4.4 Article

Synthesis and Characterization of a Series of Diarylgermylenes and Dihalodigermenes Having Fused-Ring Bulky Rind Groups

Journal

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN
Volume 94, Issue 7, Pages 1931-1939

Publisher

CHEMICAL SOC JAPAN
DOI: 10.1246/bcsj.20210142

Keywords

Germanium; Germylenes; Digermenes

Funding

  1. JSPS KAKENHI [JP15H03788, 18K05160, 2408, JP20109003, JP15H00964]
  2. MEXT-Supported Program for the Strategic Research Foundation at Private Universities 2014-2018 from MEXT
  3. Kindai University
  4. JSPS [18F18036]
  5. Collaborative Research Program of Institute for Chemical Research, Kyoto University [2016-94, 2017-99, 2018-110, 2019-120, 2020-126]
  6. Grants-in-Aid for Scientific Research [18F18036, 18K05160] Funding Source: KAKEN

Ask authors/readers for more resources

A series of diarylgermylenes with different fused-ring bulky groups have been synthesized and investigated for their crystal structures and electronic properties, including dimeric and monomeric forms in solution.
A series of diarylgermylenes, (Rind)(2)Ge: (1) [Rind = EMind (a), Eind (b), and MPind (c)], bearing the fused-ring bulky 1,1,3,3,5,5,7,7-octa-R-s-hydrindacen-4-yl (Rind) groups has been obtained as purple to blue crystals by the reaction of GeCl2 center dot dioxane with 2 equiv. of (Rind)Li. A similar reaction using 1 equiv. of (Rind)Li affords the 1,2-dibromodigermenes, (Rind)BrGe=GeBr(Rind) (2) [Rind = Eind (b) and MPind (c)], as yellow to orange crystals. The ligand redistribution reaction between 1 and GeCl2 center dot dioxane in toluene leads to the formation of the 1,2-dichlorodigermenes, (Rind)ClGe=GeCl(Rind) (3) [Rind = EMind (a), Eind (b), and MPind (c)]. The molecular structures of 1a, 1c, 2c, and 3c have been newly determined by X-ray crystallographic analysis. The 1,2-dihalodigermenes, (Rind)XGe=GeX(Rind) [X = Br (2) and Cl (3)], show a dimeric form with a Ge=Ge double bond in the solid state, but exist as a monomeric halogermylene, (Rind)XGe: [X = Br (4) and Cl (5)], in solution. The electronic properties of the Rind-based diarylgermylenes, dihalodigermenes, and halogermylenes have been experimentally and theoretically investigated.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.4
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available