期刊
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
卷 -, 期 19, 页码 3806-3813出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejic.200400289
关键词
phthalocyanines; porphyrins; rare earth metals; sandwich complexes; triple-decker complexes
Two series of mixed phthalocyaninato and porphyrinato rare earth(III) triple-decker complexes [M-2(PC)(TCIPP)(2)] (1a-10a) and [M-2(PC)(2)(TCIPP)] (1b-11b) [M = Y, La-Er except Ce and Pm; Pc = phthalocyaninate; TClPP = tetrakis(4-chlorophenyl)porphyrinate] have been prepared by treating the half-sandwich complexes [M(TCIPP)(acac)] (acac = acetylacetonate), generated in situ from [M(acac)(3)].nH(2)O and H-2(TCIPP), with Li-2(PC). All the triple-decker complexes have been characterized by a wide range of spectroscopic and electrochemical methods. The molecular structures Of [M-2(PC)(TCIPP)(2)] (M = Y, Ho) have also been determined, and show a symmetrical disposition of ligands, with two outer domed TCIPP and one inner Pc rings. A systematic investigation of the optical and electrochemical data of these complexes has revealed the nature of the HOMO and LUMO, as well as the origin of the electronic absorptions of these triple-decker complexes. (C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004.
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