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Antimony(III) Iodide Complexes with Pyridine: Structures and bonding via three pnictogen bonds
Author(s) -
Pomogaeva Anna V.,
Khoroshilova Olesya V.,
Davydova Elena I.,
Suslonov Vitalii V.,
Timoshkin Alexey Y.
Publication year - 2021
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.202000444
Subject(s) - pnictogen , antimony , crystallography , iodide , octahedron , chemistry , molecular geometry , van der waals radius , crystal structure , van der waals force , inorganic chemistry , physics , condensed matter physics , molecule , superconductivity , organic chemistry
Solid state structures of five new molecular complexes of SbI 3 with Py have been determined by single crystal X‐ray structural analysis. In all complexes, all antimony atoms adopt a pseudo‐octahedral coordination geometry, which is completed by additional Sb⋅⋅⋅I contacts shorter than sum of van der Waals radii, with I−Sb⋅⋅⋅I angles close to 180°. Analysis of the electrostatic potentials, the orbital interactions and topological analysis indicate that these contacts are due to the presence of Sb⋅⋅⋅I pnictogen bonds. The first example of three pnictogen bonds of SbI 3 is reported.