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The Photochemistry of M 3 (CO) 12 (M = Ru, Os) with Pyrazole and Its Substituted Derivatives
Author(s) -
Leadbeater Nicholas E.,
Lewis Jack,
Raithby Paul R.,
Ward Gregory P.
Publication year - 1998
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/(sici)1099-0682(199810)1998:10<1479::aid-ejic1479>3.0.co;2-u
Subject(s) - chemistry , pyrazole , ruthenium , photochemistry , medicinal chemistry , combinatorial chemistry , catalysis , organic chemistry
The photochemistry of M 3 (CO) 12 [M = Ru ( 1a ), Os ( 1b )] with pyrazole, 3,5‐dimethylpyrazole, and 3,5‐diphenylpyrazole is documented. With 1a , photolysis with pyrazole leads to the substitution product HRu 3 (CO) 10 (C 3 H 3 N 2 ) ( 2a ). In the case of 1b , the initial product is the ortho ‐metallated species HOs 3 (CO) 10 (C 3 H 3 N 2 ) ( 3b ), heating of which yields HOs 3 (CO) 10 (C 3 H 3 N 2 ) ( 2b ). Photolysis of 1a and 1b with 3,5‐dimethylpyrazole yields HRu 3 (CO) 10 (C 3 HMe 2 N 2 ) ( 4a ) and HOs 3 (CO) 10 (C 3 HMe 2 N 2 ) ( 4b ), respectively. The molecular structure of 4b has been determined by X‐ray crystallography. There is no reaction on photolysis of 1a and 1b with 3,5‐diphenylpyrazole.