Premium
PPh(2‐C 6 H 4 S) 2 as a Pincer Ligand in Nickel(II) and Palladium(II) Complexes — X‐ray Structure of [Ni{PPh(C 6 H 4 S) 2 }(PPh 2 Me)], [Pd 2 (μ‐dppe){PPh(C 6 H 4 S) 2 } 2 ] and [Ni{PPh(C 6 H 4 S) 2 }] 2
Author(s) -
Cerrada Elena,
Falvello Larry R.,
Hursthouse Michael B.,
Laguna Mariano,
Luquín Asunción,
PozoGonzalo Cristina
Publication year - 2002
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 - 10.1002/1099-0682(200203)2002:4<826::aid-ejic826>3.0.co;2-m
Subject(s) - chemistry , denticity , palladium , nickel , ligand (biochemistry) , pincer movement , medicinal chemistry , stoichiometry , stereochemistry , catalysis , crystal structure , crystallography , organic chemistry , biochemistry , receptor
The phosphanylthiol PPh(2‐C 6 H 4 SH) 2 reacts with the Ni II and Pd II complexes [MCl 2 L 2 ] in the presence of NaOEt to give the mononuclear derivatives [M{PPh(C 6 H 4 S) 2 }L] [M = Ni, L = PPh 3 ( 1 ), PPh 2 Me ( 2 ); M = Pd, L = PPh 3 ( 3 )]. The analogous reaction starting with complexes containing bidentate ligands [MX 2 (L‐L)] produces different results depending on the ligand used. The complexes [M{PPh(C 6 H 4 S) 2 }(dppm)] [M = Ni ( 4 ), Pd ( 5 )], with an unligated phosphorus atom in the diphosphane are obtained with bis(diphenylphosphanyl)methane (dppm), while the dinuclear complexes [M 2 (μ‐dppe){PPh(C 6 H 4 S) 2 }] [M = Ni ( 6 ), Pd ( 7 )] are isolated in the case of 1,2‐bis(diphenylphosphanyl)ethane (dppe). With 1,10‐phenanthroline (phen), the complexes [M{PPh(C 6 H 4 S) 2 }(phen)] [M = Ni ( 8 ), Pd ( 9 )] are obtained, but when 2,2′‐bipyridine is used the dinuclear compounds [M{PPh(C 6 H 4 S) 2 }] 2 [M = Ni ( 10 ), Pd ( 11 )] are isolated instead. Complexes 10 and 11 , which can be obtained starting from NiCl 2 or [PdCl 2 (NCPh) 2 ] respectively, afford complexes 1 − 7 when treated with the respective phosphanes in the appropriate stoichiometries. The structures of 2 , 7 and 10 have been confirmed by X‐ray analysis.