Complexes of N-thiophosphorylthioureas RNHC(S)NHP(S)(OiPr)2 (HL) (R = pyridin-2-yl, pyridin-3-yl, 6-amino-pyridin-2-yl) with copper(I): Crystal structures of Cu(PPh3)nL (n = 1, 2)

We reported new mono- and polynuclear complexes of Cu(I) with thioureas of common formula RNHC(S)NHP(S)(OiPr)2 [R = pyridin-2-yl (HLa), pyridin-3-yl (HLb), 6-amino-pyridin-2-yl (HLc)]. The structure of the resulting compounds was studied by means of IR, 1H, 31P{1H} NMR spectroscopy, ES-MS and microanalysis. The crystal structures of Cu(PPh3)2Lb (2) and Cu(PPh3)Lc (3) were determined by single-crystal X-ray diffraction.