Synthesis and structural characterization of novel symmetric homodinuclear iridium acetylacetonate complexes

Synthesis and structural characterization of novel symmetric homodinuclear iridium... Two novel symmetric homodinuclear iridium acetylacetonate complexes were synthesized via the direct reaction of 2 equivalent [(acac-O,O)2(acac-C3)Ir(III)(H2O)] with 1 equivalent of pyrazine or 4,4′-bipyridine. The structures were fully characterized by elemental analysis, 1H-NMR, and single-crystal X-ray diffraction. The structural data support that they have a highly symmetric dinuclear nature with two motifs containing iridium [(acac-O,O)2(acac-C3)Ir(III)] bridged by two nitrogen atoms of pyrazine or 4,4′-bipyridine in a trans position. Absorption spectra of both compounds were measured and purple-shifted about 78.9 nm of the metal-to-ligand charge transfer transition was observed. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Synthesis and structural characterization of novel symmetric homodinuclear iridium acetylacetonate complexes

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Publisher
Springer Journals
Copyright
Copyright © 2014 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-014-1745-z
Publisher site
See Article on Publisher Site

Abstract

Two novel symmetric homodinuclear iridium acetylacetonate complexes were synthesized via the direct reaction of 2 equivalent [(acac-O,O)2(acac-C3)Ir(III)(H2O)] with 1 equivalent of pyrazine or 4,4′-bipyridine. The structures were fully characterized by elemental analysis, 1H-NMR, and single-crystal X-ray diffraction. The structural data support that they have a highly symmetric dinuclear nature with two motifs containing iridium [(acac-O,O)2(acac-C3)Ir(III)] bridged by two nitrogen atoms of pyrazine or 4,4′-bipyridine in a trans position. Absorption spectra of both compounds were measured and purple-shifted about 78.9 nm of the metal-to-ligand charge transfer transition was observed.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Jul 11, 2014

References

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