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

Paul A. Scattergood; Daniel Ross; Craig R. Rice; Paul I. P. Elliott

doi:10.1002/anie.201604959

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

Paul A. Scattergood, Daniel Ross, Craig R. Rice, Paul I. P. Elliott

Research output: Contribution to journal › Article › peer-review

22 Citations (Scopus)

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 language	English
Pages (from-to)	10697-10701
Number of pages	5
Journal	Angewandte Chemie - International Edition
Volume	55
Issue number	36
Early online date	3 Aug 2016
DOIs	https://doi.org/10.1002/anie.201604959
Publication status	Published - 26 Aug 2016

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Paul Elliott
- P.I.Elliotthud.acuk
- Department of Physical and Life Sciences - Professor
- School of Applied Sciences
- Centre for Functional Materials - Director
- Chemical Synthesis and Design Centre - Associate Member
- Pharmacology and Therapeutics Centre - Associate Member
Person: Academic

Cite this

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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.",

keywords = "complexes, isomers, osmium, photochemistry, triazole",

author = "Scattergood, {Paul A.} and Daniel Ross 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",

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doi = "10.1002/anie.201604959",

language = "English",

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

AU - Scattergood, Paul A.

AU - Ross, Daniel

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.

KW - complexes

KW - isomers

KW - osmium

KW - photochemistry

KW - triazole

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 -

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

Abstract

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