Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 55, Issue 36, Pages 10697-10701Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201604959
Keywords
complexes; isomers; osmium; photochemistry; triazole
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Funding
- University of Huddersfield
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Whilst [Os(N<^>N)(3)](2+) complexes are supposed to be photochemically inert to ligand loss, the complex [Os(btz)(3)](2+) (btz=1,1-dibenzyl-4,4-bi-1,2,3-triazolyl) undergoes unprecedented photolytic reactivity to liberate free btz (phi(363)approximate to 1.2%). Further, both cis and trans isomers of the photodechelated ligand-loss solvento intermediate [Os((2)-btz)(2)((1)-btz)(NCMe)](2+) are unambiguously observed and characterized by NMR spectroscopy and mass spectrometry.
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