Fabrication of blue organic light-emitting diodes from novel uranium complexes: synthesis, characterization, and electroluminescence studies of uranium anthracene-9-carboxylate complexes

Dalton Transactions : an International Journal of Inorganic Chemistry
Khodabakhsh DarzinezhadChristoph Janiak

Abstract

In this study, three uranium(vi) complexes, [UO2(C15H9O2)2(CH3CH2OH)2]·2CH3CH2OH (1), [U2O4(C15H9O2)2(CH3O)2(CH3OH)2]·2CH3OH (2), and [U2O4(C15H9O2)4(CH3OH)2]·2H2O (3), were prepared by reacting anthracene-9-carboxylic acid with uranyl acetate dihydrate using various ligand to uranyl acetate ratios in different solvents. The infrared and UV-Vis spectra along with elemental and thermal analyses showed the formation of mono- and dinuclear anthracene-9-carboxylate complexes of uranium. A 1 to 3 molar ratio of uranyl acetate to anthracene-9-carboxylic acid in ethanol resulted in the formation of the mononuclear complex 1, whereas a 1 to 2 and 1 to 3 molar ratio of uranyl acetate to anthracene-9-carboxylic acid in methanol produced the dinuclear complexes 2 and 3, respectively. Single-crystal structure determinations of 1, 2 and 3 revealed hexagonal bipyramidal geometries for the mononuclear uranium complex of 1 and a pentagonal geometry for the dinuclear uranium complexes of 2 and 3. The single-crystal structures of complexes 2 and 3 showed π-π interactions in contrast to complex 1. The strong π-π interactions in complex 2 and 3 lead to an enhanced photoluminescence intensity in comparison with 1 without π-π interaction. The optica...Continue Reading

References

Oct 10, 2006·Dalton Transactions : an International Journal of Inorganic Chemistry·Mark Frisch, Christopher L Cahill
Apr 28, 2007·The Journal of Physical Chemistry. a·Robert G Denning
Dec 25, 2007·Acta Crystallographica. Section A, Foundations of Crystallography·George M Sheldrick
Aug 22, 2008·Journal of the American Chemical Society·Suzanne C BartKarsten Meyer
Jan 27, 2009·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Eny KusriniHoong-Kun Fun
Nov 21, 2009·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·H A AzabG M Khairy
May 22, 2010·Advanced Materials·Franky So, Denis Kondakov
Jun 10, 2010·Chemistry : a European Journal·Satoru TsushimaKarim Fahmy
Aug 14, 2012·Chemical Reviews·Michael B Andrews, Christopher L Cahill
Dec 9, 2014·Dalton Transactions : an International Journal of Inorganic Chemistry·Sheng WangJie Dai
Jan 25, 2017·Chemical Society Reviews·Zhiyong YangMatthew P Aldred
Dec 7, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·Wei LiuShuao Wang
Jan 5, 2018·Chemical Communications : Chem Comm·Xia WangShuao Wang
Jan 9, 2018·ACS Applied Materials & Interfaces·Wei LiuShuao Wang

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