Author/Authors :
Pilar Sلnchez and Alajarيn، نويسنده , , Mateo and Lَpez-Leonardo، نويسنده , , Carmen and Bernل، نويسنده , , José and Sلnchez-Andrada، نويسنده , , Pilar، نويسنده ,
Abstract :
Center-to-propeller stereocontrol in a family of macrobicyclic, double-propeller shaped tri-λ5-triphosphazenes remains constant in the upper tribenzylamine fragment as the size of the pivotal group at the lower tris(phosphane) fragment is gradually increased. In contrast the propeller-to-propeller stereocontrol diminishes as a result of the increasing conformational lability in the lower hemisphere.
