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Synthesis and Linear Optical Properties of Tris(catecholato)metal( III , IV ) Complexes with Acceptor‐Substituted Ligands
Author(s) -
Kriegisch Volker,
Lambert Christoph
Publication year - 2005
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200500401
Subject(s) - chemistry , chromophore , acceptor , ionic bonding , tris , metal , nonlinear optical , photochemistry , crystallography , stereochemistry , ion , organic chemistry , biochemistry , physics , nonlinear system , quantum mechanics , condensed matter physics
The synthesis of C 3 ‐symmetric chromophores ( 2 – 4 , 9 , 10 , 14 ) with acceptor‐substituted catecholato ligands and different central metal atoms (Si, Al, Ti) is described. These complexes might serve as octupolar chromophores with first‐order nonlinear optical properties. UV/Vis spectroscopic investigations show a red‐shift of the lowest‐energy charge‐transfer band on going from Si IV , Al III to Ti IV complexes, dependent on the increasing ionic character of the M–O bond. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)