Collect. Czech. Chem. Commun. 2004, 69, 1109-1125

Synthesis and ESI-MS Alkali Metal Ion Binding Selectivities of Cone, Partial Cone, and 1,3-Alternate 1,3-Bis(α-picolyloxy)-p-tert-butylcalix[4]arene Crown-6 and 1,1'-Binaphthalene-2,2'-diyl Crown-6 Conformers

George Fergusona, Alan J. Loughb, Anna Nottic, Sebastiano Pappalardod,*, Melchiorre F. Parisic and Giuseppe Resnatie

a Department of Chemistry and Biochemistry, University of Guelph, Guelph, Ontario, N1G 2W1 Canada
b Department of Chemistry, University of Toronto, Toronto, Ontario, M5S 3H6 Canada
c Dipartimento di Chimica Organica e Biologica, Università di Messina, Salita Sperone 31, I-98166 Messina, Italy
d Dipartimento di Scienze Chimiche, Università di Catania, Viale A. Doria 6, I-95125 Catania, Italy
e Dipartimento di Chimica, Materiali, Ingegneria Chimica "G. Natta", Politecnico, Via Mancinelli 7, I-20131 Milano, Italy

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