4,5-Bis(diphenylthiophosphinoyl)-1,2,3-triazole, LT-S2: a new varidentate ligand containing diphenylthiophosphinoyl moieties

The novel ligand 4,5-bis(diphenylthiophosphinoyl)-1,2,3-triazole, LT-S2H, has been synthesized, converted to the triethylamine salt, and to the palladium complexes Pd[LT-S2]2 and Pd[LT-S2][η3-methallyl]. Structures of LT-S2H, of its 2-acetyl derivative, of Pd[LT-S2]2 and Pd[LT-S2][η3-methallyl] were determined by X-ray crystallography. In the last two complexes the LT-S2 ligand was N,S-bonded.