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New Photosensitizers of the Ruthenium‐Polypyridine Family for the Water Splitting Reaction
Author(s) -
Juris Alberto,
Barigelletti Francesco,
Balzani Vincenzo,
Belser Peter,
Von Zelewsky Alex
Publication year - 1982
Publication title -
israel journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.908
H-Index - 54
eISSN - 1869-5868
pISSN - 0021-2148
DOI - 10.1002/ijch.198200018
Subject(s) - chemistry , ruthenium , bipyridine , electron transfer , ligand (biochemistry) , water splitting , photochemistry , stereochemistry , crystallography , catalysis , organic chemistry , photocatalysis , biochemistry , receptor , crystal structure
The photophysical and electron transfer properties of the following Ru(II) complexes have been characterized: Ru(bpy) 3‐ n (biq) 2+ n , Ru(bpy) 2 (Cl 2 ‐bpy) 2+ , Ru(Cl 2 ‐bpy) 2+ 3 , Ru(bpy) 2 (NO 2 ‐bpy) 2+ , Ru(NO 2 ‐bpy) 2+ 3 , Ru(bpy) 2 (opdi) 2+ , Ru(bpy) 2 (phedi) 2+ , where n = 1 to 3, bpy = 2,2′‐bipyridine, biq = 2,2′‐biquinoline, and opdi and phedi are o‐quinodiimine ligands. The properties of these and other Ru‐polypyridine type photosensitizers are discussed on the basis of the requirements needed to split water with solar energy in an efficient way. It is shown that the Ru(bpy) 2 (LL) 2+ complexes, where LL is a polypyridine‐type ligand which is easier to reduce than bpy, are expected to be more efficient photosensitizers than Ru(bpy) 2+ 3 .