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But-2-enal 2,4-dinitro-phenyl-hydrazone.

ABSTRACT: In the title compound, C(10)H(10)N(4)O(4), the but-2-enal chain is almost planar, the largest deviation from the mean plane being 0.013?(1)?Å, and this plane makes a dihedral angle of 9.95?(24)° with the benzene ring,. Of the two nitro groups, one is twisted with respect to the benzene ring, making a dihedral angle of 5.7?(1)°, whereas the other is nearly in the plane of the benzene ring, with a twist angle of only 0.7?(1)°. This difference is related to the occurence of an intra-molecular N-H?O hydrogen bond with the O atom of the less twisted nitro group. The NH group is also involved in a weak inter-action with the same O atom of a symmetry-related mol-ecule, thus forming a pseudo inversion dimer.

SUBMITTER: Yin ZG

PROVIDER: S-EPMC2959657 | biostudies-literature | 2008 Oct

REPOSITORIES: biostudies-literature

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But-2-enal 2,4-dinitro-phenyl-hydrazone.

Yin Zhi-Gang ZG Qian Heng-Yu HY Chen Yu-Zhen YZ Hu Jie J

Acta crystallographica. Section E, Structure reports online 20081022 Pt 11

In the title compound, C(10)H(10)N(4)O(4), the but-2-enal chain is almost planar, the largest deviation from the mean plane being 0.013 (1) Å, and this plane makes a dihedral angle of 9.95 (24)° with the benzene ring,. Of the two nitro groups, one is twisted with respect to the benzene ring, making a dihedral angle of 5.7 (1)°, whereas the other is nearly in the plane of the benzene ring, with a twist angle of only 0.7 (1)°. This difference is related to the occurence of an intra-molecular N-H⋯O ...[more]

PMID: 21581009

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