Switchable Rotaxanes and Pseudorotaxane Containg the Cycloheptatrienyl-Unit (II)


Synthesis and photophysical and photochemical studies of pseudorotaxanes and rotaxanes possessing at least one cycloheptatriene station. The co-conformation of the novel rotaxanes is studied by the help of NMR-spectroscopy. The transformation into the corresponding tropylium derivatives is also studied.


Principal Investigators
Abraham, Hans-Werner Prof. i. R. Dr. rer. nat. (Details) (Organic Synthesis of Functional Systems)

Duration of Project
Start date: 02/2001
End date: 01/2002

Research Areas
Cycloheptatrien, cycloheptatriene, Rotaxan, rotaxane, supramolecular chemistry, Supramolekulare Chemie

Publications
Pseudorotaxanes and Rotaxanes containing Cycloheptatrienyl Stations: Synthesis and Coconformation, L. Grubert, D. Jacobi, K. Buck, W. Abraham, C. Mügge, E. Krause, Eur. J. Org. Chem. 2001, 3921-3932 ; Photophysics of Arylsubstituted Tropylium Ions, V. A. Kharlanov, W. Abraham, W. Rettig, J. Photochem. Photobiol. A: Chemistry, 143 (2001) 109; Photochemistry of Cycloheptatrienes and Their Related Tropylium Ions, W. Abraham, V. Kharlanov, Handbook of Photochemistry and Photobiology (Eds. H. S. Nalwa and S. Abdel-Mottaleb), Am. Sci. Publ., in press; Photophysics of Arylsubstituted Tropylium Ions, V. A. Kharlanov, W. Abraham, W. Rettig, J. Photochem. Photobiol. A: Chemistry, 143 (2001) 109; Photochemistry of 3-(4-dimethylaminophenyl)-7-methoxy-cyclohepta-1,3,5-triene, V. A. Kharlanov , W. Abraham and U. Pischel, J. Photochem. Photobiol. A: Chemistry, in press

Last updated on 2020-14-03 at 23:20