Copper(II) complexes of bis- and tetrakis-(2-pyridylsulfanylmethyl)benzenes
摘要:
Reactions of copper(II) salts with the ligand 1,2-bis(2-pyridylsulfanylmethyl)benzene (L-1) and the isomeric ligands 1,2,3,4-tetrakis(2-pyridylsulfanylmethyl)benzene (L-2) and 1,2,4,5-tetrakis(2-pyridylsulfanylmethyl)benzene (L-3) give copper(II) complexes, some of which have been characterised by X-ray crystallography. [Cu(L-1)Cl-2] is found to be a one-dimensional coordination polymer, containing two subtly different copper atom environments. By contrast, [Cu-2(L-2)Cl-4] and [Cu-2(L-3)(NO3)(4)] are discrete species with, in each case, the copper atoms chelated by adjacent ligand arms. (C) 2003 Elsevier Ltd. All rights reserved.
Syntheses and X-ray crystal structures of poly(pyridylsulfanylmethyl)arenes: new multi-armed molecules
摘要:
The synthesis of a series of seven new poly(pyridylsulfanylmethyl)arenes is reported. These are readily prepared from either 2- or 4-mercaptopyridine and a poly(bromomethyl)arene in the presence of triethylamine. Compounds with three, four, six and eight pyridylsulfanylmethyl arms are reported. These have been fully characterised and, in four cases, the relative orientations of the pyridylsulfanylmethyl arms have been ascertained by X-ray structural analysis. (C) 2003 Elsevier Science Ltd. All rights reserved.