Polymorphism and π Stacking Affect Thermal Expansion Behavior in Halogen-Bonded Cocrystals Based on 1,4-Diiodoperchlorobenzene
Gary C. George III,
Mahshad Karimi,
Navkiran Juneja
et al.
Abstract:The thermal expansion behavior of a series of halogen-bonded cocrystals containing 1,4-diiodoperchlorobenzene as the donor is described. Two of the solids are polymorphs and contain 4-stilbazole as the acceptor, while the third solid contains 4-(phenylethynyl)pyridine as the acceptor, and this solid is isostructural with one of the polymorphs. All solids are sustained by I•••N halogen bonds, and the least thermal expansion occurs along this direction in all solids. The polymorphs exhibit significant difference… Show more
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