Rusanova, Daniela, Pike, Kevin J., Dupree, Ray, Hanna, John V., Antzutkin, Oleg N., Persson, Ingmar and Forsling, Willis. (2006) Spectroscopic characterization of the polycrystalline copper(I) di-n-butyldithlophosphate cluster - Cu-8[S2P(O-n-Bu)(2)](6)(mu(8)-S): Solid-state P-31 CP/MAS and static Cu-65 NMR studies. Inorganica Chimica Acta, Vol.359 (No.12). pp. 3903-3910. ISSN 0020-1693

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Abstract

A polycrystalline copper(1) O,O'-di-n-butyldithiophosphate cluster compound, Cu-8[S2P(O-n-Bu)(2)](6)(mu(8)-S), was synthesized and characterized by P-31 CP/MAS NMR at 8.46 T and static Cu-65 NMR at multiple magnetic field strengths (7.05, 9.4 and 14.1 T). The principal values of the P-31 chemical shift tensor and the Cu-65 chemical shift and quadrupolar splitting parameters are presented. The data are compared to those for the analogous octa-nuclear cluster compounds [Cu-8(S2P(OEt)(2))6(mu(8)-S)], [Cu-8(S2P(O-n-Pr)(2))(6)(mu(8)-S)] and [Cu-8(S2P(O-i-Bu)(2))(6)(mu(8)-S)]. The transverse relaxation time constant, T-2, for the [Cu-8(S2P(O-n-Bu)(2))(6)(mu(8)-S)] cluster compound was found to be 160 +/- 8 ps. Possible intra-molecular motions in the cluster structures in terms of size and branching of the hydrocarbon chains are discussed as reasons for the different Cu-65 NMR responses of the systems. (c) 2006 Elsevier B.V. All rights reserved.

Item Type:	Journal Article
Subjects:	Q Science > QD Chemistry
Divisions:	Faculty of Science > Chemistry
Journal or Publication Title:	Inorganica Chimica Acta
Publisher:	Elsevier BV
ISSN:	0020-1693
Date:	1 September 2006
Volume:	Vol.359
Number:	No.12
Number of Pages:	8
Page Range:	pp. 3903-3910
Identification Number:	10.1016/j.ica.2006.04.011
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
URI:	http://wrap.warwick.ac.uk/id/eprint/33102

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