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Acta Cryst. (2006). E62, m2389-m2391 [ doi:10.1107/S1600536806034143 ]
Abstract: The title compound, [Fe(C5H5)(C9H9N2)], has four molecules in the asymmetric unit and exists in the form of an R44(12) tetramer as tautomeric 3-ferrocenyl-5-methyl-1H-pyrazole and 5-ferrocenyl-3-methyl-1H-pyrazole (3:1). In a unit cell, two tetramers are linked by C-H
![[pi]](/logos/entities/pi_rmgif.gif)
hydrogen bonds involving the cyclopentadienyl rings as acceptors into a double chain in the [010] direction.
Online 31 August 2006
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