Acta Cryst. (2003). E59, o969-o971  [ doi:10.1107/S1600536803011978 ]

5,10,15,20-Tetrakis[(4-ethylcarbonyl)oxy]phenylporphyrin

Y.-C. Lin, J.-C. Liou, T.-H. Lu, F.-L. Liao and C.-S. Chung

Abstract: The crystal structure of the title compound, C₅₆H₄₆N₄O₈, shows the porphyrin core to be composed of four pyrrole rings linked through methene carbon bridges. Each molecule lies across a crystallographic inversion center. The porphyrin core is planar, which facilitates -electron delocalization. The inner nitrogen H atoms are found localized on opposite pyrrole rings and these rings differ structurally from the other two pyrrole rings.

Online 17 June 2003

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