Breu, Josef and Range, Klaus-Jürgen and Riebel, P. and Weber, A. and Sauer, J. (1996) Dicyano(7,7-dimethyl-2,5-di-p-tolyl-3,4-diazabicyclo[4.1.0]hepta-2,4-dien-3-ium-3-yl)methanide and (4-benzoyl-5,5-dimethyl-2-phenyl-1-azacyclopenta-1,3-dien-1-ium-1-yl)dicyanomethanide, two stable azomethine ylides. ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS, 52 (8). pp. 2053-2056. ISSN 0108-2701, 1600-5759
Full text not available from this repository.Abstract
The azomethine ylide moieties of dicyano(7,7-dimethyl-2,5-di-p-tolyl-3,4-diazabicyclo[4. 1.0]hepta-2,4-dien-3-ium-3-yl)methanide, C24H22N4, and (4-benzoyl-5,5-dimethyl-2-phenyl-1-azacyclopenta-1,3-dien-1-ium-1-yl)dicyanomethanide, C22H17N3O, show normal bond distances and angles in comparison with related structures reported previously. The dipolar N-C distances of 1.430(4) and 1.401(3)Angstrom are appreciably shortened compared with the C-N+ bond lengths [1.485(9)Angstrom] found in N-substituted pyridinium compounds, which is consistent with previous observations. Both title compounds pack in such a way that the ylide dipoles are arranged above each other but pointing in opposite directions.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | X-RAY |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Anorganische Chemie > Alumni or Retired Professors > Prof. Dr. Klaus-Jürgen Range |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 29 Jun 2023 06:57 |
| Last Modified: | 29 Jun 2023 06:57 |
| URI: | https://pred.uni-regensburg.de/id/eprint/51543 |
Actions (login required)
 |
View Item |
