Origins and Properties of the Tetrel Bond
Author ORCID Identifier
Steve Scheiner https://orcid.org/0000-0003-0793-0369
Physical Chemistry Chemical Physics
Royal Society of Chemistry
NSF, Division of Chemistry (CHE) 1954310
NSF, Division of Chemistry (CHE)
The tetrel bond (TB) recruits an element drawn from the C, Si, Ge, Sn, Pb family as electron acceptor in an interaction with a partner Lewis base. The underlying principles that explain this attractive interaction are described in terms of occupied and vacant orbitals, total electron density, and electrostatic potential. These principles facilitate a delineation of the factors that feed into a strong TB. The geometric deformation that occurs within the tetrel-bearing Lewis acid monomer is a particularly important issue, with both primary and secondary effects. As a first-row atom of low polarizability, C is a reluctant participant in TBs, but its preponderance in organic and biochemistry make it extremely important that its potential in this regard be thoroughly understood. The IR and NMR manifestations of tetrel bonding are explored as spectroscopy offers a bridge to experimental examination of this phenomenon. In addition to the most common σ-hole type TBs, discussion is provided of π-hole interactions which are a result of a common alternate covalent bonding pattern of tetrel atoms.
Scheiner, Steve. “Origins and Properties of the Tetrel Bond.” Physical Chemistry Chemical Physics, vol. 23, no. 10, 2021, pp. 5702–17. DOI.org (Crossref), https://doi.org/10.1039/D1CP00242B.