Solvothermal synthesis of novel antimony sulphides containing [Sb4S7](2-) units
Vaqueiro, P., Darlow, D.P., Powell, A.V. and Chippindale, A.M. (2004) Solvothermal synthesis of novel antimony sulphides containing [Sb4S7](2-) units. Solid State Ionics, 172 (1-4). pp. 601-605. ISSN 0167-2738
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To link to this article DOI: 10.1016/j.ssi.2004.01.064
Two new antimony sulphides have been prepared solvothermally and characterised by single-crystal X-ray diffraction. [Co(en)(3)][Sb4S7] (1) was prepared at 140 degreesC from COS, Sb2S3 and S in the presence of ethylenediamine, whilst heating a mixture of Sb2S3, Co and S in tris(2aminoethyl)amine, N(CH2CH2NH2)(3), at 180 degreesC fegults in the formation of [C6H20N4][Sb4S7] (2). Both materials contain [Sb4S7](2-) chains formed from linkage of cyclic Sb3S63- units by SbS33- pyramids. In (1), the [Sb4S7] chains are linked by secondary Sb-S interactions to form sheets, between which the. charge balancing [Co(en)(3)](2+) cations reside. The structure of (2) involves interconnection of pairs of [Sb4S7](2-) chains through Sb2S2 rings to form isolated [Sb4S7](2-) double chains which are interleaved by protonated template molecules. (C) 2004 Elsevier B.V. All rights resereved.
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