The Crystal Structure of 1,3-Alternate 25,27-Bis(1-propyloxy)calix[4]arene crown-6, $C_{44}H_{54}O_8$

1,3-Alternate 25,27-Bis(1-propyloxy)calix[4]arene crown-6, $C_{44}H_{54}O_8$의 결정구조

The title compound consisting of a calix[4]arene molecule with four phenyl rings bridged by four methylene groups and arranged alternately in anti-orientation fashion, two 25,27-bis(1-pro-pyloxy) groups attached on the two lower rims of calix[4]arene, and crown-6 chain attached on the other set of lower rims of calix[4]arene offers a big cavity inside a molecule which might possess a potential for forming host-guest complexes. The molecular packing is accomplished by van der Waals forces.