title: Nitrogen-capped pi-prismands: syntheses and conformational analyses
abstract: [structure: see text] The one-pot syntheses of the new diazabicyclophanes 5-7 are described. The benzene rings incorporated in the bridging chains exhibit rotational motion which is examined by means of variable-temperature NMR experiments and semiempirical calculations. X-ray analysis and NMR studies indicate that the metal ion in the endohedral silver(I) complex of 7 fluctuates between the two nitrogen atoms.
authors.affiliation: Organisch-Chemisches Institut der Universitat Heidelberg, Germany.
authors.initials: A
authors.lastname: Kunze
authors.initials: S
authors.lastname: Bethke
authors.initials: R
authors.lastname: Gleiter
authors.initials: F
authors.lastname: Rominger