Synthesis and study of mixed ligand monomer Cu(I) compounds with Cu-As bonds. Crystal and molecular structure of bis(triphenylarsine)(2-thioxo hexamethyleneimine)copper(I) bromide
Synthesis and study of mixed ligand monomer Cu(I) compounds with Cu-As bonds. Crystal and molecular structure of bis(triphenylarsine)(2-thioxo hexamethyleneimine)copper(I) bromide
(EN)
Karagiannidis, P.
(EN)
Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείας
(EL)
Karagiannidis, P.
(EN)
A new series of mixed ligand coordination compounds with Cu-As bonds is synthesized by the reaction of Cu(AsPh3)3X, where X=Cl, Br, or [Cu(AsPh,)I], with 2-thioxohexamethyleneimine (o-thiocaprolactam, tclH) in acetone or by the addition of triphenylarsine to Cu(tclH),X in methanol/chloroform. The products of both reactions are formulated as Cu(tclH)(AsPh&X, on the basis of their elemental analyses, IR, "�H NMR and UV-Vis spectral data. The crystal structure of the bromo compound is reported and discussed with respect to that of Cu(tclH),(AsPh,)Br. The compound crystallizes in the monoclinic space group C2/c, with a =41.981(8), b=9.961(2), c=19.087(2) A, ~=101.09(1)0, 8 discrete molecules being present in the unit cell. The copper environment is a distorted tetrahedron, with two inequal Cu-As bonds, which are 2.411(2) and 2.372(2) A, respectively. The Cu-Br and CuS bond lengths are equal to 2.456(3) and 2.313(4) A, respectively, while the bond angles around copper vary from 104.4(O)"� for Asl-Cu-S to 116.1(l)"� for Asl-Cu-As2.
(EN)