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Lookup NU author(s): Emeritus Professor Bill Clegg,
Dr Ross Harrington
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The new complex, cis-beta-[Cr(2,2,3-tet)(N-3)(2)]Br (2,2,3-tet = 1,4,7,11-tetraazaundecane), was prepared and its structure was determined by single-crystal X-ray diffraction. The chromium(III) atom is in a distorted octahedral environment coordinated by four nitrogen atoms of 2,2,3-tet and two azido ligands in a cis-beta arrangement, with bent Cr-N-3 linkages at the coordinating azide nitrogen atoms. The mean Cr-N(2,2,3-tet) and Cr-N(azide) bond lengths are 2.084(5) and 2.021(5) angstrom, respectively. The crystal structure is stabilized by ionic interactions, supported by N-H center dot center dot center dot N(azide) and N-H center dot center dot center dot Br hydrogen bonds. The IR and electronic spectroscopic properties are also discussed.
Author(s): Choi JH, Clegg W, Harrington RW
Publication type: Article
Publication status: Published
Journal: Zeitschrift fuer Anorganische und Allgemeine Chemie
Print publication date: 23/12/2010
ISSN (print): 0044-2313
ISSN (electronic): 1521-3749
Publisher: Wiley - VCH Verlag GmbH & Co. KGaA
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