Luminescent silver nitrate complexes of bis[2-(diphenylphosphano)phenyl]ether (DPEphos): Crystal structure of [Ag(DPEphos)(py2SH)2]NO3 |
| |
| Authors: | George ChristofidisPhilip J Cox Paraskevas Aslanidis |
| |
| Institution: | a Aristotle University of Thessaloniki, Faculty of Chemistry, Inorganic Chemistry Laboratory, P.O. Box 135, GR-541 24 Thessaloniki, Greece
b School of Pharmacy and Life Sciences, The Robert Gordon University, Schoolhill, Aberdeen AB10 1FR, Scotland, UK |
| |
| Abstract: | Heteroleptic silver(I) nitrate complexes containing the bis2-(diphenylphosphano)phenyl]ether (DPEphos) ligand and the heterocyclic thioamides pyridine-2(1H)-thione (py2SH), pyrimidine-2(1H)-thione (pymtH), 4,6-dimethylpyrimidine-2(1H)-thione (dmpymtH), 1,4,5,6-tetrahydropyrimidine-2-thione (thpymtH) or 1,3-imidazolidine-2-thione (imtH2) have been synthesized and characterized by IR and UV-Vis spectroscopy, elemental analyses and melting point determinations. The complexes can be obtained by the addition of the thioamide ligand to an AgNO3-diphosphane adduct in dichloromethane/ethanol solution. The molecular structure of Ag(DPEphos)(py2SH)2]NO3 complex has been established by single-crystal X-ray diffraction. The structure features a tetrahedral silver(I) center with two phosphorus atoms from the chelating diphos ligand, and the exocyclic sulfur atom of two heterocyclic thioamide units. Intense blue-green emission is observed in the region 470-483 nm for all the complexes in the solid state and in solution at ambient temperature. |
| |
| Keywords: | Silver(I) nitrate complexes bis[2-(Diphenylphosphano)phenyl]ether Heterocyclic thiones X-ray Luminescence |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
