有机化学 ›› 2019, Vol. 39 ›› Issue (6): 1557-1567.DOI: 10.6023/cjoc201903043 上一篇    下一篇

所属专题: 元素有机化学合辑2018-2019 金属有机化学

综述与进展

碱土金属有机氢化物的研究进展

石向辉a, 刘知洲a,b, 程建华a,b   

  1. a 中国科学院长春应用化学研究所 高分子物理与化学国家重点实验室 长春 130022;
    b 中国科学技术大学应用化学与工程学院 合肥 230029
  • 收稿日期:2019-03-21 修回日期:2019-04-23 发布日期:2019-05-06
  • 通讯作者: 程建华 E-mail:jhcheng@ciac.ac.cn
  • 基金资助:

    国家自然科学基金(No.21672202)及中国科学院"百人计划"资助项目.

Research Progress of Molecular Alkaline-Earth Metal Hydrides

Shi Xianghuia, Liu Zhizhoua,b, Cheng Jianhuaa,b   

  1. a State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022;
    b College of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230029
  • Received:2019-03-21 Revised:2019-04-23 Published:2019-05-06
  • Contact: 10.6023/cjoc201903043 E-mail:jhcheng@ciac.ac.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (No. 21672202) and the "Hundred Talent Program" of Chinese Academy of Sciences.

碱土金属(Mg,Ca,Sr,Ba)越来越引起大家的兴趣,这是由于它们价格低廉、无毒,可以替代许多有机催化和化学计量反应中昂贵的过渡金属.随着碱土金属离子半径的增大(Mg2+2+2+2+),碱土金属有机氢化物的离子性以及键长增加,键能降低,相应的金属氢化物更易发生Schlenk重排生成不溶无机盐[AeH2](Ae=Mg,Ca,Sr,Ba),限制了其发展.近年来,人们通过选择合适的配体,合成并表征了一系列碱土金属有机氢化物,择优研究了它们与小分子的有机反应.碱土金属有机氢化物研究的最新进展将被详细介绍.

关键词: 碱土金属, 金属氢化物, 反应性, 研究进展

Alkaline-earth metals continue to receive growing interest, as they are used as low-cost and non-toxic alternatives to transition-metals in various organic transformations. As ionic character and bond lengths increase along the row in the order Mg2+2+2+2+, bond energies decrease along the same row, the corresponding metal hydrides are apt to the formation of insoluble metal hydrides[AeH2] (Ae=Mg, Ca, Sr, Ba) through Schlenk equilibrium in solution. Recently, a series of alkaline-earth metal hydrides stabilized by suitable ligands were discovered and characterized, and stoichiometric and catalytic reactions with small molecules were studied as well. In this paper, the recent progress in molecular alkaline-earth metal hydrides is reviewed.

Key words: alkaline-earth metals, metal hydride, reactivity, research progress