Structural elucidation and physicochemical properties of mononuclear Uranyl(VI) complexes incorporating dianionic units.
Two derivatives of organouranyl mononuclear complexes [UO2(L)THF] (1) and [UO2(L)Alc] (2), where L = (2,2'-(1E,1'E)-(2,2-dimethylpropane-1,3-dyl)bis(azanylylidene, THF = Tetrahydrofuran, Alc = Alcohol), have been prepared. These complexes have been determined by elemental analyses, single crystal X-ray crystallography and various spectroscopic studies. Moreover, the structure of these complexes have also been studied by DFT and time dependent DFT measurements showing that both the complexes have distorted pentagonal bipyramidal environment around uranyl ion. TD-DFT results indicate that the complex 1 displays an intense band at 458.7 nm which is mainly associated to the uranyl centered LMCT, where complex 2 shows a band at 461.8 nm that have significant LMCT character. The bonding has been further analyzed by EDA and NBO. The photocatalytic activity of complexes 1 and 2 for the degradation of rhodamine-B (RhB) and methylene blue (MB) under the irradiation of 500W Xe lamp has been explored, and found more efficient in presence of complex 1 than complex 2 for both dyes. In addition, dye adsorption and photoluminescence properties have also been discussed for both complexes.
Department of Chemistry, College of Science, King Saud University, P. O. Box 2455, Riyadh 11451, KSA.
Mohammad
M
Azam
School of Chemistry, Bharathidasan University, Tiruchirappalli-620024, Tamil Nadu, India.
Gunasekaran
G
Velmurugan
Department of Chemistry, College of Science, King Saud University, P. O. Box 2455, Riyadh 11451, KSA.
Saikh Mohammad
SM
Wabaidur
Institute of General and Ecological Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924, Lodz, Poland.
Agata
A
Trzesowska-Kruszynska
Institute of General and Ecological Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924, Lodz, Poland.
Rafal
R
Kruszynski
Department of Chemistry, College of Science, King Saud University, P. O. Box 2455, Riyadh 11451, KSA.
Saud I
SI
Al-Resayes
Department of Chemistry, College of Science, King Saud University, P. O. Box 2455, Riyadh 11451, KSA.
Zeid A
ZA
Al-Othman
School of Chemistry, Bharathidasan University, Tiruchirappalli-620024, Tamil Nadu, India.
Ponnambalam
P
Venuvanalingam