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Li6E5Li6: Tetrel Sandwich Complexes with 10‐π‐Electrons.

Authors :
Inostroza, Diego
Leyva‐Parra, Luis
Pino‐Rios, Ricardo
Solar‐Encinas, José
Vásquez‐Espinal, Alejandro
Pan, Sudip
Merino, Gabriel
Yañez, Osvaldo
Tiznado, William
Source :
Angewandte Chemie International Edition; 1/25/2024, Vol. 63 Issue 5, p1-7, 7p
Publication Year :
2024

Abstract

When (4n +2) π‐electrons are located in single planar ring, it conventionally qualifies as aromatic. According Hückel's rule, systems possessing ten π‐electrons should be aromatic. Herein we report a series of D5h Li6E5Li6 sandwich structures, representing the first global minima featuring ten π‐electrons E510− ring (E=Si−Pb). However, these π‐electrons localize as five π‐lone‐pairs rather than delocalized orbitals. The high symmetry structure achieved is a direct consequence of σ‐aromaticity, particularly favored in elements from Si to Pb, resulting in a pronounced diatropic ring current flow that contributes to the enhanced stability of these systems. [ABSTRACT FROM AUTHOR]

Subjects

Subjects :
SANDWICH construction (Materials)

Details

Language :
English
ISSN :
14337851
Volume :
63
Issue :
5
Database :
Complementary Index
Journal :
Angewandte Chemie International Edition
Publication Type :
Academic Journal
Accession number :
174912200
Full Text :
https://doi.org/10.1002/anie.202317848