Journal
DALTON TRANSACTIONS
Volume 42, Issue 4, Pages 1109-1115Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2dt32125d
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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{chi((3))}) of the whole series of complexes in the range of 2.04-2.41 x 10(-11) esu is, however, not ionic size-dependent.
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