Issue 18, 2012

On the stability of an unsupported mercury–mercury bond linking group 15 Zintl clusters

Abstract

The dimeric Zintl ion [Hg2(As7)2]4− has been synthesized with high crystalline yield from the reaction of an ethylendiamine solution of the intermetallic Zintl phase K3As7 with diphenyl mercury. Single crystal X-ray diffraction of [K(2,2,2-crypt)]4[Hg2As14], 1 (2,2,2-crypt = 4,7,13,16,21,24-hexaoxa-1,10-diazabicyclo[8.8.8]-hexacosane), reveals that the cluster anion exhibits a Hg–Hg bond and the compound has been further characterized using Raman spectroscopy, cyclic voltammetry and its band gap energy was measured. Theoretical studies provide a microscopic understanding of the bonding in this unusual compound.

Graphical abstract: On the stability of an unsupported mercury–mercury bond linking group 15 Zintl clusters

Supplementary files

Article information

Article type
Communication
Submitted
20 Dec 2011
Accepted
22 Feb 2012
First published
06 Mar 2012

Dalton Trans., 2012,41, 5454-5457

On the stability of an unsupported mercury–mercury bond linking group 15 Zintl clusters

S. Mandal, A. C. Reber, M. Qian, R. Liu, H. M. Saavedra, S. Sen, P. S. Weiss, S. N. Khanna and A. Sen, Dalton Trans., 2012, 41, 5454 DOI: 10.1039/C2DT30083D

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