p‐(1H‐Phenanthro[9,10‐d]imidazol‐2‐yl)‐Substituted Calix[4]arene, a Deep Cavity for Guest Inclusion.

p-(1H-Phenanthro[9,10-d] imidazol-2-yl)-Substituted Calix[4]arene, a Deep Cavity for Guest Inclusion Enrique Botana, Kalle Nättinen, Pilar Prados, Kari Rissanen,* and Javier de Mendoza* Universidad Autónoma de Madrid, Departamento de Química Orgánica, Cantoblanco, 28049 Madrid, Spain, University of Jyväskylä, NanoScience Center, Department of Chemistry, P. O. Box 35, 40014 JYU, Finland, and Institute of Chemical Research of Catalonia (ICIQ), Avgda. Països Catalans s/n, 43007Tarragona, Spain jmendoza@iciq.es, kari.rissanen@jyu.fi