Collect. Czech. Chem. Commun.
2004, 69, 1362-1380
https://doi.org/10.1135/cccc20041362
Design and Preparation of Mesogenic Cavitands
Laura Pirondinia, Gabriele Vecchia, Sara Negria, Alfredo Di Blasia, Chiara Masserab and Enrico Dalcanalea,*
a Dipartimento di Chimica Organica e Industriale and INSTM, UdR Parma, Università di Parma, Parco Area delle Scienze 17/A, 43100 Parma, Italy
b Dipartimento di Chimica Generale ed Inorganica, Chimica Analitica, Chimica Fisica, Università di Parma, Parco Area delle Scienze 17/A, 43100 Parma, Italy
Abstract
Mesogenic cavitands have been prepared for the first time. They form uniaxial disordered columnar mesophases (Dhd). The structure requirements for mesophase formation have been identified: (i) macrocyclic cores with thickness below 5 Å and (ii) four large (3,4,5-tris{[4-(dodecyloxy)benzyl]oxy}benzoyl)oxy groups at the upper rim. The orientation of the molecules within the columns is random, excluding the formation of intracolumnar cavities of molecular dimensions in the mesophase.
Keywords: Cavitands; Liquid crystals; Self-organization; Calixarenes; Resorcinarenes; Macrocycles; X-Ray diffraction.
References: 26 live references.
