title: 5,10,10,15,20,20-Hexamethylcalix[4]pyrrole 5,15-diethyl diester.
abstract: In the title compound, C(32)H(40)N(4)O(4), the pyrrole rings and ester groups adopt a 1,3-alternate conformation in which the alternating pyrrole and ester units are in opposite directions. The structure displays N-H⋯O hydrogen bonding and exhibits disorder [site occupancies of 0.81(2) and 0.71(2)] in the peripheral ethyl groups.
authors.affiliation: Istanbul Technical University, Faculty of Science and Letters, Department of Chemistry, 34469 Maslak, Istanbul, Turkey.
authors.forename: Abdullah
authors.initials: A
authors.lastname: Aydogan
authors.forename: Ahmet
authors.initials: A
authors.lastname: Akar