Premium
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
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201604959
Subject(s) - chemistry , ligand (biochemistry) , reactivity (psychology) , nuclear magnetic resonance spectroscopy , mass spectrometry , spectroscopy , stereochemistry , medicinal chemistry , photochemistry , physics , receptor , medicine , biochemistry , alternative medicine , pathology , chromatography , quantum mechanics
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.