The Assembly of Unique Hexanuclear Copper(I) Complexes with Effective White Luminescence.

Autor: Strelnik ID; Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center , Russian Academy of Sciences , Arbuzov-str, 8 , 420088 Kazan , Russia., Dayanova IR; Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center , Russian Academy of Sciences , Arbuzov-str, 8 , 420088 Kazan , Russia., Kolesnikov IE; Center for Optical and Laser Materials Research , Saint-Petersburg State University , Peterhof, Ulianovskaya-str, 5 , 198504 Saint-Petersburg , Russia., Fayzullin RR; Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center , Russian Academy of Sciences , Arbuzov-str, 8 , 420088 Kazan , Russia., Litvinov IA; Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center , Russian Academy of Sciences , Arbuzov-str, 8 , 420088 Kazan , Russia., Samigullina AI; Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center , Russian Academy of Sciences , Arbuzov-str, 8 , 420088 Kazan , Russia., Gerasimova TP; Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center , Russian Academy of Sciences , Arbuzov-str, 8 , 420088 Kazan , Russia., Katsyuba SA; Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center , Russian Academy of Sciences , Arbuzov-str, 8 , 420088 Kazan , Russia., Musina EI; Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center , Russian Academy of Sciences , Arbuzov-str, 8 , 420088 Kazan , Russia., Karasik AA; Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center , Russian Academy of Sciences , Arbuzov-str, 8 , 420088 Kazan , Russia.
Jazyk: angličtina
Zdroj: Inorganic chemistry [Inorg Chem] 2019 Jan 22; Vol. 58 (2), pp. 1048-1057. Date of Electronic Publication: 2019 Jan 02.
DOI: 10.1021/acs.inorgchem.8b01862
Abstrakt: The unique L 2 Cu 6 I 6 complexes containing two Cu 3 I 3 units have been obtained via reaction of 1,5-diaza-3,7-diphosphacyclooctanes bearing ethylpyridyl substituents at phosphorus atoms with an excess of copper iodide. The structure of one of the complexes was confirmed by X-ray diffraction. It was shown that the complexes can exist in two crystalline phases with different parameters of the unit cell, which were detected by the PXRD data analyses. The solvent-free crystalline phases of the complexes display rare solid-state white emission at room temperature, which is observed due to the presence of two broad bands in the emission spectra with maxima at 464 and 610 nm. Quantum chemical computations show that the high-energy band has 3 (M+X)LCT origin, whereas the low-energy band is interpreted as 3 CC. The quantum yields of white luminescence of complexes reach 15-20%.
Databáze: MEDLINE
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