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(E)-3,5-Dimethyl-1-p-tolyl-4-(p-tolyl-diazen-yl)-1H-pyrazole.

ABSTRACT: There are two independent mol-ecules, A and B, in the asymmetric unit of the title compound, C(19)H(20)N(4), in each of which the N=N double bond has an E conformation. The dihedral angles between the pyrazole ring and the p-tolyl rings in the 1- and 4-positions are 22.54?(8) and 35.73?(7)°, respectively, in mol-ecule A. The corresponding dihedral angles in mol-ecule B are 28.13?(8) and 22.18?(8)°. In the crystal, the A and B mol-ecules are linked by weak C-H?? inter-actions, leading to inversion dimers in each case.

SUBMITTER: Bustos C

PROVIDER: S-EPMC3275036 | biostudies-literature | 2012 Feb

REPOSITORIES: biostudies-literature

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(E)-3,5-Dimethyl-1-p-tolyl-4-(p-tolyl-diazen-yl)-1H-pyrazole.

Bustos Carlos C Pérez-Cerda Marcia M Alvarez-Thon Luis L Barrales-Salcedo Enrique E Garland Maria Teresa MT

Acta crystallographica. Section E, Structure reports online 20120111 Pt 2

There are two independent mol-ecules, A and B, in the asymmetric unit of the title compound, C(19)H(20)N(4), in each of which the N=N double bond has an E conformation. The dihedral angles between the pyrazole ring and the p-tolyl rings in the 1- and 4-positions are 22.54 (8) and 35.73 (7)°, respectively, in mol-ecule A. The corresponding dihedral angles in mol-ecule B are 28.13 (8) and 22.18 (8)°. In the crystal, the A and B mol-ecules are linked by weak C-H⋯π inter-actions, leading to inversio ...[more]

PMID: 22346981

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