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Acta Cryst. (2013). C69, 1200-1204  [ doi:10.1107/S0108270113024943 ]

Dimers linked by type-I C-F...F-C contacts in (Z)-3-methyl-4-[2-(4-methyl­phenyl)hydrazinyl­idene]-1-(penta­fluoro­phenyl)-1H-pyrazol-5(4H)-one

L. Alvarez-Thon, C. Bustos, K. Espinoza-Santibañez, M. T. Garland and R. Baggio

Synopsis: In the title compound, there are two independent mol­ecules forming hydrogen- and [pi]-bonded dimeric entities with a noticeable noncrystallographic C2 symmetry. Dimers are linked by medium-strength type-I C-F...F-C inter­actions, forming elongated tetra­mers.

Formula: C17H11F5N4O

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