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Labilizing the Photoinert: Extraordinarily Facile Photochemical Ligand Ejection in an [Os(N^N) 3 ] 2+ Complex
Author(s) -
Scattergood Paul A.,
Ross Daniel A. W.,
Rice Craig R.,
Elliott Paul I. P.
Publication year - 2016
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201604959
Subject(s) - chemistry , photochemistry , ligand (biochemistry) , receptor , biochemistry
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 ( Φ 363 ≈1.2 %). Further, both cis and trans isomers of the photodechelated ligand‐loss solvento intermediate [Os(κ 2 ‐btz) 2 (κ 1 ‐btz)(NCMe)] 2+ are unambiguously observed and characterized by NMR spectroscopy and mass spectrometry.

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