5,17-Dinitro-11,23-diphthalimido-25,26,27,28-tetrapropoxycalix[4]arene

C₅₆H₅₂N₄O₁₂

Spek, Anthony L.Boerrigter, HaroldVerboom, WillemReinhoudt, David N.

Acta Crystallographica Section C (1998) 54, 7 1023-1025

a=23.437(3)Å   b=11.8595(13)Å   c=17.898(2)Å

α=90°   β=97.418(10)°   γ=90°