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A Neutral Organometallic Fluoro Complex Can Be a Good Ligand
Author(s) -
Coue Laurent,
Cuesta Luciano,
Morales Dolores,
Halfen Jason A.,
Pérez Julio,
Riera Lucía,
Riera Víctor,
Miguel Daniel,
Connelly Neil G.,
Boonyuen Supakorn
Publication year - 2004
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.200305706
Subject(s) - trifluoromethanesulfonate , chemistry , fluoride , trifluoromethyl , medicinal chemistry , ligand (biochemistry) , organometallic chemistry , metal , bipyridine , stereochemistry , crystallography , inorganic chemistry , catalysis , crystal structure , organic chemistry , biochemistry , alkyl , receptor
The reaction of the complex [Mo(OTf)(η 3 ‐C 3 H 4 ‐Me‐2)(CO) 2 (phen)] ( 1 ) (OTf = trifluoromethylsulfonate; phen = 1,10‐phenanthroline) with tetrabutylammonium fluoride trihydrate afforded the fluoride complex [MoF(η 3 ‐C 3 H 4 ‐Me‐2)(CO) 2 (phen)] ( 2 ). The IR spectrum and the oxidation potential of 2 reflect the fact that its metal center is more electron‐rich than that of the chloro analogue [MoCl(η 3 ‐C 3 H 4 ‐Me‐2)(CO) 2 (phen)]. Compound 2 reacted with 1 affording the homobinuclear complex [{Mo(η 3 ‐C 3 H 4 ‐Me‐2)(CO) 2 (phen)} 2 (μ‐F)][OTf] ( 3 ), with a fluoride bridge. Compound 2 also reacts with the species generated in situ by triflate abstraction from [M(OTf)(CO) 3 (′NN′)] (M = Mn, Re; ′NN′ = 2,2′‐bipyridine (bipy), phen) using NaBAr′ 4 (Ar′ = 3,5‐bis(trifluoromethyl)phenyl), affording the heterobinuclear complexes [{Mo(η 3 ‐C 3 H 4 ‐Me‐2)(CO) 2 (phen)}(μ‐F){M(CO) 3 (′NN′)}][BAr′ 4 ] (M = Mn, ′NN′ = bipy ( 4 ); M = Re, ′NN′ = phen ( 5 )). All new compounds have been characterized by spectroscopic methods (IR and NMR) and, in the case of 1 , 2 , 3 , and 4 , also by means of X‐ray diffraction analysis.