Issue 10, 2023

Visible light induced formation of a tungsten hydride complex

Abstract

When irradiated with blue light in the presence of a Lewis base (L), [CpW(CO)3]2 undergoes metal–metal bond cleavage followed by a disproportionation reaction to form [CpW(CO)3L]+ and [CpW(CO)3]. Here, we show that in the presence of pyridinium tetrafluoroborate, [CpW(CO)3] reacts further to form a metal hydride complex CpW(CO)3H. The rection was monitored through in situ photo 1H NMR spectroscopy experiments and the mechanism of light-driven hydride formation was investigated by determining quantum yields of formation. Quantum yields of formation of CpW(CO)3H correlate with I−1/2 (I = photon flux on our sample tube), indicating that the net disproportionation of [CpW(CO)3]2 to form the hydride precursor [CpW(CO)3] occurs primarily through a radical chain mechanism.

Graphical abstract: Visible light induced formation of a tungsten hydride complex

Supplementary files

Article information

Article type
Paper
Submitted
16 Қар. 2022
Accepted
07 Ақп. 2023
First published
17 Ақп. 2023

Dalton Trans., 2023,52, 3210-3218

Author version available

Visible light induced formation of a tungsten hydride complex

D. P. Isaacs, C. T. Gruninger, T. Huang, A. M. Jordan, G. Nicholas, C. Chen, M. A. ter Horst and J. L. Dempsey, Dalton Trans., 2023, 52, 3210 DOI: 10.1039/D2DT03675D

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements