Fluorination promotes chalcogen bonding in crystalline solids

Susanta K. Nayak, Vijith Kumar, Jane S. Murray, Peter Politzer, Giancarlo Terraneo, Tullio Pilati, Pierangelo Metrangolo, Giuseppe Resnati

    Research output: Contribution to journalArticleScientificpeer-review

    34 Citations (Scopus)

    Abstract

    Single crystal X-ray analysis shows that intermolecular C-S⋯F chalcogen bonds are by far the shortest contacts in the crystal structure of 2,2,4,4-tetrafluoro-1,3-dithietane. Analysis of the molecular surface electrostatic potentials indicates that these contacts result from the attraction between the negative potentials of fluorines and the positive regions resulting from the overlapping of sulfur and carbon positive σ-holes. In contrast, the lattice structure of 2,2,4,4-tetrachloro-1,3-dithietane is controlled by intermolecular C-Cl⋯Cl halogen bonds. The lattices of the two systems are thus controlled by two different σ-hole interactions.
    Original languageEnglish
    Pages (from-to)4955-4959
    JournalCrystEngComm
    Volume19
    Issue number34
    DOIs
    Publication statusPublished - 1 Jan 2017
    MoE publication typeA1 Journal article-refereed

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