Original scientific paper

Excitation and emission luminescence spectra and structure of 2,6-dimethylpiperidinium manganese(II) tetrachloride in solid state

Ilija D. Burić ; Zavod za fiziku, Farmaceutski fakultet, Univerzitet u Beogradu, Dr Subotića 8, 11000 Beograd, Yugoslavia
Aleksandar D. Aleksić ; Zavod za fiziku, Farmaceutski fakultet, Univerzitet u Beogradu, Dr Subotića 8, 11000 Beograd, Yugoslavia
Boško J. Drašković ; Zavod za fiziku, Farmaceutski fakultet, Univerzitet u Beogradu, Dr Subotića 8, 11000 Beograd, Yugoslavia
Kosta I. Nikolić ; Zavod za fiziku, Farmaceutski fakultet, Univerzitet u Beogradu, Dr Subotića 8, 11000 Beograd, Yugoslavia

Abstract

Excitation and emission luminescence spectra of compound formed from manganese(II) chloride and 2,6-dimethylpiperidine hydrochloride are determined. The Crystal Field Theory (CFT) is applied to the excitation spectra, and the Racah parameters B and C and the value of the crystal field strength parameter Dq are determined. The emission spectrum parameters are determined according to the Configurational Curves Theory (CCT). It is shown that the centre of luminescence is the complex anion (MnCl4)2-, that its structure is tetrahedral and that the emission process is phosphorescence. The covalency parameter is determined which shows that the metal-ligand bonds of this complex anion are not purely ionic.

Keywords

Hrčak ID:

331453

URI

https://hrcak.srce.hr/331453

Publication date:

5.12.1988.

Article data in other languages: serbian

Visits: 494 *