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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.
Autorzy
Rok wydania
2012
Czasopismo
Numer woluminu
132
Strony
1842-1847
DOI
10.1016/j.jlumin.2012.03.015
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
[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.
Słowa kluczowe
Copper(I) complex, crystal structure, luminescence, DFT calculation, Tris(aminomethyl)phosphane
Adres publiczny
https://dx.doi.org/10.1016/j.jlumin.2012.03.015
Strona internetowa wydawcy
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