Crystal structures of copper(I) and silver(I) chloride complexes containing 4-phenylthiosemicarbazide and triphenylphosphine ligands

Copper(I) and silver(I) chloride complexes containing triphenylphosphine (PPh3) and 4-phenyl-thiosemicarbazide (4-PTSC) ligands were prepared and structurally analyzed, namely [CuCl(4-PTSC)(PPh3)(2)] (1) and [AgCl(4-PTSC)(PPh3)(2)]CH3CN (2). Both compounds (1) and (2) exhibit a distorted tetrahedral metal coordination environment with two P atoms from two PPh3 ligands, one terminal S atom from the 4-PTSC ligand and a chloride ion. Intramolecular N-H center dot center dot center dot Cl and N-H center dot center dot center dot N hydrogen bonds are observed (graph set motifs S (6) and S (5), respectively). In the crystals of both complexes, molecules are linked to form dimers via bifurcated N-H center dot center dot center dot Cl hydrogen bonds involving the amine and chloride units. For compound (2), a solvate acetonitrile molecule acts as a hydrogen bond donor and acceptor via C-H(CH3CN) center dot center dot center dot Cl and C-H center dot center dot center dot N(CH3CN) interactions, leading to the formation of 1D chains along [010].