Phenyl/pentafluorophenyl interactions and the generation of ordered mixed crystals: Sym-triphenethynylbenzene and sym- tris(perfluorophenethynyl)benzene

Angewandte Chemie - International Edition

Volumn 39, Issue 13, 2000, Pages 2323-2325

  Ponzini, Francesco ^a   Zagha, Ralph ^a   Hardcastle, Kenneth ^b   Siegel, Jay S ^a  

^a UNIVERSITY OF CALIFORNIA   (United States)

^b CALIFORNIA STATE UNIVERSITY   (United States)

Author keywords

Arenes; Crystal engineering; Noncovalent interactions; Pi interactions; Supramolecular chemistry

Indexed keywords

POLYCYCLIC AROMATIC HYDROCARBON;

ARTICLE; CHEMICAL STRUCTURE; CRYSTAL STRUCTURE; MELTING POINT; REACTION ANALYSIS; STRUCTURE ANALYSIS; SYNTHESIS;

EID: 0034600911     PISSN: 14337851     EISSN: None     Source Type: Journal    
DOI: 10.1002/1521-3773(20000703)39:13<2323::AID-ANIE2323>3.0.CO;2-X     Document Type: Article

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26. 15. The average bond lengths for any given bond type are normal; however, the ranges leave something to be desired. In addition, the average aromatic carbon-carbon bond length is unusually small in the radial benzene rings, but normal for the central benzene rings in all three structures. Some of these range and average anomalies can be explained if thermal motion is focused into librational motion of the outer rings. For our purposes, detailed analyses of the specific bond lengths is not necessary, and this caveat is in place for others who might want to overinterpret the data. Despite the above mentioned concerns, we believe the supramolecular aspects of the crystal structures to be valid.
27. -3.
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