Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 26, Issue 13, Pages 2904-2913Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201904762
Keywords
chalcogen-bonding; crystal engineering; halogen-bonding; self-assembly; supramolecular chemistry
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Funding
- Cardiff University
- EU through the MSCA-RISE
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The engineering of crystalline molecular solids through the simultaneous combination of distinctive non-covalent interactions is an important field of research, as it could allow chemist to prepare materials depicting multi-responsive properties. It is in this context that, pushed by a will to expand the chemical space of chalcogen-bonding interactions, a concept is put forward for which chalcogen- and halogen-bonding interactions can be used simultaneously to engineer multicomponent co-crystals. Through the rational design of crystallizable molecules, chalcogenazolo pyridine scaffold (CGP) modules were prepared that, bearing either a halogen-bond acceptor or donor at the 2-position, can interact with suitable complementary molecular modules undergoing formation of supramolecular polymers at the solid state. The recognition reliability of the CGP moiety to form chalcogen-bonded dimers allows the formation of heteromolecular supramolecular polymers through halogen-bonding interactions, as confirmed by single-crystal X-ray diffraction analysis.
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