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4-[(4-Bromo-phenyl)amino]-2-methyl-idene-4-oxo-butanoic acid.

ABSTRACT: In the title compound, C11H10BrNO3, two independent mol-ecules (A and B) crystallize in the asymmetric unit. The dihedral angles between the mean planes of the 4-bromo-phenyl ring and amide group are 24.8?(7) in mol-ecule A and 77.1?(6)° in mol-ecule B. The mean plane of the methyl-idene group is further inclined by 75.6?(4) in mol-ecule A and 72.5?(6)° in mol-ecule B from that of the amide group. In the crystal, N-H?O hydrogen bonds formed by amide groups and O-H?O hydrogen bonds formed by carb-oxy-lic acid groups are observed and supported additionally by weak C-H?O inter-actions between the methyl-idene and amide groups. Together, these link the mol-ecules into chains of dimers along [110] and form R 2 (2)(8) graph-set motifs.

SUBMITTER: Narayana B 

PROVIDER: S-EPMC4120590 | biostudies-literature | 2014 Jul

REPOSITORIES: biostudies-literature

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4-[(4-Bromo-phenyl)amino]-2-methyl-idene-4-oxo-butanoic acid.

Narayana B B   Nayak Prakash S PS   Sarojini Balladka K BK   Jasinski Jerry P JP  

Acta crystallographica. Section E, Structure reports online 20140614 Pt 7

In the title compound, C11H10BrNO3, two independent mol-ecules (A and B) crystallize in the asymmetric unit. The dihedral angles between the mean planes of the 4-bromo-phenyl ring and amide group are 24.8 (7) in mol-ecule A and 77.1 (6)° in mol-ecule B. The mean plane of the methyl-idene group is further inclined by 75.6 (4) in mol-ecule A and 72.5 (6)° in mol-ecule B from that of the amide group. In the crystal, N-H⋯O hydrogen bonds formed by amide groups and O-H⋯O hydrogen bonds formed by carb  ...[more]

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