Structural Characterization of Some Complexes of Group 13 Metal(iii) Nitrates with N,N'-Bidentate Bases
Peter C. Junk A B C , Brian W. Skelton A and Allan H. White AA Chemistry M313, School of Biomedical, Biomolecular and Chemical Sciences, University of Western Australia, Crawley WA 6009, Australia.
B School of Chemistry, Monash University, Clayton VIC 3800, Australia.
C Corresponding author. Email: peter.junk@sci.monash.edu.au
Australian Journal of Chemistry 59(2) 147-154 https://doi.org/10.1071/CH05267
Submitted: 7 October 2005 Accepted: 16 January 2006 Published: 7 March 2006
Abstract
The structural characterization of several novel complexes of gallium(iii) and indium(iii) nitrates, crystallized with 2,2′-bipyridyl (bpy) and 1,10-phenanthroline (phen) from nitromethane solution, is presented. The adduct In(NO3)3:bpy (1:2) is of the form [(ONO2)(O2NO)2In(bpy)2], rather than [(ONO2)3ML2] as found for the larger M = Ln (rare earth), Bi, despite similar 2-symmetry. Several hydroxo-bridged dimers, [L2M(OH)2ML2](NO3)4(·S) are also presented, the cations all of the same isomeric form. [(ONO2)(bpy)In(OH)2In(bpy)(O2NO)], interestingly, displays two different forms within the one crystal, by virtue of different dispositions of the coordinated nitrate. The structures of related cis-[(phen)2GaBr2]Br(·S) and [(en)2In(OH)2In(en)2](NO3)4 (en = H2N(CH2)2NH2) are also described, the latter isomorphous with its cobalt(iii) counterpart.
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