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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 (C6I2Cl4). 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.

SUBMITTER: Dunning TJ 

PROVIDER: S-EPMC8197507 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature

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Controlling Topology within Halogen-Bonded Networks by Varying the Regiochemistry of the Cyclobutane-Based Nodes.

Dunning Taylor J TJ   Unruh Daniel K DK   Bosch Eric E   Groeneman Ryan H RH  

Molecules (Basel, Switzerland) 20210525 11


The formation of a pair of extended networks sustained by halogen bonds based upon two regioisomers of a photoproduct, namely <i>rctt</i>-1,3-bis(4-pyridyl)-2,4-bis(phenyl)cyclobutane (<i>ht</i>-PP) and <i>rctt</i>-1,2-bis(4-pyridyl)-3,4-bis(phenyl)cyclobutane (<i>hh</i>-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 (C<sub>6</sub>I<sub>2</sub>Cl<sub>4</sub>). The ob  ...[more]

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