Mössbauer and magnetic studies of copper(ii)-phthalocyanine effect on the spin states of bis(n-o-tolyl-2-imidazolaldimine)iron(ii) dithiocyanate

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Title:	Mössbauer and magnetic studies of copper(ii)-phthalocyanine effect on the spin states of bis(n-o-tolyl-2-imidazolaldimine)iron(ii) dithiocyanate
Authors:	Schue, C. F.;Lee, Z. C.;Wei, Ho-hsiang;魏和祥;Chen, M. C.;Wang, Yu
Contributors:	淡江大學化學學系
Date:	1994-08-01
Issue Date:	2009-12-01
Publisher:	Elsevier
Abstract:	The mononuclear complex of general formula [FeII(TIA)2(NCS)2] (1) and the heterotrinuclear complex of (Cu-Pc)2[Fe(TIA)2(NCS)2] (2), where TIA = N-o-tolyl-2-imidazolaldimine and Pc = phthalocyanine, have been synthesized. The X-ray crystal structure of 1 shows it to consist to two NCS groups in the cis position. The magnetic properties of the complexes have been measured down to 4.2 K and Mössbauer spectra have been recorded down to 20 K. In 1, the iron(II) is pure high-spin S = 2 (5T2) over the whole temperature range. In 2, a gradual spin crossover (5T2↔1A1) occurs below 298 K and the spin crossover is incomplete since it still presents a high-spin fraction about 0.35, even at 4.0 K.
Relation:	Polyhedron 13(15-16), pp.2259-2264
DOI:	10.1016/S0277-5387(00)88134-6
Appears in Collections:	[Graduate Institute & Department of Chemistry] Journal Article

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