Journal
DALTON TRANSACTIONS
Volume 41, Issue 18, Pages 5454-5457Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2dt30083d
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- U.S. Department of the Army through a MURI [W911NF-06-1-0280]
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The dimeric Zintl ion [Hg-2(As-7)(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.
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