Search results for "tetra­chloro­benzene isomers"

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Melting point, molecular symmetry and aggregation of tetrachlorobenzene isomers: the role of halogen bonding

2018

Tetrachlorobenzenes represent one of the best known, but not yet fully understood, group of isomers of the structure–melting point relationship. The differences in melting temperatures of these structurally related compounds were rationalized in terms of the hierarchy and nature of formed noncovalent interactions, and the molecular aggregation that is influenced by molecular symmetry. The highest melting point is associated with the highly symmetric 1,2,4,5-tetrachlorobenzene isomer. The structures of less symmetrical 1,2,3,4-tetrachlorobenzene and 1,2,3,5-tetrachlorobenzene, determined at 270 and 90 K, show a distinct pattern of halogen bonds, characterized by the different numbers and typ…

melting pointEnthalpy02 engineering and technology010402 general chemistry01 natural sciencesGroup (periodic table)Materials ChemistryMolecular symmetryNon-covalent interactionschemistry.chemical_classificationHalogen bondstructure–property relationsIntermolecular forceMetals and Alloys021001 nanoscience & nanotechnologytetra­chloro­benzene isomersAtomic and Molecular Physics and Optics0104 chemical sciencesElectronic Optical and Magnetic Materialsmolecular symmetryCrystallographychemistryhalogen bondingHalogenMelting point0210 nano-technologyActa Crystallographica Section B Structural Science, Crystal Engineering and Materials
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