“…Considering these studies and in continuation of our focus on the structural and antitumor properties of the gold( i ) complexes of phosphanes, 13–16,42–45 we report here the synthesis of a novel series of gold( i ) complexes ( 1–4 ) containing both mono-phosphane {(biphenyl-2-yl)di- tert -butylphosphane, Bdbp} and diphosphanes {1,2-bis(diphenylphosphano)ethane, Dppe; 1,3-bis(diphenylphosphano)propane, Dppp; 1,4-bis(diphenylphosphano)butane, Dppb and bis[2-(diphenylphosphano)methyl]amine, Dpma} ligands. The complexes were characterized by FTIR, NMR ( 1 H and 13 C) spectroscopic methods, and their structures were determined by single crystal X-ray diffraction analysis.…”