Abstract
Reactions of C10H7-1-N(PPh2)2 (1) and C10H7-1-N(P(Se)Ph2)2 (2) ligands with mercury(II)iodide in equimolar ratio gave cis-[HgI2{1-κ2P,P}] (3) and cis-[HgI2{2-κ2Se,Se}] (4). Also, refluxing of monooxidized thioyl and selenoyl bis(phosphino)amine ligands C10H7-1-N(P(E)Ph2)(PPh2) (E = S (5), Se (6)) with [Ru(CO)3Cl2]2 dimer afforded cis-[Ru(CO)2Cl2{5-κ2P,S}] (7) and cis-[Ru(CO)2Cl2{6-κ2P,Se}] (8). Complexes 3, 4, 7 and 8 were identified and characterized by multinuclear NMR (1H, 13C, 31P and 77Se NMR) and IR spectroscopy. The molecular structure of 5 was determined by single X-ray crystallography. 5 is the first structurally characterized example of this kind of κ2P,S -bidentate ligand. The novel ruthenium(II) complexes 7 and 8 show high catalytic activity in the transfer hydrogenation of acetophenone derivatives to 1-phenylethanol derivatives in the presence of 2-propanol as the hydrogen source.
Graphical Abstract
Acknowledgments
We would like to thank Dr. Munther Khanfer for collecting the X-ray data and Dr. Ziad Moussa for performing GC analysis. The X-ray of compound 5 was provided by Homdi Mango Research center (HMRC), Jordan University, Jordan. Also, we gratefully acknowledge J.U.S.T., U. A. E. U. and Hashimiate Universities for various supports.