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- Title
Crystal architecture of the low melting nitrogen heterocycles tetrafluoropyrimidine and trifluorotriazine.
- Authors
Vasylyeva, Vera; Merz, Klaus
- Abstract
In situ cryo-crystallization was used to obtain single crystals of the low-melting tetrafluoropyrimidine and trifluorotriazine in order to explore the molecular aggregation of nitrogen-containing aromatic compounds with weak directing substituents in the solid state. A comparative crystallographic study of the series hexafluorobenzene, pentafluoropyridine, tetrafluoropyrimidine and trifluorotriazine was performed to clarify an influence of a successive substitution of C-F groups by a further nitrogen atom on the crystal architecture. Due to the absence of the hydrogen atoms different supramolecular motifs based on short F···F contacts were observed in all crystal structures.
- Subjects
HETEROCYCLIC compounds; NITROGEN spectra; MELTING; SOLID state physics; AROMATIC compounds spectra; HEXAFLUOROBENZENE
- Publication
Zeitschrift für Kristallographie. Crystalline Materials, 2014, Vol 229, Issue 9, p603
- ISSN
2194-4946
- Publication type
Article
- DOI
10.1515/zkri-2014-1730