{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,9]],"date-time":"2025-11-09T10:55:34Z","timestamp":1762685734401,"version":"build-2065373602"},"reference-count":53,"publisher":"MDPI AG","issue":"22","license":[{"start":{"date-parts":[[2022,11,21]],"date-time":"2022-11-21T00:00:00Z","timestamp":1668988800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Natural Science Foundation of Science and Technology Department of Guizhou Province","award":["[2019]1297"],"award-info":[{"award-number":["[2019]1297"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Molecules"],"abstract":"<jats:p>Halogen bonds play an important role in many fields, such as biological systems, drug design and crystal engineering. In this work, the structural characteristics of the halogen bond between heteronuclear halogen XD (ClF, BrCl, IBr, ICl, BrF and IF) and benzene were studied using density functional theory. The structures of the complexes between heteronuclear halogen and benzene have Cs symmetry. The interaction energies of the complexes between heteronuclear halogen XD (ClF, BrCl, IBr, ICl, BrF and IF) and benzene range from \u221227.80 to \u221237.18 kJ\/mol, increasing with the increases in the polarity between the atoms of X and D, and are proportional to the angles of a between the Z axis and the covalent bond of heteronuclear halogen. The electron density (\u03c1) and corresponding Laplacian (\u22072\u03c1) values indicate that the interaction of the heteronuclear halogen and benzene is a typical long-range weak interaction similar to a hydrogen bond. Independent gradient model analysis suggests that the van der Waals is the main interaction between the complexes of heteronuclear halogen and benzene. Symmetry-adapted perturbation theory analysis suggests that the electrostatic interaction is the dominant part in the complexes of C6H6\u22efClF, C6H6\u22efICl, C6H6\u22efBrF and C6H6\u22efIF, and the dispersion interaction is the main part in the complexes of C6H6\u22efBrCl, C6H6\u22efIBr.<\/jats:p>","DOI":"10.3390\/molecules27228078","type":"journal-article","created":{"date-parts":[[2022,11,21]],"date-time":"2022-11-21T04:33:32Z","timestamp":1669005212000},"page":"8078","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["A Theoretical Study of the Halogen Bond between Heteronuclear Halogen and Benzene"],"prefix":"10.3390","volume":"27","author":[{"given":"Jun","family":"Luo","sequence":"first","affiliation":[{"name":"Qiannan Key Laboratory of Biomass-Based Functional Carbon Materials Based on Agricultural and Forestry Wastes, Qiannan Normal University for Nationalities, Duyun 558000, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hongjing","family":"Dai","sequence":"additional","affiliation":[{"name":"Qiannan Key Laboratory of Biomass-Based Functional Carbon Materials Based on Agricultural and Forestry Wastes, Qiannan Normal University for Nationalities, Duyun 558000, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chenglu","family":"Zeng","sequence":"additional","affiliation":[{"name":"Qiannan Key Laboratory of Biomass-Based Functional Carbon Materials Based on Agricultural and Forestry Wastes, Qiannan Normal University for Nationalities, Duyun 558000, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Dawang","family":"Wu","sequence":"additional","affiliation":[{"name":"Qiannan Key Laboratory of Biomass-Based Functional Carbon Materials Based on Agricultural and Forestry Wastes, Qiannan Normal University for Nationalities, Duyun 558000, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maoqi","family":"Cao","sequence":"additional","affiliation":[{"name":"Qiannan Key Laboratory of Biomass-Based Functional Carbon Materials Based on Agricultural and Forestry Wastes, Qiannan Normal University for Nationalities, Duyun 558000, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2022,11,21]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"723","DOI":"10.1007\/s00894-008-0386-9","article-title":"Expansion of the \u03c3-hole concept","volume":"15","author":"Murray","year":"2009","journal-title":"J. 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