title: Sandwich-type tetrakis(phthalocyaninato) rare earth(III)-cadmium(II) quadruple-deckers. The effect of f-electrons.
abstract: Systematic studies over the synthesis of sandwich-type tetrakis[2,3,9,10,16,17,23,24-octa(octyloxy)phthalocyaninato] heterometallic complexes for the whole series of lanthanide metals and yttrium have been conducted, revealing the dependence of the formation and isolation of the target quadruple-decker compounds on the rare earth ionic size, which is supported by the electronic absorption spectroscopic result. Nevertheless, comparative electrochemical investigations between the lanthanide and yttrium quadruple-deckers reveal the effect of f-electrons, actually the f-f interaction between the lanthanide centers separated by a divalent cadmium ion in the tetrakis(phthalocyaninato) lanthanide-cadmium complexes. The effective imaginary third order molecular hyperpolarizability (Im{χ((3))}) of the whole series of complexes in the range of 2.04-2.41 × 10(-11) esu is, however, not ionic size-dependent.
authors.affiliation: Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry, University of Science and Technology Beijing, Beijing 100083, China.
authors.forename: Hong
authors.initials: H
authors.lastname: Shang
authors.forename: Hailong
authors.initials: H
authors.lastname: Wang
authors.forename: Kang
authors.initials: K
authors.lastname: Wang
authors.forename: Jinglan
authors.initials: J
authors.lastname: Kan
authors.forename: Wei
authors.initials: W
authors.lastname: Cao
authors.forename: Jianzhuang
authors.initials: J
authors.lastname: Jiang