Author/Authors :
Flavia Pop، نويسنده , , Crina Socaci، نويسنده , , Anamaria Terec، نويسنده , , Eric Condamine، نويسنده , , Richard Attila Varga، نويسنده , , Ciprian I. Ra?، نويسنده , , Jean Roncali، نويسنده , , Ion Grosu، نويسنده ,
Abstract :
Hay synthesis of cryptands and bismacrocycles starting from tripodands with cyanuric and isocyanuric cores is reported. The structure of the compounds is revealed by X-ray diffraction, NMR spectrometry and MS investigations. DNMR experiments carried out with bismacrocycles indicated the flipping of the rings and the free-energy barrier for the conformational process could be determined in one case.
Keywords :
Cryptands , Diynes , Bismacrocycles , Triazines , dynamic NMR
