Crystal structures and spectroscopic properties of palladium complexes isolated from Pd-EDTA solutions |
| |
| Authors: | Marina Kaplun |
| |
| Institution: | Department of Chemistry, Inorganic Chemistry, Umeå University, SE-901 87 Umeå, Sweden |
| |
| Abstract: | Two complexes were isolated from aqueous Pd(NO3)2-Na2H2EDTA solutions and studied by single crystal X-ray diffraction, IR/Raman spectroscopy, and photoelectron spectroscopy. The first complex, Pd(Hkpda)2 (kpda = ketopiperazinediacetate dianion, C8H10N2O5), forms yellow parallelepipeds during slow evaporation of Pd(NO3)2-Na2H2EDTA solution at 25 °C, and is a result of EDTA oxidation. The second one, Pd(μ-H2EDTA)]2 · 2NaNO3 · 7.5H2O, with two EDTA molecules acting as bridges between two palladium atoms, forms yellow bipyramides during fast evaporation at 60 °C. In both complexes, the palladium atoms adopt a planar trans-geometry by bonding to two nitrogen and two oxygen atoms of two ligand molecules. |
| |
| Keywords: | Palladium EDTA kpda Crystal structure |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
