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‘2E−2N squares’: Chalcogen (E=S, Se and Te) Bonding Involving Benzochalcogenodiazoles

Von Wiley-VCH zur Verfügung gestellt

This review article summarizes the chalcogen (S, Se and Te) bonding involved in supramolecular network formation of molecular scaffold having benzochalcogenodiazole. Benzochalcogenodiazole is a well-studied electron acceptor moiety for designing the π-conjugated materials for organic electronics application. So this article will give ideas for the design molecular scaffold with controllable solid state packing through tuning of chalcogen bonding.


Several intra and intermolecular interactions (secondary bonding interactions, SBIs) such as halogen bonding (XB), hydrogen bonding (HB) have great impact on crystal engineering, from catalysis to material and pharmaceutical applications. With respect to other interactions chalcogen (S, Se and Te) bonding (ChB) is less explored until very recently, although it has great potential to evolve in larger domain. In literature there are several reports on ChB and their roles in solid-state packing of molecular materials having benzochalcogenodiazole as an active moiety applicable in organic electronics. Some important and informative reviews on ChB and their various applications in catalysis and structural properties relationship were also presented. Here purpose of this review is to summarize the ChB involved in π-conjugated molecular system having benzochalcogenodiazole to form ‘2E−2N square’ which seems to be very important supramolecular synthon involving ChB.

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