Acta Cryst. (2005). E61, o659-o661  [ doi:10.1107/S1600536805004228 ]

1,4:8,11:15,18:22,25-Tetraethano-29H,31H-tetrabenzo[b,g,l,q]porphine toluene trisolvate

S. Aramaki, Y. Sakai, H. Yanagisawa and J. Mizuguchi

Abstract: In the title compound, C₄₄H₃₈N₄·3C₇H₈, the porphine (CP) is a soluble precursor of metal-free porphyrin which exhibits an excellent field-effect transistor characteristic. The CP molecule is not entirely flat in its crystal structure (i.e. not D_2h), but is slightly deformed, as characterized by crystallographic C_i symmetry. The geometric isomer of CP could not be identified due to orientational disorder.

Online 12 February 2005

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