Synthesis, Characterization and Luminescence Properties of Pr3+, Nd3+, Eu3+ and Gd3+ Complexes with Curcumin Pyrazole

14 Pages Posted: 30 Apr 2020

See all articles by Ruokuosenuo Zatsu

Ruokuosenuo Zatsu

Nagaland University

Maddela Prabhakar

Nagaland University

M. Indira Devi

affiliation not provided to SSRN

Abstract

A series of new lanthanide complexes [LnCl 3 . xH 2 O:(L) 3 ] (where; L = curcumin pyrazole and Ln = Pr 3+ , Nd 3+ , Eu 3+ and Gd 3+ have been synthesized in ethanol under reflux conditions for 24 h. The synthesized complexes were characterised by elemental analysis, IR, UV-Vis, fluorescence and TGA. The formations of the nona-coordinated lanthanide complexes have been detected through elemental analysis. In IR-spectra, the formation of the new band at 460 cm -1 could convey the mode of co-ordination of nitrogen atom to the lanthanide. Absorption intensity as well as luminescence properties of the synthesised complexes were analysed through UV-Vis and fluorescence spectra to reveal the formation of complexes. The percentage weight loss of the complexes was studied with TGA analysis to check the thermal stability of the complexes. Further the quantum yields of the ligand and lanthanide complexes have been analyzed to study their comparative luminescence properties.

Keywords: Synthesis, Lanthanides Complexes, Curcumin Pyrazole, Spectroscopy, TGA and Quantum Yield.

Suggested Citation

Zatsu, Ruokuosenuo and Prabhakar, Maddela and Devi, M. Indira, Synthesis, Characterization and Luminescence Properties of Pr3+, Nd3+, Eu3+ and Gd3+ Complexes with Curcumin Pyrazole. Available at SSRN: https://ssrn.com/abstract=3589132

Ruokuosenuo Zatsu

Nagaland University

Kohima
Nagaland
Nagaland
United States

Maddela Prabhakar

Nagaland University

Kohima
Nagaland
Nagaland
United States

M. Indira Devi (Contact Author)

affiliation not provided to SSRN

No Address Available

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