Nitrogen-capped pi-prismands: syntheses and conformational analyses
[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.
Kunze
A
Organisch-Chemisches Institut der Universitat Heidelberg, Germany.
Bethke
S
Gleiter
R
Rominger
F