Raising the (metastable) bar: 100% photo-switching in [Pd(Bu4dien)(η1-NO2)]+ approaches ambient temperature

Lauren E. Hatcher

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

100% nitro-nitrito linkage isomerism is reported in single-crystals of the Pd(ii)-nitrite system [Pd(Bu4dien)(η1-NO2)]BPh4 (Bu4dien = N,N,N′,N′-tetrabutyldiethylenetriamine, BPh4 = tetraphenylborate). Complete conversion to a metastable endo-nitrito-(η1-ONO) 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.

Original languageEnglish
Pages (from-to)4180-4187
Number of pages8
JournalCrystEngComm
Volume18
Issue number22
DOIs
Publication statusPublished - 14 Jun 2016

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