Room-Temperature Synthesis of Thiostannates from { Ni(tren) (2) Sn2S6 }n

Hilbert, J., Nather, C., Weihrich, R. and Bensch, Wolfgang (2016) Room-Temperature Synthesis of Thiostannates from { Ni(tren) (2) Sn2S6 }n Inorganic Chemistry, 55 (16). pp. 7859-7865. DOI 10.1021/acs.inorgchem.6b00625.

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Abstract

The compound {[Ni(tren)](2)[Sn2S6]}(n) (1) (tren = tris(2-aminoethyl)amine, C6H18N4) was successfully applied as source for the room-temperature synthesis of the new thiostannates [Ni(tren)(ma)(H2O)](2)[Sn2S6]center dot 4H(2)O (2) (ma = methylamine, CH5N) and [Ni(tren)(1,2-dap)](2)[(SnS6)-S-2]center dot 2H(2)O (3) (1,2-dap = 1,2-diaminopropane, C3H10N2). The Ni-S bonds in the Ni2S2N8 bioctahedron in the structure of 1 are analyzed with density functional theory calculations demonstrating significantly differing Ni-S bond strengths. Because of this asymmetry they are easily broken in the presence of an excess of ma or 1,2-dap immediately followed by Ni-N bond formation to N donor atoms of the amine ligands thus generating [Ni(tren)(amine)](2+) complexes. The chemical reactions are fast, and compounds 2 and 3 are formed within 1 h. The synthesis concept presented here opens hitherto unknown possibilities for preparation of new thiostannates.

Document Type: Article
Additional Information: Times Cited: 0 Hilbert, Jessica Naether, Christian Weihrich, Richard Bensch, Wolfgang
Research affiliation: OceanRep > The Future Ocean - Cluster of Excellence
Kiel University
Refereed: Yes
DOI etc.: 10.1021/acs.inorgchem.6b00625
ISSN: 0020-1669
Projects: Future Ocean
Date Deposited: 16 Mar 2017 07:53
Last Modified: 16 Mar 2017 07:53
URI: http://eprints.uni-kiel.de/id/eprint/36131

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