title: Tetrel Bonding Interactions.
abstract: Tetrel (Tr) bonding is first placed into perspective as a σ-hole bonding interaction with atoms of the Tr family. An sp(3) R4Tr unit has four σ-holes with which a Lewis base can form a complex. We then highlight some inspiring crystal structures where Tr bonding is obvious, followed by an account of our own work. We have shown that Tr bonding is ubiquitous in the solid state and we have highlighted that Tr bonding with carbon is possible when C is placed in the appropriate chemical context. We hope that this account serves as an initial guide and source of inspiration for others wishing to exploit this vastly underexplored interaction.
authors.affiliation: Departament de Química, Universitat de les Illes Balears, Crta. de Valldemossa km 7.5, 07122, Palma de Mallorca, Baleares, Spain.
authors.forename: Antonio
authors.initials: A
authors.lastname: Bauzá
authors.affiliation: School of Chemistry, The University of Bristol, Cantock's Close, BS8 1TS, Bristol, UK.
authors.forename: Tiddo J
authors.initials: TJ
authors.lastname: Mooibroek
authors.affiliation: Departament de Química, Universitat de les Illes Balears, Crta. de Valldemossa km 7.5, 07122, Palma de Mallorca, Baleares, Spain.
authors.forename: Antonio
authors.initials: A
authors.lastname: Frontera
keywords: CSD analysis; ab initio calculations; carbon bonding; noncovalent interactions