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Original scientific paper

The photoexcitation and photoluminescence of the crystalline tetrahedral complex compound of manganese(II) chloride with 3.5-lutidine hydrochloride

I. Burić ; Institute of Physics, Beograd
K. Nikolić ; Institute of Physics, Beograd
B. Drašković ; Institute of Physics, Beograd


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Abstract

Two photoluminescent crystalline complex compounds of MnCl2 with 3,5-lutidine hydrochloride were synthetized, wherein the Mn2 + ion is in tetrahedral (green luminescence) and octahedral symmetry (red luminescence). In the present work the experimental and theoretical results on the energy structure of the tetrahedral complex are reported. The excitation spectrum was recorded and all the ligand field excitation bands were identified for Mn2 + in tetrahedral symmetry. The Racah parameters B and C, the secular determinants for d5 quartet levels, the ground terms (10 Dq = 0) and the field strength of this complex were calculated. Also the luminescence emission spectrum was recorded and the effect of temperature on its basic parameters was analyzed. A configurational coordinate diagram is given for the ground state 6A1(S) and for the lowest excited state 4T1(G).

Keywords

Hrčak ID:

323229

URI

https://hrcak.srce.hr/323229

Publication date:

28.11.1977.

Article data in other languages: serbian

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