97774-21-5Relevant articles and documents
Copper Thioamide Complexes. Syntheses and Structures of Di-μ-chloro-bisdicopper(I) and of Biscopper(I) Chloride, Complexes Containing Tetrahedrally Coordinated Copper Centres
Fuller, Michael W.,Costanzo, Vincent,Murray, Keith S.,Black, David St. C.,Hambley, Trevor W.,Snow, Michael R.
, p. 865 - 878 (2007/10/02)
The mononuclear copper(I) complex Cu(PhCSNHC5H4N)2Cl (Cu(pbctaH)2Cl) and the binuclear copper(I) complex 2 (2) have been prepared from copper(II) chloride and N-(pyridin-2-yl)benzenecarbothioamide (pbcta H) and their structures determined by single-crystal X-ray diffraction studies.Cu(PhCSNHC5H4)2Cl crystallizes in the space group C2/c with the parameters a 28.042(3) Angstroem, b 6.385(a) Angstroem, c 14.158(12) Angstroem, β 117.01(1) deg.The stereochemistry about the copper is essentially tetrahedral, with coordination occurringthrough the pyridine nitrogen and the sulfur of the thioamide group, and an NCuS angle of 95.7(1) deg. Cu(PhCSNHC5H4N)2Cl)2 crystallizes in the space group C2/c with the parameters a 16.538(6) Angstroem, b 9.135(4) Angstroem, c 16.470(6) Angstroem, β 93.925(15) deg.The crystal is made up of binuclear chloro-bridged units, the essentially tetrahedral stereochemistry about the copper atoms being completed by coordination from pyridine nitrogen and the sulfur of the thioamide group, with an NCuS angle of 99.5(1) deg.The Cu2Cl2 group is nonplanar, with the copper atoms 0.133 Angstroem above and the chlorine atoms 0.133 Angstroem below the average plane.Other complexes can be isolated from reactions of excess copper(II) chloride with ligand although their structures have not been characterized.A diamagnetic orange compound and a paramagnetic yellow compound apparently derived from copper(II) oxidation of the thioamide were also obtained.Other products, prepared under more basic conditions, are also described.No stable copper(II) complexes of the parent thioamide could be isolated.Use of a 4-nitro substituted benzenecarbothioamideligand did, however, produce a bis-chelated copper(II) complex.
