高等学校化学学报 ›› 2014, Vol. 35 ›› Issue (8): 1720.doi: 10.7503/cjcu20140327

• 物理化学 • 上一篇    下一篇

Cp2M2(μ-B4N4H8)(M=V,Cr,Mn,Fe)金属多重键成键性质的理论研究

刘楠楠1(), 丁益宏2()   

  1. 1. 哈尔滨商业大学食品工程学院化学中心, 哈尔滨 150076
    2. 吉林大学理论化学研究所, 理论化学计算国家重点实验室, 长春 130021
  • 收稿日期:2014-04-08 出版日期:2014-08-10 发布日期:2019-08-01
  • 作者简介:联系人简介: 刘楠楠, 女, 博士, 讲师, 主要从事理论化学研究. E-mail: liunann.yl@gmail.com 丁益宏, 男, 博士, 教授, 博士生导师, 主要从事理论化学研究. E-mail: yhdd@jlu.edu.cn
  • 基金资助:
    基金项目:国家自然科学基金(批准号: 21301041, 21273093)和黑龙江省自然科学基金(批准号: B201409)资助.

Theoretical Studies on the Bonding Properties of Metal-metal Multiple Bond of Cp2M2(μ-B4N4H8)(M=V,Cr,Mn,Fe)

LIU Nannan1,*(), DING Yihong2,*()   

  1. 1. Chemistry Center, College of Food Engineering, Harbin University of Commerce, Harbin 150076, China
    2. State Key Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun 130021, China
  • Received:2014-04-08 Online:2014-08-10 Published:2019-08-01
  • Contact: LIU Nannan,DING Yihong E-mail:liunann.yl@gmail.com;yhdd@jlu.edu.cn
  • Supported by:
    Supported by the National Natural Science Foundation of China(Nos. 21301041, 21273093) and the Natural Science Foundation of Heilongjiang Province, China(No.B201409).

摘要:

对金属多重键配合物Cp2M2(μ-B4N4H8)(M=V, Cr, Mn, Fe)的结构和成键进行了理论研究, 并与Cp2M2(μ-C8H8)进行对比. 计算结果表明, 在Cp2M2(μ-B4N4H8)基态构型中, B4N4H8配体均以硼为桥原子, 金属原子的配位数均为5. 其中, Cp2M2(μ-B4N4H8)(M=V, Cr, Mn)基态的结构和成键都与Cp2M2(μ-C8H8)非常接近; 而Cp2Fe2(μ-B4N4H8)基态结构与Fe为4配位的Cp2Fe2(μ-C8H8)有所不同. Cp2M2(μ-B4N4H8)(M=V, Cr, Mn, Fe)基态结构分别为含V-V三重键的三态、 含Cr-Cr三重键的单态、 含Mn-Mn双键的三态及含Fe-Fe单键的单态.

关键词: 硼氮化合物, 环辛四烯(C8H8), 金属-金属多重键, 环硼氮烷(BnNnH2n)

Abstract:

The geometry and bonding of metal-metal multiple bond complexes Cp2M2(μ-B4N4H8)(M=V, Cr, Mn, Fe) were theoretically investigated and compared with Cp2M2(μ-C8H8). The calculated results show that in the ground states of Cp2M2(μ-B4N4H8), the ligands B4N4H8 are all with B bridging atoms, the coordination numbers of M atom are all five. Among them, the structure and bonding of ground state of Cp2M2(μ-B4N4H8)(M=V, Cr, Mn) are very close to Cp2M2(μ-C8H8); while the ground state of Cp2Fe2(μ-B4N4H8) is different with Cp2Fe2(μ-C8H8) containing four-coordinated Fe. The ground-states of Cp2M2(μ-B4N4H8)(M=V, Cr, Mn, Fe) are respectively triplet state with V-V triple bond, singlet state with Cr-Cr triple bond, triplet state with Mn-Mn double bond, and singlet state with Fe-Fe single bond.

Key words: Boron-nitrogen compound, Cyclooctatetraene(C8H8), Metal-metal multiple bond, Borazine(BnNnH2n)

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