Issue 21, 2023

A crystalline T-shaped planar group 14 anion

Abstract

Isolable T-shaped planar pnictogen compounds R3Pn were reported more than three decades ago and have been attracting burgeoning interest in recent years; T-shaped planar group 14 anions, isoelectronic to R3Pn, however, are still unknown. Herein, we report the synthesis, full characterization, and reactivity of the first crystalline T-shaped planar group 14 anion 4 bearing a trinitrogen pincer ligand. DFT calculations indicate that the tricoordinate germanium center features both an unoccupied 4p orbital and two lone pairs of electrons. Its electron-rich nature allows for the nucleophilic attack on the methyl iodine giving methyl-substituted complex 5 and facile oxidation of the germanium center by elemental sulfur and selenium to furnish unpresented organic anions bearing terminal Ge[double bond, length as m-dash]Ch (Ch = S or Se) double bonds.

Graphical abstract: A crystalline T-shaped planar group 14 anion

Supplementary files

Article information

Article type
Edge Article
Submitted
22 Dec. 2022
Accepted
11 Apr. 2023
First published
03 Maijs 2023
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY-NC license

Chem. Sci., 2023,14, 5722-5727

A crystalline T-shaped planar group 14 anion

X. Liu, Y. Dai, M. Bao, W. Wang, Q. Li, C. Liu, X. Wang and Y. Su, Chem. Sci., 2023, 14, 5722 DOI: 10.1039/D2SC07006E

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