenebis(2-hydroxy-<i>α</i>-methylbenzylidenimine)), salen (<b>2</b>) (<i>N</i>,<i>N</i>′-ethylenebis(2-hydroxybenzylideneimine)), salophen (<b>3</b>) (<i>N</i>,<i>N</i>′-(1,2-phenylene)bis(2-hydroxybenzylidenimine)), salomphen (<b>4</b>) (<i>N</i>,<i>N</i>′-(4,5-dimethyl-1,2-phenylene)bis(2-hydroxybenzylidenimine)). Attempts to prepare the derivatives, [In(R)(salpen)] (salpen = <i>N</i>,<i>N</i>′-propylenebis(2-hydroxybenzylidenimine), R = Me, Et) led to the formation of the bimetallic complexes, [(InMe<sub>2</sub>)<sub>2</sub>(salpen)] (<b>5</b>) and [In(Et<sub>2</sub>)<sub>2</sub>(salpen)] (<b>6</b>). Dissolution of <b>5</b> and <b>6</b> in MeOH causes the formation of three unusual products. They are the ligand bridged compounds [{In(<i>μ</i>-OMe)(<i>μ</i>-salpen)}<sub>2</sub>] (<b>7</b>), [{In(salpen)}<sub>2</sub>(<i>μ</i>-salpen)] (<b>8</b>) and the methoxy-only bridged complex, [{In(salpen)(<i>μ</i>-OMe)}<sub>2</sub>] (<b>9</b>). Compounds <b>7</b>—<b>9</b> are the first structurally characterized indium–salen complexes. For purposes of comparison, the structure of [{Al(salen)(<i>μ</i>-OMe)}<sub>2</sub>] (<b>10</b>) will also be described.

Journal

  • Bulletin of the Chemical Society of Japan

    Bulletin of the Chemical Society of Japan 70(9), 2093-2100, 1997-09-15

    The Chemical Society of Japan

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Codes

  • NII Article ID (NAID)
    10008922680
  • NII NACSIS-CAT ID (NCID)
    AA00580132
  • Text Lang
    ENG
  • Article Type
    ART
  • ISSN
    00092673
  • NDL Article ID
    4307567
  • NDL Source Classification
    ZP1(科学技術--化学・化学工業)
  • NDL Call No.
    Z53-B35
  • Data Source
    CJP  NDL  J-STAGE 
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