Laser induced multi-component luminescence of [CuNCS(1,10-phen)P(CH2N(CH2CH2)2O)3]—the first example of CuNCS complexes with diimines and tris(aminomethyl)phosphanes
| Autor: | Marcin Sobczyk, Radosław Starosta, Urszula K. Komarnicka, Maciej Barys |
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| Rok vydání: | 2012 |
| Předmět: |
Thermogravimetric analysis
Photoluminescence Chemistry Biophysics General Chemistry Time-dependent density functional theory Crystal structure Condensed Matter Physics Photochemistry Biochemistry Atomic and Molecular Physics and Optics Crystallography chemistry.chemical_compound Morpholine Absorption (chemistry) Luminescence Coordination geometry |
| Zdroj: | Journal of Luminescence. 132:1842-1847 |
| ISSN: | 0022-2313 |
| Popis: | [CuNCS(phen)P(CH2N(CH2CH2)2O)3], a novel mixed-ligand complex of copper(I) isothiocyanate with 1,10-phenanthroline and tris(aminomethyl)phosphane derived from morpholine have been synthesized. It was characterized by elemental analysis, thermogravimetric and differential thermal analyses and studied by NMR, mass, UV–Vis, IR and luminescence spectroscopies. The X-ray structure of the complex was determined. The coordination geometry about the Cu(I) center is pseudo-tetrahedral. The complex exhibits a very weak photoluminescence in the solid state. Surprisingly, the luminescence spectra of the crystalline sample at room and LN temperatures show several bands similarly to absorption(reflectance) spectrum. On the basis of TDDFT calculations we interpreted these bands as of MLLCT type resulting mainly from two transitions: π⁎(CuNCS)→π⁎(phen) and σ(CuP)→π⁎(phen). This strongly suggests that all the ligands are involved into absorption and PL spectra, however their complex character (several bands observed) does not allow the more precise interpretation. |
| Databáze: | OpenAIRE |
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