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    Online Resource
    Online Resource
    Royal Society of Chemistry (RSC) ; 2023
    In:  Physical Chemistry Chemical Physics Vol. 25, No. 15 ( 2023), p. 10836-10844
    In: Physical Chemistry Chemical Physics, Royal Society of Chemistry (RSC), Vol. 25, No. 15 ( 2023), p. 10836-10844
    Abstract: Research on 2Ch⋯2N (Ch = S, Se, Te) square chalcogen interaction has attracted extensive attention in recent years. By search of the Crystal Structure Database (CSD), square chalcogen structures with 2Ch⋯2N interactions were widely found. Herein, dimers of 2,1,3-benzothiadiazole (C 6 N 2 H 4 S), 2,1,3-benzoselenadiazole (C 6 N 2 H 4 Se) and 2,1,3-benzotelluradiazole (C 6 N 2 H 4 Te) from CSD were chosen to construct a square chalcogen bond model. The square chalcogen bond and their adsorption behavior on Ag(110) surfaces have been systematically studied using first principles. Furthermore, partially fluoro-substituted C 6 N 2 H 3 FCh (Ch = S, Se, Te) complexes were also considered for comparison. The results show that in the C 6 N 2 H 4 Ch (Ch = S, Se, Te) dimer, the strength of the 2Ch⋯2N square chalcogen bond is in the order of S 〈 Se 〈 Te. In addition, the strength of the 2Ch⋯2N square chalcogen bond is also enhanced by F atom replacement in partially fluoro-substituted C 6 N 2 H 3 FCh (Ch = S, Se, Te) complexes. The self-assembly behavior of dimer complexes on silver surfaces is guided by van der Waals interactions. This work provides theoretical guidance for the application of 2Ch⋯2N square chalcogen bonds in supramolecular construction and materials science.
    Type of Medium: Online Resource
    ISSN: 1463-9076 , 1463-9084
    Language: English
    Publisher: Royal Society of Chemistry (RSC)
    Publication Date: 2023
    detail.hit.zdb_id: 1476283-3
    detail.hit.zdb_id: 1476244-4
    detail.hit.zdb_id: 1460656-2
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