On the importance of halogen–halogen interactions in the solid state of fullerene halides: A combined theoretical and crystallographic study

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Abstract

In this manuscript, we combined DFT (Density Functional Theory) calculations (BP86-D3/def2-TZVP level of theory) and a search in the CSD (Cambridge Structural Database) to analyze the role of halogen–halogen interactions in the crystal structure of fullerene halides. We have used a theoretical model of a halogenated C60 and evaluated the formation of halogen–halogen complexes between F, Cl, Br and I derivatives. In addition, we also carried out AIM (Atoms in Molecules) and NBO (Natural Bonding Orbital) analyses to further describe and characterize the interactions described herein. Finally, we have carried out a search in the CSD and found several X-ray structures where these interactions are present and important in governing the crystal packing of the fullerene halides, thus giving reliability to the results derived from the calculations.

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Bauzá, A., & Frontera, A. (2017). On the importance of halogen–halogen interactions in the solid state of fullerene halides: A combined theoretical and crystallographic study. Crystals, 7(7). https://doi.org/10.3390/cryst7070191

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