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Organometallic Nickel(II) Complexes Containing Thiolate and Dithiocarbamate Ligands
Author(s) -
Sánchez Gregorio,
Ruiz Francisco,
Serrano José L.,
de Arellano M. Carmen Ramírez,
López Gregorio
Publication year - 2000
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(200010)2000:10<2185::aid-ejic2185>3.0.co;2-k
Subject(s) - nickel , dichloromethane , chemistry , alkali metal , metal , medicinal chemistry , crystal structure , dithiocarbamate , stereochemistry , nuclear chemistry , solvent , crystallography , organic chemistry
The mono(pentafluorophenyl)nickel(II) complexes [Ni(C 6 F 5 )ClL 2 ] (L = PPhMe 2 , PPh 2 Me; L 2 = dppe) react with KSR (R = Ph, C 6 H 4 Me‐ p , C 6 H 4 OMe‐ p , C 6 H 4 Cl‐ p , C 6 H 3 Cl 2 ‐2,6, C 6 H 4 NO 2 ‐ p ) at room temperature in acetone/dichloromethane to give the mononuclear thiolate complexes [Ni(C 6 F 5 )(SR)L 2 ]. The binuclear μ‐thiolate complex [{Ni(C 6 F 5 )(PPhMe 2 )} 2 (μ‐SC 6 H 4 NO 2 ‐ p ) 2 ] is obtained by reaction of KSC 6 H 4 NO 2 ‐ p with the same chloro complex in refluxing dichloromethane. A single‐crystal X‐ray diffraction study of [Ni(C 6 F 5 )(SC 6 H 4 NO 2 ‐ p )(PPhMe 2 ) 2 ] and [{Ni 2 (C 6 F 5 ) 2 (PPhMe 2 ) 2 (μ‐SC 6 H 4 NO 2 ‐ p ) 2 ] has established the mononuclear and binuclear nature of the complexes. The dithiocarbamatenickel complexes [Ni(C 6 F 5 )(S 2 CNR 2 )L] (L = PPhMe 2 , PPh 2 Me, PEt 3 ; R = Et, i Pr; R 2 = C 5 H 10 , C 4 H 8 O) have been prepared by reaction of [Ni(C 6 F 5 )ClL 2 ] (L = PPhMe 2 , PPh 2 Me, PEt 3 ) with the alkali metal salt of the corresponding dithioacid. A single‐crystal X‐ray diffraction study of [Ni(C 6 F 5 )(S 2 CN i Pr 2 )(PPhMe 2 )] has established the mononuclear nature of the complex, and the geometry around each Ni atom as that of a tetrahedrally distorted square‐planar geometry. Analytical (C, H, N), spectroscopic (IR, 1 H, and 19 F NMR), and mass spectrometry (FAB) data have been used for structural assignments.