Raising the (metastable) bar: 100% photo-switching in [Pd(Bu4dien)(η1-O2)]+ approaches ambient temperature

Hatcher, Lauren E. ORCID: https://orcid.org/0000-0002-1549-9727 2016. Raising the (metastable) bar: 100% photo-switching in [Pd(Bu4dien)(η1-O2)]+ approaches ambient temperature. CrystEngComm 18 (22) , pp. 4180-4187. 10.1039/C5CE02434J

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Abstract

100% nitro–nitrito linkage isomerism is reported in single-crystals of the Pd(II)–nitrite system [Pd(Bu4dien)(η1-O2)]BPh4 (Bu4dien = N,N,N′,N′-tetrabutyldiethylenetriamine, BPh4 = tetraphenylborate). Complete conversion to a metastable endo-nitrito-(η1-NO) isomer is achieved after just 15 min irradiation with 400 nm LED light. The system is entirely metastable below 240 K, while pseudo-steady-state photocrystallographic experiments confirm that the excited state isomer is retained, at substantial conversion levels, under continuous illumination until 260 K. These results show promise for new linkage isomer systems, based on heavier transition metal centres, which display full functionality under near-ambient conditions.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Chemistry
Publisher:	Royal Society of Chemistry
ISSN:	1466-8033
Date of First Compliant Deposit:	18 March 2020
Date of Acceptance:	11 February 2016
Last Modified:	05 May 2023 14:12
URI:	https://orca.cardiff.ac.uk/id/eprint/130488

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