title: Spectroscopic and structural study of the newly synthesized heteroligand complex of copper with creatinine and urea.
abstract: Study of copper complex of creatinine and urea is very important in life science and medicine. In this paper, spectroscopic and structural study of a newly synthesized heteroligand complex of copper with creatinine and urea has been discussed. Structural studies have been carried out using DFT calculations and spectroscopic analyses were carried out by FT-IR, Raman, UV-vis absorption and fluorescence techniques. The copper complex of creatinine and the heteroligand complex were found to have much increased water solubility as compared to pure creatinine. The analysis of FT-IR and Raman spectra helps to understand the coordination properties of the two ligands and to determine the probable structure of the heteroligand complex. The LIBS spectra of the heteroligand complex reveal that the complex is free from other metal impurities. UV-visible absorption spectra and the fluorescence emission spectra of the aqueous solution of Cu-Crn-urea heteroligand complex at different solute concentrations have been analyzed and the complex is found to be rigid and stable in its monomeric form at very low concentrations.
authors.affiliation: Department of Physics, Banaras Hindu University, Varanasi 221005, India.
authors.forename: Debraj
authors.initials: D
authors.lastname: Gangopadhyay
authors.affiliation: Department of Chemistry, Banaras Hindu University, Varanasi 221005, India.
authors.forename: Sachin Kumar
authors.initials: SK
authors.lastname: Singh
authors.affiliation: Department of Physics, Banaras Hindu University, Varanasi 221005, India.
authors.forename: Poornima
authors.initials: P
authors.lastname: Sharma
authors.affiliation: Physics Department, MMV, Banaras Hindu University, Varanasi 221005, India.
authors.forename: Hirdyesh
authors.initials: H
authors.lastname: Mishra
authors.affiliation: Centre for Atomic and Molecular Physics, Manipal University, Manipal 576 104, India.
authors.forename: V K
authors.initials: VK
authors.lastname: Unnikrishnan
authors.affiliation: Department of Chemistry, Banaras Hindu University, Varanasi 221005, India.
authors.forename: Bachcha
authors.initials: B
authors.lastname: Singh
authors.affiliation: Department of Physics, Banaras Hindu University, Varanasi 221005, India. Electronic address: ranjanksingh65@rediffmail.com.
authors.forename: Ranjan K
authors.initials: RK
authors.lastname: Singh
mesh_terms: D056831:Coordination Complexes / Q000138:chemical synthesis / Q000737:chemistry*; D003300:Copper / Q000737:chemistry*; D003404:Creatinine / Q000031:analogs & derivatives* / Q000138:chemical synthesis; D008024:Ligands; D008958:Models, Molecular; D011789:Quantum Theory; D013050:Spectrometry, Fluorescence; D013056:Spectrophotometry, Ultraviolet; D017550:Spectroscopy, Fourier Transform Infrared; D013059:Spectrum Analysis, Raman; D014508:Urea / Q000031:analogs & derivatives* / Q000138:chemical synthesis
chemical_list: D056831:Coordination Complexes; D008024:Ligands; D003300:Copper; D014508:Urea; D003404:Creatinine
keywords: Creatinine; Fluorescence spectroscopy; Metal complexation; Raman spectroscopy; UV–Vis spectroscopy; Urea