Author/Authors :
Sergio Abbate، نويسنده , , Cristina Bazzini، نويسنده , , Tullio Caronna، نويسنده , , Francesca Fontana، نويسنده , , Cristian Gambarotti، نويسنده , , Fabrizio Gangemi، نويسنده , , Giovanna Longhi، نويسنده , , Andrea Mele، نويسنده , , Isabella Natali Sora، نويسنده , , Walter Panzeri، نويسنده ,
Abstract :
The synthesis of four different monoaza[5]helicenes is reported, to complete the whole series of these compounds, so that systematic studies on their properties can be carried out. They were fully characterised via NMR. A theoretical approach to explain why ring closure occurs to give the most crowded compound is reported, in comparison with earlier calculation methods.
Keywords :
Helical structures , Photochemistry , helicenes , Molecular orbital calculations
