Issue 10, 2012

Exploring Ag⋯H–B interactions in coordination polymers: silver–alkanedinitrile networks with cobalt carbaborane anions

Abstract

Uncommon silver coordination environments occupied exclusively by Ag⋯H–B interactions, namely Ag⋯(H–B)4 and Ag⋯(H–B)6 centres, were observed in two novel coordination polymers, [Ag(pim)(Cobdc)][Ag(Cobdc)] (1) (pim = pimelonitrile, CN(CH2)5CN, and Cobdc = cobalt(III) bis(dicarbollide) anion, [Co(C2B9H11)2]) and [Ag3(sub)2(Cobdc)3] (2) (sub = suberonitrile, CN(CH2)6CN). The Ag⋯(H–B)4 centre was observed in compound 1 and shows a geometry that resembles an extremely distorted tetrahedron, while a highly distorted octahedral centre Ag⋯(H–B)6 was found in 2. The two compounds were isolated as crystalline materials, their structures established by single crystal X-ray diffraction and also characterized by CHN elemental analysis and infrared spectroscopy. The compounds 1 and 2 feature neutral 1D and 2D coordination polymers, [Ag(pim)(Cobdc)]1 and [Ag3(sub)2(Cobdc)3]2, respectively.

Graphical abstract: Exploring Ag⋯H–B interactions in coordination polymers: silver–alkanedinitrile networks with cobalt carbaborane anions

Supplementary files

Article information

Article type
Paper
Submitted
02 Jan 2012
Accepted
15 Feb 2012
First published
16 Feb 2012

CrystEngComm, 2012,14, 3367-3372

Exploring Ag⋯H–B interactions in coordination polymers: silver–alkanedinitrile networks with cobalt carbaborane anions

L. Cunha-Silva and M. J. Hardie, CrystEngComm, 2012, 14, 3367 DOI: 10.1039/C2CE00003B

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