H. Galán, M. T. Murillo, R. Quesada, E. C. Escudero-Adán, J. Benet-Buchholz, P. Prados, J. de Mendoza
Chem. Commun. 2010, 46, 1044-1046
Abstract: The X-ray structure of a dendrimeric receptor based on calixarenes showed a packed periphery in the first generation. The presence of urea groups as linkers between the calix[4]arene core and the calix[6]arene dendrons makes it a good model as an endo-receptor which is able to coordinate squarate dianions with a high association constant.