Journal of Jishou University(Natural Sciences Edition) ›› 2021, Vol. 42 ›› Issue (6): 36-40.DOI: 10.13438/j.cnki.jdzk.2021.06.006

• Chemistry and chemical engineering • Previous Articles     Next Articles

Synthesis, Structure, and Photoluminescence Properties of Mn(II)-Based Metal Complex

LIANG Yuxin, GAO Huizhi, WANG Xingyue, QI Zhikai   

  1. (Shanxi Normal University, Linfen 041004, Shanxi China)
  • Online:2021-11-25 Published:2022-01-21

Abstract: A novel Mn-based complex of Mn(choline)Cl3 (choline=C5H14NO) was synthesized by solvent evaporation. Single crystal X-ray diffraction analysis shows that the crystal structure of this complex consists of one-dimensional chains formed by the edge-shared [MnCl5O] octahedra, and these chains link each other with the adjacent ones into a three-dimensional network through intermolecular hydrogen bonds.UV-vis absorption spectrum and photoluminescence spectrum shows that this complex exhibited high efficient red-light emission induced by the d-d electron transition of (t2g)3(eg) to (t2g)4(eg)1. The photoluminescence quantum yield reaches to 37.32% and the average lifetime is 1.18 ms. In addition, it has excellent thermal stability (300 ℃). These results show that this Mn-based complex has potential applications in the field of optoelectronic devices.

Key words: Mn(II) complex, photoluminescence, crystal structure, d-d transition

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