Labilizing the Photoinert: Extraordinarily Facile Photochemical Ligand Ejection in an [Os(N^N)3 ] 2+Complex

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Abstract

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 (Φ363≈1.2 %). Further, both cis and trans isomers of the photodechelated ligand-loss solvento intermediate [Os(κ2-btz)2(κ1-btz)(NCMe)]2+ are unambiguously observed and characterized by NMR spectroscopy and mass spectrometry.
Original languageEnglish
Pages (from-to)10697-10701
Number of pages5
JournalAngewandte Chemie - International Edition
Volume55
Issue number36
DOIs
Publication statusPublished - 26 Aug 2016

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Ligands
Isomers
Nuclear magnetic resonance spectroscopy
Mass spectrometry

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@article{007cf73bdaf946f799e169b3adfb720b,
title = "Labilizing the Photoinert: Extraordinarily Facile Photochemical Ligand Ejection in an [Os(N^N)3 ] 2+Complex",
abstract = "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 (Φ363≈1.2 {\%}). Further, both cis and trans isomers of the photodechelated ligand-loss solvento intermediate [Os(κ2-btz)2(κ1-btz)(NCMe)]2+ are unambiguously observed and characterized by NMR spectroscopy and mass spectrometry.",
author = "Scattergood, {Paul A.} and Ross, {Daniel A. W.} and Rice, {Craig R.} and Elliott, {Paul I. P.}",
note = "Not deposited within 3 months of accepted date. Deposited within 3 months of published date. HN 27/10/2017",
year = "2016",
month = "8",
day = "26",
doi = "10.1002/anie.201604959",
language = "English",
volume = "55",
pages = "10697--10701",
journal = "Angewandte Chemie - International Edition",
issn = "1433-7851",
publisher = "John Wiley and Sons Ltd",
number = "36",

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TY - JOUR

T1 - Labilizing the Photoinert: Extraordinarily Facile Photochemical Ligand Ejection in an [Os(N^N)3 ] 2+Complex

AU - Scattergood, Paul A.

AU - Ross, Daniel A. W.

AU - Rice, Craig R.

AU - Elliott, Paul I. P.

N1 - Not deposited within 3 months of accepted date. Deposited within 3 months of published date. HN 27/10/2017

PY - 2016/8/26

Y1 - 2016/8/26

N2 - 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 (Φ363≈1.2 %). Further, both cis and trans isomers of the photodechelated ligand-loss solvento intermediate [Os(κ2-btz)2(κ1-btz)(NCMe)]2+ are unambiguously observed and characterized by NMR spectroscopy and mass spectrometry.

AB - 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 (Φ363≈1.2 %). Further, both cis and trans isomers of the photodechelated ligand-loss solvento intermediate [Os(κ2-btz)2(κ1-btz)(NCMe)]2+ are unambiguously observed and characterized by NMR spectroscopy and mass spectrometry.

U2 - 10.1002/anie.201604959

DO - 10.1002/anie.201604959

M3 - Article

VL - 55

SP - 10697

EP - 10701

JO - Angewandte Chemie - International Edition

JF - Angewandte Chemie - International Edition

SN - 1433-7851

IS - 36

ER -