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Title: Synthesis and metal complexes of a chelating ligand containing thiomorpholine and pyridine: 2,6-bis (thiomorpholinomethyl) pyridine
Authors: Li, Y.
Lai, Y.-H. 
Mok, K.F. 
Drew, M.G.B.
Keywords: Copper complexes
Crystal structures
Nickel complexes
Palladium complexes
Thiomorphiline complexes
Issue Date: 1-Oct-1998
Citation: Li, Y.,Lai, Y.-H.,Mok, K.F.,Drew, M.G.B. (1998-10-01). Synthesis and metal complexes of a chelating ligand containing thiomorpholine and pyridine: 2,6-bis (thiomorpholinomethyl) pyridine. Inorganica Chimica Acta 279 (2) : 221-225. ScholarBank@NUS Repository.
Abstract: A chelating ligand, 2,6-bis(thiomorpholinomethyl)pyridine (L), was synthesised. Its palladium(II), copper(II) and nickel(II) complexes of the formula ML(NO3)2, (M = Pd, Cu and Ni), were prepared and characterised. The molecular structures of the three complexes were determined by X-ray diffraction. In all the compounds prepared the ligand acts in a tridentate fashion using its three N atoms while the two S atoms remain free. The Pd complex possesses a distorted square planar coordination geometry with one of the two nitrato groups coordinating as a unidentate ligand and the other ionic. The Pd-N(pyridine) bond length is 1.857(4) Å, which is believed to be the shortest Pd-N separation ever observed. In the Cu complex, the copper atom is five-coordinated in a distorted square planar arrangement with the two nitrato groups acting as unidentate ligands and occupying the apex and one equatorial position. The Ni complex has a distorted octahedral coordination sphere; one nitrato group behaves in a chelating fashion and the other unidentate. © 1998 Elsevier Science S.A. All rights reserved.
Source Title: Inorganica Chimica Acta
ISSN: 00201693
Appears in Collections:Staff Publications

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