Visible light induced formation of a tungsten hydride complex.
In: Dalton Transactions: An International Journal of Inorganic Chemistry, Jg. 52 (2023-03-14), Heft 10, S. 3210-3218
academicJournal
Zugriff:
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. [ABSTRACT FROM AUTHOR]
Titel: |
Visible light induced formation of a tungsten hydride complex.
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Autor/in / Beteiligte Person: | Isaacs, Diane P. ; Gruninger, Cole T. ; Huang, Tao ; Jordan, Aldo M. ; Nicholas, Genique ; Chen, Chun-Hsing ; ter Horst, Marc A. ; Dempsey, Jillian L. |
Zeitschrift: | Dalton Transactions: An International Journal of Inorganic Chemistry, Jg. 52 (2023-03-14), Heft 10, S. 3210-3218 |
Veröffentlichung: | 2023 |
Medientyp: | academicJournal |
ISSN: | 1477-9226 (print) |
DOI: | 10.1039/d2dt03675d |
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