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Abstract <p>Biphosphonium tetraiodomanganate(II) [DPEPhosMe<sub>2</sub>]MnI<sub>4</sub> has been synthesized by the reaction of MnI<sub>2</sub> with bis(phosphonium) salt [DPEPhosMe<sub>2</sub>]I<sub>2</sub>, which is prepared by the alkylation of DPEPhos with methyl iodide. At ambient temperature, polycrystalline samples of [DPEPhosMe<sub>2</sub>]MnI<sub>4</sub> exhibit bright green phosphorescence (λ<sub>max</sub> = 546 nm) with a quantum yield of 77%. The phosphorescence decay lifetime is 45 μs, which is rather short for Mn<sup>2+</sup>-centered phosphorescence.</p>

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New Tetraiodomanganate(II) with Highly Efficient Short-Lived Phosphorescence

  • 期刊论文

  • 发表日期：

    2025年3月1日

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  • M. P. Davydova,
  • I. Yu. Bagryanskaya,
  • A. S. Berezin,
  • V. A. Kuimov,
  • A. V. Artem’ev

摘要

Abstract

Biphosphonium tetraiodomanganate(II) [DPEPhosMe2]MnI4 has been synthesized by the reaction of MnI2 with bis(phosphonium) salt [DPEPhosMe2]I2, which is prepared by the alkylation of DPEPhos with methyl iodide. At ambient temperature, polycrystalline samples of [DPEPhosMe2]MnI4 exhibit bright green phosphorescence (λmax = 546 nm) with a quantum yield of 77%. The phosphorescence decay lifetime is 45 μs, which is rather short for Mn2+-centered phosphorescence.