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The first structurally characterized salen-indium complexes
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DOI：10.1246/bcsj.70.2093.png)
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摘要
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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 (1) (N,N'-ethylenebis-(2-hydroxy-alpha-methylbenzylidenimine)), salen (2) (N,N'-ethylenebis(2-hydroxybenzylideneimine)), salophen (3) (N,N'-(1,2-phenylene)bis (2-hydroxybenzylidenimine)), salomphen (4) (N,N'-(4,5-dimethyl-1,2-phenylene)bis(2-hydroxybenzyl-idenimine)). Attempts to prepare the derivatives, [In(R)(salpen)] (salpen = N,N'-propylenebis(2-hydroxybenzy R=Me, Et) led to the formation of the bimetallic complexes, [(InMe2)(2)(salpen)] (5) and [In(Et-2)(2)(salpen)] (6). Dissolution of 5 and 6 in MeOH causes the formation of three unusual products. They are the ligand bridged compounds [{In(mu OMe)(mu-salpen)}(2)] (7), [{In(salpen)}(2)(mu-salpen)] (8) and the methoxy-only bridged complex, [{In(salpen)(mu-OMe)}(2)] (9). Compounds 7-9 are the first structurally characterized indium-salen complexes. For purposes of comparison, the structure of [{Al(salen)(mu-OMe)}(2)] (10) will also be described.
Keyword:
TETRADENTATE N2O2 LIGANDS
ALUMINUM COMPLEXES
TRIMETALLIC ALUMINUM
CRYSTAL-STRUCTURES
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3.8
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