Author/Authors :
Lhot?k، نويسنده , , Pavel and Kapl?nek، نويسنده , , Luk?? and Stibor، نويسنده , , Ivan and Lang، نويسنده , , Jan and Dvo??kov?، نويسنده , , Hana and Hrabal، نويسنده , , Richard E. Sykora، نويسنده , , Jan، نويسنده ,
Abstract :
The conformational behaviour of 25,27-dimethoxythiacalix[4]arene was studied using NMR techniques and X-ray analysis. The title compound prefers a cone conformation in solution, while in the solid state it adopts a unique 1,2-alternate conformation thus creating a novel type of molecular channel held together by π–π interactions.
Keywords :
Calixarenes , Alkylation , Conformation , NMR analysis , X-ray crystallography