Nziko VDPN, Scheiner S. Comparison of π-hole tetrel bonding with σ-hole halogen bonds in complexes of XCN (X = F, Cl, Br, I) and NH3.
Phys Chem Chem Phys 2016;
18:3581-90. [DOI:
10.1039/c5cp07545a]
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Abstract
In addition to the standard halogen bond formed when NH3approaches XCN (X = F, Cl, Br, I) along its molecular axis, a perpendicular approach is also possible, toward a π-hole that is present above the X–C bond.
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