ePrints

Coordination chemistry of [Nb2(S2)2]4+ clusters: Preparation and crystal structures of K4[Nb2(S2)2(C2O 4)4] · 6H2O and(NH4)6[Nb2(S2)2(C 2O4)4](C2O4)

Lookup NU author(s): Dr Maxim Sokolov, Professor William Clegg

Downloads

Full text for this publication is not currently held within this repository. Alternative links are provided below where available.

Abstract

Bis(disulfido)bridged NbIV cluster oxalate complexes [Nb2(S2)2(C2O4) 4]4- were prepared by ligand substitution reaction from the aqua ion [Nb2(μ-S2)2(H2O) 8]4+ and isolated as K4[Nb2(S2)2(C2O 4)4] · 6 H2O (1), (NH4)6[Nb2-(S2)2(C 2O4)4](C2O4) (2) and Cs4[Nb2(S2)2(C2O 4)4] · 4 H2O (3). The crystal structures of 1 and 2 were determined. The crystals of 1 belong to the space group P1, a = 720.94(7) pm, b = 983.64(10) pm, c = 1071.45(10) pm, α = 109.812(1)°, β = 91.586(2)°, γ = 105.257(2)°. The crystals of 2 are monoclinic, space group C2/c, a = 1567.9(2) pm, b = 1906.6(3) pm, c = 3000.9(4) pm, β = 95.502(2)°. The packing in 2 shows alternating layers of cluster anions and of ammonium/uncoordinated oxalates perpendicular to the [1 0 1] direction. Vibration spectra, electrochemistry and thermogravimetric properties of the complexes are also discussed. © WILEY-VCH Verlag GmbH, 2001.

Publication metadata

Author(s): Sokolov M, Virovets A, Clegg W

Publication type: Article

Publication status: Published

Journal: Zeitschrift fur Anorganische und Allgemeine Chemie

Year: 2001

Volume: 627

Issue: 1

Pages: 119-123

ISSN (print): 0044-2313

ISSN (electronic): 1521-3749

Publisher: Wiley - V C H Verlag GmbH & Co. KGaA

URL: http://dx.doi.org/10.1002/1521-3749(200101)627:1<119::AID-ZAAC119>3.0.CO;2-E

DOI: 10.1002/1521-3749(200101)627:1<119::AID-ZAAC119>3.0.CO;2-E

Altmetrics

Share