Publication
Title
Activation and de-activation of fluorine synthons by nitrogen substitution in fluorinated aza-distyrylbenzenes
Author
Abstract
Three derivatives of E,E-1,4-bis[2-(2,3,4,5,6-pentafluorophenyl)ethenyl]benzene, two of which bear nitrogen atoms in the ethenyl spacers, while in a third the central benzene ring is replaced by a pyrazine moiety, have been synthesized. The supramolecular structures of the resulting set of four compounds have been studied using single-crystal X-ray diffraction to gauge the influence of the position of the nitrogen atoms on the organisation of the molecules in the solid state. The crystal packing patterns were analyzed in terms of intermolecular interactions involving the fluorine and nitrogen atoms, i.e., CHF, FF, Fπ and CHN interactions. The analysis shows that in two of the three solid-state structures the main effect of the nitrogen atoms is an indirect one: they do not participate in intermolecular contacts themselves, but activate nearby hydrogen atoms and phenyl rings in fluorine synthons to form new interactions.
Language
English
Source (journal)
CrystEngComm
Publication
2011
ISSN
1466-8033
Volume/pages
13:2(2011), p. 702-710
ISI
000285514000050
Full text (Publisher's DOI)
Full text (publisher's version - intranet only)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 03.03.2011
Last edited 19.09.2017
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