DIPHOSPHATRIPTYCENIUM CATIONS - STRUCTURES OF THE TRIFLATE SALTS OF P-METHYL-DIPHOSPHATRIPTYCENIUM AND P,P'-DIMETHYL-DIPHOSPHATRIPTYCENIUM

Citation
Pg. Jones et A. Weinkauf, DIPHOSPHATRIPTYCENIUM CATIONS - STRUCTURES OF THE TRIFLATE SALTS OF P-METHYL-DIPHOSPHATRIPTYCENIUM AND P,P'-DIMETHYL-DIPHOSPHATRIPTYCENIUM, Zeitschrift fur Kristallographie, 209(1), 1994, pp. 68-70
Citations number
3
Categorie Soggetti
Crystallography
ISSN journal
00442968
Volume
209
Issue
1
Year of publication
1994
Pages
68 - 70
Database
ISI
SICI code
0044-2968(1994)209:1<68:DC-SOT>2.0.ZU;2-K
Abstract
The dication crystallises with imposed two-fold symmetry. Both cations show P - C bonds appreciably shortened with respect to the parent com pound 1,6-diphosphatriptycene. The cage C - C bonds are longer than th e opposite bonds in the phenyl rings. The C (Ar) - P - C (Ar) angles w iden by 6 - 7-degrees compared with the parent compound.