Halogen Photoelimination from Dirhodium Phosphazane Complexes via Chloride-Bridged Intermediates.
Halogen photoelimination is a critical step in HX-splitting photocatalysis. Herein, we report the photoreduction of a pair of valence-isomeric dirhodium phosphazane complexes, and suggest that a common intermediate is accessed in the photochemistry of both mixed-valent and valence-symmetric complexes. The results of these investigations suggest that halogen photoelimination proceeds by two sequential photochemical reactions: ligand dissociation followed by subsequent halogen elimination.
Department of Chemistry, 6-335, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139-4307, U.S.A. ; Department of Chemistry and Chemical Biology, 12 Oxford Street, Cambridge, MA 02138-2902.
David C
DC
Powers
Matthew B
MB
Chambers
Thomas S
TS
Teets
Noémie
N
Elgrishi
Bryce L
BL
Anderson
Daniel G
DG
Nocera