Cyano-bridged gadolinium-tungstate bimetallic one-dimensional chains with a dimethylacetamide ligand

Wataru Kosaka, Kazuhito Hashimoto, Shin Ichi Ohkoshi

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29 Citations (Scopus)

Abstract

Reaction of GdIII(NO)3·6H2O and (Bu3NH)3[WV(CN)8] (BU3N = tributylamine) in N,N-dimethylacetamide (DMA) yielded two types of Gd-W bimetal assemblies with noncentrosymmetric crystal structures: GdIII(DMA) n-[WV(CN)8] (n = 6, 1; n = 5, 2). X-ray single crystal analyses showed that 1 crystallizes in the monoclinic system of the Cc space group (a = 12.6254(6) Å, b = 16.8052(8) Å, c = 20.2499(11) Å β = 103.2893(08)°, Z = 4), and 2 crystallizes in the monoclinic system of the P21 space group (a = 9.761(2) Å, b = 19.573(5) Å, c = 10.502(4) Å, β = 109.247(12)°, Z = 2). These two crystals consist of one-dimensional linear chains, in which [Gd III(DMA)n]3+ and [WV(CN) 8]3- ions are linked in an alternating fashion. The difference between these two compounds, that is, 1 contains eight-coordinate GdIII whereas 2 contains seven-coordinate GdIII, is due to the temperature during preparation. Magnetic data showed that the magnetic interaction between GdIII (S = 7/2) and WV (S = 1/2) is antiferromagnetic coupling of-0.28(1)cm-1 for 1 and -0.42(l)cm -1 for 2.

Original languageEnglish
Pages (from-to)2350-2356
Number of pages7
JournalBulletin of the Chemical Society of Japan
Volume80
Issue number12
DOIs
Publication statusPublished - 2007 Dec 1
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)

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