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Acta Cryst. (2004). E60, o1170-o1171 [ doi:10.1107/S1600536804013595 ]
Abstract: The structure of the title compound, C
H
O
, is an important example for the functionalization of the upper rim of calix[4]arene molecules. The molecule adopts a pinched cone conformation, placing the formyl groups away from each other.
Online 12 June 2004
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