Tridentate Ligand with Three Carbanions as Donor Atoms: Formation of Dinuclear, Heptacyclic Complexes of Boron, Aluminum, or Gallium with B-C-B, Al-C-Al, or Ga-C-Ga Three-Center-Two-Electron Bonds

被引：0

作者：

Brand, Alexander ^{[1
]}

Hepp, Alexander ^{[1
]}

Wuerthwein, Ernst-Ulrich ^{[2
,3
]}

Uhl, Werner ^{[1
]}

机构：

[1] Univ Munster, Inst Anorgan & Analyt Chem, D-48149 Munster, Germany

[2] Univ Munster, Organ Chem Inst, D-48149 Munster, Germany

[3] Univ Munster, CMTC, D-48149 Munster, Germany

来源：

INORGANIC CHEMISTRY | 2020年 / 59卷 / 08期

关键词：

SOLID-STATE STRUCTURES; CRYSTAL-STRUCTURE; TRIMETHYLALUMINUM DIMER; ORGANOELEMENT COMPOUNDS; MOLECULAR-STRUCTURE; METHYL; SYSTEMS;

D O I：

10.1021/acs.inorgchem.0c00254

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The trilithium compound 1,3-[PhMe2Si-C(Li)=C(H)](2)C6H3Li (2b) reacted with BCl3, AlCl3, or GaCl3 by salt elimination to yield dinuclear heptacyclic compounds (4). Two tridentate tricarbanionic ligands coordinate two B, Al, or Ga atoms and adopt a helical arrangement of the ligands around a central E-2 unit. The unusual structures comprise E2C2 heterocycles with two 3c-2e (three-center-two-electron) E-C-E bonds and two C atoms of aromatic rings in the bridging positions. While such a bonding situation is well-documented in AI chemistry, it is rare for B and Ga compounds. Insight into the bonding situation of the molecules is provided by DFT calculations.

引用

页码：5558 / 5563

页数：6