Facile in situ copper(ii) mediated CS bond activation transforming dithiocarbimate to carbamate and thiocarbamate generating Cu(ii) and Cu(i) complexesElectronic supplementary information (ESI) available: Experimental procedures including schemes for resonating structures of the ligand, the IR, 1H, 13C and 31P NMR discussions of the complexes along with their absorption spectra and photoluminescence spectra as well as variable temperature magnetic susceptibility studies of complex 2. CCDC refere

Facile in situ Cu( ii ) mediated transformation of p -tolylsulfonyldithiocarbimate in conjunction with polypyridyl or phosphine ligands into corresponding carbamate and thiocarbamate led to the formation of new copper complexes with varying nuclearities and geometries, via CS bond activation of the ligand within identical reaction systems. Copper( ii ) mediated activation of CS bond led to in situ transformation of the ligand dithiocarbimate to carbamate and thiocarbamate producing new copper( ii ) complexes [Cu(phen) 2 (L)](ClO 4 ) ( 1 ), [Cu 4 (bpy) 4 (-OH) 4 (L) 2 ](ClO 4 ) 2 5H 2 O ( 2 ) (L = CH 3 C 6 H 4 SO 2 NCOOCH 3 ) and the copper( i ) complex Cu(PPh 3 ) 2 (CH 3 C 6 H 4 NCSOCH 3 ) ( 3 ).