Title

Controlling topology within halogen-bonded networks by varying the regiochemistry of the cyclobutane-based nodes

Abstract

The formation of a pair of extended networks sustained by halogen bonds based upon two regioisomers of a photoproduct, namely rctt-1,3-bis(4-pyridyl)-2,4-bis(phenyl)cyclobutane (ht-PP) and rctt-1,2-bis(4-pyridyl)-3,4-bis(phenyl)cyclobutane (hh-PP), that have varied topology is reported. These networks are held together via I· · · N halogen bonds between the photoproduct and the halogen-bond donor 1,4-diiodoperchlorobenzene (C6 I2 Cl4). The observed topology in each solid is controlled by the regiochemical position of the halogen-bond accepting 4-pyridyl group. This paper demonstrates the ability to vary the topology of molecular networks by altering the position of the halogen bond acceptor within the cyclobutane-based node.

Department(s)

Chemistry

Document Type

Article

DOI

https://doi.org/10.3390/molecules26113152

Keywords

Crystal engineering, Halogen bonding, Organic solid state, Topology

Publication Date

6-1-2021

Journal Title

Molecules

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