Polymorphism of a porous hydrogen bond assisted ionic organic framework

Dániel Vajk Horváth, Tamás Holczbauer,* Laura Bereczki, Roberta Palkó, Nóra Veronika May, Tibor Soós and Petra Bombicz 

CrystEngComm (2018), accepted for publication

The polymorphism of a porous, non-covalently bonded ionic organic framework is reported. The framework is constructed by hydrogen bonding and anion⋯π interactions. In a solvatomorphic lattice, pyridine takes part in the framework formation. The role of molecular rigidity in framework construction is proven by analogous non-porous crystals, where polymorphism also appears.

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