Synthesis and characterization of some novel ruthenium(II) complexes containing thiolate ligands |
| |
| Authors: | Prashant Kumar |
| |
| Institution: | Department of Chemistry, Faculty of Science, Banaras Hindu University, Varanasi 221005, UP, India |
| |
| Abstract: | Reactions of the ruthenium complexes RuH(CO)Cl(PPh3)3] and RuCl2(PPh3)3] with hetero-difunctional S,N-donor ligands 2-mercapto-5-methyl-1,3,5-thiadiazole (HL1), 2-mercapto-4-methyl-5-thiazoleacetic acid (HL2), and 2-mercaptobenzothiazole (HL3) have been investigated. Neutral complexes RuCl(CO)(PPh3)2(HL1)] (1), RuCl(CO)(PPh3)2(HL2)] (2), RuCl(CO)(PPh3)2(HL3)] (3), Ru(PPh3)2(HL1)2] (4), RuCl(PPh3)3(HL2)] (5), and RuCl(PPh3)3(HL3)] (6) imparting κ2-S,N-bonded ligands have been isolated from these reactions. Complexes 1 and 4 reacted with diphenyl-2-pyridylphosphine (PPh2Py) to give neutral κ1-P bonded complexes RuCl(CO)(κ1-P-PPh2Py)2(HL1)] (7), and Ru(κ1-P-PPh2Py)2(HL1)2] (8). Complexes 1-8 have been characterized by analytical, spectral (IR, NMR, and electronic absorption) and electrochemical studies. Molecular structures of 1, 2, 4, and 7 have been determined crystallographically. Crystal structure determination revealed coordination of the mercapto-thiadiazole ligands (HL1-HL3) to ruthenium as κ2-N,S-thiolates and presence of rare intermolecular S-S weak bonding interaction in complex 1. |
| |
| Keywords: | Ruthenium complexes 2-Mercapto-5-methyl-1 3 5-thiadiazole 2-Mercapto-4-methyl-5-thiazoleacetic acid 2-Mercaptobenzothiazole Diphenyl-2-pyridylphosphine |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
