A Tetra-amido-Protected Ge5-Spiropentadiene

Yan Guo; Zhengqiang Xia; Jingjing Liu; Jiaxiu Yu; Shenglai Yao; Weiqun Shi; Kongqiu Hu; Sanping Chen; Yaoyu Wang; Anyang Li; Matthias Driess; Wenyuan Wang

doi:10.1021/jacs.9b10946

A Tetra-amido-Protected Ge₅-Spiropentadiene

J Am Chem Soc. 2019 Dec 11;141(49):19252-19256. doi: 10.1021/jacs.9b10946. Epub 2019 Nov 26.

Authors

Affiliations

¹ Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science , Northwest University , Xi'an , Shaanxi 710069 , China.
² Metalorganics and Inorganic Materials, Department of Chemistry , Technische Universität Berlin , Straße des 17, Juni 135, Sekr. C2 , 10623 Berlin , Germany.
³ Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics , Chinese Academy of Sciences , Beijing 100049 , China.

PMID: 31762282
DOI: 10.1021/jacs.9b10946

Abstract

The first isolable Ge₅-spiropentadiene 1 was synthesized via the reduction of (ⁱPr₃Si)₂NGeCl (3) with potassium. The crystal structure of 1 reveals a spirocyclic Ge₅ skeleton containing two Ge-Ge double bonds (avg. 2.34 Å), which are fettered in two Ge₃ rings with a dihedral angle of 70.193°. The DFT calculations and orbital analysis show that the σ-delocalization of the Ge₅ skeleton and the 2π-delocalized aromatic Ge₃ rings enhance the stability of molecule 1.

Publication types

Research Support, Non-U.S. Gov't