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5-Diethyl-amino-2-{[2-(2,4-dinitro-phen-yl)hydrazin-1-yl-idene]meth-yl}phenol.


ABSTRACT: In the title compound, C(17)H(19)N(5)O(5), obtained from the condensation reaction of 4-diethyl-amino-2-hy-droxy-benzalde-hyde and 2,4-dinitro-phenyl-hydrazine, the two benzene rings are twisted by a dihedral angle of 1.75?(12)°. The nitro groups are slightly twisted with the respect to the benzene ring to which they are attached, making dihedral angles of 8.20?(15) and 5.78?(15)°. An intra-molecular O-H?N hydrogen bond occurs. In the crystal, mol-ecules are linked by pairs of inter-molecular N-H?O hydrogen bonds, forming dimers through R(2) (2)(12) rings. These dimers are further linked by C-H?O and C-H?? and weak slipped ?-? inter-actions [centroid-centroid distance = 3.743?(2)Å]. One of the ethyl groups is disordered over two positions, with occupancy factors in the ratio 0.72:0.28.

SUBMITTER: Zhao LX 

PROVIDER: S-EPMC3011673 | biostudies-literature | 2010 Nov

REPOSITORIES: biostudies-literature

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5-Diethyl-amino-2-{[2-(2,4-dinitro-phen-yl)hydrazin-1-yl-idene]meth-yl}phenol.

Zhao Lin-Xiu LX   Li Gang-Shen GS  

Acta crystallographica. Section E, Structure reports online 20101110 Pt 12


In the title compound, C(17)H(19)N(5)O(5), obtained from the condensation reaction of 4-diethyl-amino-2-hy-droxy-benzalde-hyde and 2,4-dinitro-phenyl-hydrazine, the two benzene rings are twisted by a dihedral angle of 1.75 (12)°. The nitro groups are slightly twisted with the respect to the benzene ring to which they are attached, making dihedral angles of 8.20 (15) and 5.78 (15)°. An intra-molecular O-H⋯N hydrogen bond occurs. In the crystal, mol-ecules are linked by pairs of inter-molecular N-  ...[more]

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