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Organoelement Compounds Crystallized In Situ: Weak Intermolecular Interactions and Lattice Energies

A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Science, 28 Vavilova str., Moscow 119991, Russia
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Crystals 2020, 10(1), 15; https://doi.org/10.3390/cryst10010015
Received: 20 November 2019 / Revised: 24 December 2019 / Accepted: 26 December 2019 / Published: 31 December 2019
(This article belongs to the Special Issue Chemical Bonding in Crystals and Their Properties)
The in situ crystallization is the most suitable way to obtain a crystal of a low-melting-point compound to determine its structure via X-Ray diffraction. Herein, the intermolecular interactions and some crystal properties of low-melting-point organoelement compounds (lattice energies, melting points, etc.) are discussed. The discussed structures were divided into two groups: organoelement compounds of groups 13–16 and organofluorine compounds with other halogen atoms (Cl, Br, I). The most of intermolecular interactions in the first group are represented by weak hydrogen bonds and H···H interactions. The crystal packing of the second group of compounds is stabilized by various interactions between halogen atoms in conjunction with hydrogen bonding and stacking interactions. The data on intermolecular interactions from the analysis of crystal packing allowed us to obtain correlations between lattice energies and Hirshfeld molecular surface areas, molecular volumes, and melting points. View Full-Text
Keywords: X-ray crystallography; in situ crystallization; Hirshfeld surface analyzes; lattice energies; intermolecular interactions; packing motifs; polymorph stability X-ray crystallography; in situ crystallization; Hirshfeld surface analyzes; lattice energies; intermolecular interactions; packing motifs; polymorph stability
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Volodin, A.D.; Korlyukov, A.A.; Smol’yakov, A.F. Organoelement Compounds Crystallized In Situ: Weak Intermolecular Interactions and Lattice Energies. Crystals 2020, 10, 15.

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