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2,2-Dibromo-N-(4-fluoro-phen-yl)acetamide.

ABSTRACT: In the crystal structure of the title compound, C(8)H(6)Br(2)FNO, C-H?O and N-H?O hydrogen bonding results in six-membered rings and links the mol-ecules into chains running parallel to the c axis. The dihedral angle between the fluoro-phenyl ring and the acetamide group is 29.5?(5)°.

SUBMITTER: Qian X

PROVIDER: S-EPMC3379398 | biostudies-literature | 2012 Jun

REPOSITORIES: biostudies-literature

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2,2-Dibromo-N-(4-fluoro-phen-yl)acetamide.

Qian Xiangjun X Fang Zheng Z Bao Shuxin S Guo Kai K Wei Ping P

Acta crystallographica. Section E, Structure reports online 20120519 Pt 6

In the crystal structure of the title compound, C(8)H(6)Br(2)FNO, C-H⋯O and N-H⋯O hydrogen bonding results in six-membered rings and links the mol-ecules into chains running parallel to the c axis. The dihedral angle between the fluoro-phenyl ring and the acetamide group is 29.5 (5)°. ...[more]

PMID: 22719596

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2,2-Diphenyl-N-{[2-(tri-fluoro-meth-yl)phen-yl]carbamo-thio-yl}acetamide.

Project description:The title mol-ecule, C22H17F3N2OS, adopts a trans-cis conformation with respect to the positions of the carbonyl and tri-fluoro-methyl-benzene groups against the thio-carbonyl group across the C-N bonds. The mol-ecular structure is stabilized by an intra-molecular N-H?O hydrogen bond with an S(6) ring motif. The tri-fluoro-methyl-substituted benzene ring forms dihedral angles of 66.05?(9) and 47.19?(9)° with the terminal phenyl rings and is twisted from the O=C-N-(C=S)-N carbonyl-thio-urea plane [maximum deviation = 0.0535?(12)?Å], making a dihedral angle of 63.59?(8)°. In the crystal, N-H?O and C-H?F hydrogen bonds link the mol-ecules into a layer parallel to the bc plane. A C-H?? inter-action is also observed.

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N-(3-Chloro-4-fluoro-phen-yl)-2,2-diphenyl-acetamide.

Project description:In the title compound, C(20)H(15)ClFNO, the dihedral angles between the mean planes of the acetamide group and the chloro-fluoro-substituted benzene ring and the two phenyl rings are 10.8?(8), 81.9?(7) and 85.8?(5)°, respectively. The crystal packing is stabilized by N-H?O hydrogen bonds and weak C-H?O inter-molecular inter-actions, forming infinite chains along the c axis.

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2-(4-Bromo-phen-yl)-N-(3,4-di-fluoro-phen-yl)acetamide.

Project description:In the title compound, C14H10BrF2NO, the dihedral angle between the mean planes of the 4-bromo-phenyl and 3,4-di-fluoro-phenyl rings is 66.4?(1)°. These two planes are twisted by 40.0?(5) and 86.3?(2)°, respectively, from that of the acetamide group. In the crystal, N-H?O hydrogen bonds and weak C-H?O and C-H?F inter-actions form infinite chains along [100].

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N-(3-Chloro-4-fluoro-phen-yl)acetamide.

Project description:In the title compound, C(8)H(7)ClFNO, the dihedral angle between the benzene ring and the acetamide side chain is 5.47?(6)°. An S(6) ring motif is formed via an intra-molecular C-H?O hydrogen bond. In the crystal, N-H?O hydrogen bonds link the mol-ecules into C(4) chains along [001].

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2-Chloro-N-(4-fluoro-phen-yl)acetamide.

Project description:In the title compound, C(8)H(7)ClFNO, an intra-molecular C-H?O hydrogen bond forms a six-membered ring. In the crystal structure, mol-ecules are linked by inter-molecular N-H?O hydrogen bonds, forming infinite chains along the c axis.

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Project description:The conformation of the N-H bond in the structure of the title compound (3NPDCA), C(8)H(6)Cl(2)N(2)O(3), is anti to the meta-nitro group, similar to that in the structures of 2-chloro-N-(3-nitro-phen-yl)acetamide (3NPCA) and 2,2,2-trichloro-N-(3-nitro-phen-yl)acetamide (3NPTCA), and the meta-chloro group in 2,2-dichloro-N-(3-chloro-phen-yl)acetamide (3CPDCA). The geometric parameters of 3NPDCA are similar to those of 2,2-dichloro-N-phenyl-acetamide, 3CPDCA, 3NPCA, 3NPTCA and other acetanilides. Inter-molecular N-H?O hydrogen bonds link the mol-ecules into chains running along the b axis.

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2,2-Dichloro-N-(3,5-dimethyl-phen-yl)-acetamide.

Project description:The structure of the title compound, C(10)H(11)Cl(2)NO, resembles those of 2,2-dichloro-N-phenyl-acetamide, 2,2-dichloro-N-(2-methyl-phen-yl)acetamide, 2,2-dichloro-N-(3-methyl-phen-yl)-acetamide, 2,2-dichloro-N-(4-methyl-phen-yl)acetamide, N-(3,5-dimethyl-phen-yl)acetamide and other acetanilides, with similar bond parameters. The mol-ecules in the title compound are linked into infinite chains through N-H?O and C-H?O hydrogen bonding.

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2,2-Dichloro-N-(2,3-dimethyl-phen-yl)acetamide.

Project description:The conformation of the N-H bond in the title compound, C(10)H(11)Cl(2)NO, is syn to both the 2- and 3-methyl substituents in the aromatic ring, similar to that of the 2-chloro and 3-chloro substituents in 2,2-dichloro-N-(2,3-dichloro-phen-yl)acetamide and the 2-methyl substituent in 2,2-dichloro-N-(2-methyl-phen-yl)acetamide, but in contrast to the anti conformation observed with respect to the 3-methyl substituent in 2,2-dichloro-N-(3-methyl-phen-yl)acetamide. The bond parameters in the title compound are similar to those in 2,2-dichloro-N-phenyl-acetamide and other acetanilides. The mol-ecules of the title compound are linked into chains through N-H?O and C-H?O hydrogen bonding.

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2,2-Dichloro-N-(3,4-dimethyl-phen-yl)acetamide.

Project description:In the title compound, C(10)H(11)Cl(2)NO, the N-H bond is syn to the 3-methyl substituent in the aromatic ring, similar to that observed in N-(3,4-dimethyl-phen-yl)acetamide and to the 3-chloro substituent in 2,2-dichloro-N-(3,4-dichloro-phen-yl)acetamide, and contrasting with the anti conformation observed for the 3-methyl substituent in 2,2,2-trichloro-N-(3,4-dimethyl-phen-yl)acetamide. On the other hand, it is anti to the C=O bond. An inter-molecular N-H?O hydrogen bond links mol-ecules into infinite chains along the b axis.

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N-(2,6-Dimethyl-phen-yl)-2,2-diphenyl-acetamide.

Project description:In the title compound, C(22)H(21)NO, the dihedral angle between the phenyl rings is 82.59?(7)°. The dimethyl-benzene ring forms dihedral angles of 52.86?(4) and 49.65?(5)° with the two phenyl rings. In the crystal, mol-ecules are linked by N-H?O hydrogen bonds, forming a C(4) chain along the c axis. The crystal also features C-H?? inter-actions.

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