Chelate structures of 5-(H/Br)-2-hydroxybenzaldehyde-4-allyl-thiosemicarbazones (H2L): Synthesis and structural characterizations of [Ni(L)(PPh3)] and [Ru(HL)2(PPh3)2] |
| |
| Authors: | Bahri Ülküseven Tülay Bal-Demirci Mehmet Akkurt erife P&#x;nar Yal&#x;n Orhan Büyükgüngr |
| |
| Institution: | aDepartment of Chemistry, Istanbul University, Engineering Faculty, 34320 Avcılar, Istanbul, Turkey;bDepartment of Physics, Erciyes University, Faculty of Arts and Sciences, 38039 Kayseri, Turkey;cDepartment of Physics, Ondokuzmayıs University, Faculty of Arts and Sciences, 55139 Samsun, Turkey |
| |
| Abstract: | The reactions of 5-R-2-hydroxybenzaldehyde-4-allyl-thiosemicarbazone {R: H (L1); Br (L2)} with MII(PPh3)nCl2] (M = Ni, n = 2 and M = Ru, n = 3) in a 1:1 molar ratio have given stable solid complexes corresponding to the general formula Ni(L)(PPh3)] and Ru(HL)2(PPh3)2]. While the 1:1 nickel complexes are formed from an ONS donor set of the thiosemicarbazone and the P atom of triphenylphosphine in a square planar structure, the 1:2 ruthenium complexes consist of a couple from each of N, S and P donor atoms in a distorted octahedral geometry. These mixed-ligand complexes have been characterized by elemental analysis, IR, UV–Vis, APCI-MS, 1H and 31P NMR spectroscopies. The structures of Ni(L2)(PPh3)] (II) and Ru(L1H)2(PPh3)2] (III) were determined by single crystal X-ray diffraction. |
| |
| Keywords: | Thiosemicarbazone Triphenylphosphine Coordination modes Nickel Ruthenium X-ray crystal structure |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
