季膦盐合成实验的改进与拓展——水相一步法合成乙基三苯基溴化膦及其力致发光锰配合物的制备及表征

doi:10.12461/PKU.DXHX202510018

Abstract

Abstract: In response to China’s “101 Plan” for cultivating top-tier innovative talents in fundamental disciplines, this study addresses key limitations in traditional phosphonium salt synthesis experiments, including high solvent toxicity, lengthy reaction times, and poor operational experience. We developed an environmentally friendly aqueous one-step synthesis method for ethyltriphenylphosphonium bromide, eliminating toxic solvents while reducing reaction time to 2.5 h and improving yield to 75%. The synthesized phosphonium salt was subsequently used to prepare a mechanoluminescent manganese complex. The pedagogical design incorporates two modules: a foundational experiment (5.5 credit hours) and an advanced comprehensive experiment (9.5 credit hours), establishing an integrated experimental teaching system. This work transforms a conventional experiment into an interdisciplinary, practical, and cutting-edge comprehensive experiment, providing valuable insights for developing high-quality core experimental courses.

Key words: One-step method, Green synthesis, Phosphonium salt, Nucleophilic substitution, Mechanoluminescence

Ranhui Fu, Shixin Zhou, Ran Ji, Feifei Gao, Hui Xu. Innovation and extension of phosphonium salt synthesis: aqueous one-step synthesis of ethyltriphenylphosphonium bromide and preparation and characterization of its mechanoluminescent manganese complex[J].University Chemistry, 2026, 41(5): 252-263.

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Innovation and extension of phosphonium salt synthesis: aqueous one-step synthesis of ethyltriphenylphosphonium bromide and preparation and characterization of its mechanoluminescent manganese complex

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