caa a22 4500 469059664 CHVBK 20180323132853.0 cr unu---uuuuu 170328e19920801xx s 000 0 eng 10.1007/BF01133233 doi (NATIONALLICENCE)springer-10.1007/BF01133233 Symbolic representation of the molecular conformation of calixarenes [Elektronische Daten] [F. Ugozzoli, G. Andreetti] In calixarene chemistry there is a continuous search for new shaping units or substructures useful for molecular recognition or for the binding of ions. The problem of assigning their molecular conformations cannot be dealt with by the use of the dihedral angles as done until now, because this method contains intrinsic ambiguities. The new approach, proposed here, is based on the use of the set ofn pairs of torsion angles (conformational parameters) which involve the flexible part of the calixarene and it is free of ambiguities. Moreover, knowledge of the set of conformational parameters allows one to build straightforwardly three-dimensional molecular models. A symbolic representation of the molecular conformation of any calix[n]arene may be obtained by combining the Schöenflies symbol of the molecular symmetry together with the signs of the conformational parameters. Kluwer Academic Publishers, 1992 Calixarenes nationallicence conformations nationallicence conformational parameters nationallicence Ugozzoli F. Istituto di Chimica Generale ed Inorganica, Universitä di Parma and -Centro di Studio per la Strutturistica Diffrattometrica del C.N.R., Viale delle Scienze, 43100, Parma, Italy aut Andreetti G. Istituto di Strutturistica Chimica, Universitä di Parma and Centro di Studio per la Strutturistica Diffrattometrica del C.N.R., Viale delle Scienze, 43100, Parma, Italy aut Journal of inclusion phenomena and molecular recognition in chemistry Kluwer Academic Publishers 13/4(1992-08-01), 337-348 0923-0750 13:4<337 1992 13 10847 https://doi.org/10.1007/BF01133233 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01133233 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ugozzoli F. Istituto di Chimica Generale ed Inorganica, Universitä di Parma and -Centro di Studio per la Strutturistica Diffrattometrica del C.N.R., Viale delle Scienze, 43100, Parma, Italy aut NATIONALLICENCE 700 1- Andreetti G. Istituto di Strutturistica Chimica, Universitä di Parma and Centro di Studio per la Strutturistica Diffrattometrica del C.N.R., Viale delle Scienze, 43100, Parma, Italy aut NATIONALLICENCE 773 0- Journal of inclusion phenomena and molecular recognition in chemistry Kluwer Academic Publishers 13/4(1992-08-01), 337-348 0923-0750 13:4<337 1992 13 10847 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer