Acta Crystallographica Section C

Volume 65, Part 9 (September 2009)

organic compounds

 

Sterically shielded pyramidal amino groups in two 4,4'-(arylmethylene)bis(6-allyl-3-chloro-2-methylaniline) derivatives

M. C. Blanco, A. Palma, A. Bahsas, M. B. Hursthouse, J. Cobo and C. Glidewell

Abstract: 4,4'-(Phenylmethylene)bis(6-allyl-3-chloro-2-methylaniline), C₂₇H₂₈Cl₂N₂, (I), and 4,4'-(2-thienylmethylene)bis(6-allyl-3-chloro-2-methylaniline), C₂₅H₂₆Cl₂N₂S, (II), adopt similar molecular conformations, although the thienyl group in (II) exhibits orientational disorder over two sets of sites with occupancies of 0.614 (3) and 0.386 (3). The amino groups in both compounds are pyramidal. A single N-HN hydrogen bond links the molecules of (I) into cyclic centrosymmetric dimers. Molecules of (II) are linked by an ordered C-H(arene) hydrogen bond to form cyclic centrosymmetric dimers, and these dimers are linked into statistically interrupted chains by a second C-H(arene) hydrogen bond involving a donor in the minor component of the disordered thienyl unit.

Formula: C₂₇H₂₈Cl₂N₂ and C₂₅H₂₆Cl₂N₂S

	Structure factor file (CIF format) (212.8 kbytes) [ doi:10.1107/S0108270109031175/gg3211Isup2.hkl ] Contains datablock I
	Structure factor file (CIF format) (247.0 kbytes) [ doi:10.1107/S0108270109031175/gg3211IIsup3.hkl ] Contains datablock II

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