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A monoclinic polymorph of N-(3-chloro-phen-yl)benzamide.

Saeed A, Arshad M, Simpson J - Acta Crystallogr Sect E Struct Rep Online (2010)

Bottom Line: In both forms, the N-H bonds are anti to the 3-chloro substituents of the aniline rings.In the crystal, inter-molecular N-H⋯O hydrogen bonds form C(4) chains along c.These chains are bolstered by weak C-H⋯O inter-actions that generate R(2) (1)(6) and R(2) (1)(7) ring motifs.

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ABSTRACT
The title compound, C(13)H(10)ClNO, (I), is a polymorph of the structure, (II), first reported by Gowda et al. [Acta Cryst. (2008), E64, o462]. In the original report, the compound crystallized in the ortho-rhom-bic space group Pbca (Z = 8), whereas the structure reported here is monoclinic P21/c (Z = 4). The principal difference between the two forms lies in the relative orientations of the phenyl and benzene rings [dihedral angle = 8.90 (13)° for (I) and 61.0 (1)° for (II)]. The inclination of the amide -CONH- units to the benzoyl ring is more similar [15.8 (7)° for (I) and 18.2 (2)° for (II)]. In both forms, the N-H bonds are anti to the 3-chloro substituents of the aniline rings. In the crystal, inter-molecular N-H⋯O hydrogen bonds form C(4) chains along c. These chains are bolstered by weak C-H⋯O inter-actions that generate R(2) (1)(6) and R(2) (1)(7) ring motifs.

No MeSH data available.


Crystal packing for (I) viewed along the b axis with hydrogen bonds drawn as dashed lines.
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Fap2: Crystal packing for (I) viewed along the b axis with hydrogen bonds drawn as dashed lines.


A monoclinic polymorph of N-(3-chloro-phen-yl)benzamide.

Saeed A, Arshad M, Simpson J - Acta Crystallogr Sect E Struct Rep Online (2010)

Crystal packing for (I) viewed along the b axis with hydrogen bonds drawn as dashed lines.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3008970&req=5

Fap2: Crystal packing for (I) viewed along the b axis with hydrogen bonds drawn as dashed lines.
Bottom Line: In both forms, the N-H bonds are anti to the 3-chloro substituents of the aniline rings.In the crystal, inter-molecular N-H⋯O hydrogen bonds form C(4) chains along c.These chains are bolstered by weak C-H⋯O inter-actions that generate R(2) (1)(6) and R(2) (1)(7) ring motifs.

View Article: PubMed Central - HTML - PubMed

ABSTRACT
The title compound, C(13)H(10)ClNO, (I), is a polymorph of the structure, (II), first reported by Gowda et al. [Acta Cryst. (2008), E64, o462]. In the original report, the compound crystallized in the ortho-rhom-bic space group Pbca (Z = 8), whereas the structure reported here is monoclinic P21/c (Z = 4). The principal difference between the two forms lies in the relative orientations of the phenyl and benzene rings [dihedral angle = 8.90 (13)° for (I) and 61.0 (1)° for (II)]. The inclination of the amide -CONH- units to the benzoyl ring is more similar [15.8 (7)° for (I) and 18.2 (2)° for (II)]. In both forms, the N-H bonds are anti to the 3-chloro substituents of the aniline rings. In the crystal, inter-molecular N-H⋯O hydrogen bonds form C(4) chains along c. These chains are bolstered by weak C-H⋯O inter-actions that generate R(2) (1)(6) and R(2) (1)(7) ring motifs.

No MeSH data available.