Halogen-bonded co-crystal containing 1,3-diiodoperchlorobenzene and the photoproduct rtct-tetrakis(pyridin-4-yl)cyclobutane resulting in a zigzag topology

Autor: Eric Bosch, Daniel K. Unruh, Carlos L. Santana, Ryan H. Groeneman
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Acta Crystallographica Section E: Crystallographic Communications, Vol 79, Iss 3, Pp 212-215 (2023)
Druh dokumentu: article
ISSN: 2056-9890
20569890
DOI: 10.1107/S2056989023001408
Popis: The formation and crystal structure of a zigzag network held together by I...N halogen bonds is reported. In particular, the halogen-bond donor is 1,3-diiodoperchlorobenzene (C6I2Cl4) while the acceptor is the photoproduct rtct-tetrakis(pyridin-4-yl)cyclobutane (TPCB). Curiously, within the resulting co-crystal (C6I2Cl4)·(TPCB), the photoproduct accepts only two halogen bonds between neighbouring 4-pyridyl rings and as a result behaves as a bent two-connected node rather than the expected four-connected centre. In addition, the photoproduct, TPCB, is also found to engage in C—H...N hydrogen bonds, forming an extended zigzag chain.
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