Limits...
Crystal structure of 4-({5-[(E)-(3,5-di-fluoro-phen-yl)diazen-yl]-2-hy-droxy-benzyl-idene}amino)-2,2,6,6-tetra-methyl-piperidin-1-ox-yl.

Tatsız R, Kasumov VT, Tunc T, Hökelek T - Acta Crystallogr E Crystallogr Commun (2015)

Bottom Line: The piperidine rings in the two mol-ecules adopt a similar distorted chair conformation, and both have pseudo-mirror planes passing through the N-O bonds.An intra-molecular O-H⋯N hydrogen bond between the hy-droxy group and the imine N atom is observed in both mol-ecules.In the crystal, weak C-H⋯O and C-H⋯F hydrogen bonds, enclosing R 2 (2)(6) ring motifs, and weak π-π stacking inter-actions link the mol-ecules into a three-dimensional supra-molecular network, with centroid-to-centroid distances between the nearly parallel phenyl and benzene rings of adjacent mol-ecules of 3.975 (2) and 3.782 (2) Å.

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Chemistry, Harran University, 63300 Osmanbey, Şanlıurfa, Turkey.

ABSTRACT
The asymmetric unit of the title compound, C22H25F2N4O2, contains two crystallographically independent mol-ecules. In one mol-ecule, the two benzene rings are oriented at a dihedral angle of 1.93 (10)° and in the other mol-ecule the corresponding dihedral angle is 7.19 (9)°. The piperidine rings in the two mol-ecules adopt a similar distorted chair conformation, and both have pseudo-mirror planes passing through the N-O bonds. An intra-molecular O-H⋯N hydrogen bond between the hy-droxy group and the imine N atom is observed in both mol-ecules. In the crystal, weak C-H⋯O and C-H⋯F hydrogen bonds, enclosing R 2 (2)(6) ring motifs, and weak π-π stacking inter-actions link the mol-ecules into a three-dimensional supra-molecular network, with centroid-to-centroid distances between the nearly parallel phenyl and benzene rings of adjacent mol-ecules of 3.975 (2) and 3.782 (2) Å.

No MeSH data available.


Part of the crystal structure, viewed down [001]. Intra­molecular O—H⋯N and inter­molecular C—H⋯O and C—H⋯F hydrogen bonds, which enclose (6) ring motifs, are shown as dashed lines. H atoms not involved in these hydrogen bonds have been omitted for clarity.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC4518987&req=5

fig2: Part of the crystal structure, viewed down [001]. Intra­molecular O—H⋯N and inter­molecular C—H⋯O and C—H⋯F hydrogen bonds, which enclose (6) ring motifs, are shown as dashed lines. H atoms not involved in these hydrogen bonds have been omitted for clarity.

Mentions: In the crystal, strong intra­molecular O—H⋯N and weak inter­molecular C—H⋯O and C—H⋯F hydrogen bonds (Table 2 ▸) link the mol­ecules, enclosing (6) ring motifs (Bernstein et al., 1995 ▸) and forming layers parallel to (001), into a three-dimensional network (Fig. 2 ▸). The π–π stacking inter­actions between the phenyl and benzene rings, Cg1⋯Cg5i and Cg2⋯Cg4i [symmetry code: (i) x − 1, y, z, where Cg1, Cg2, Cg4 and Cg5 are the centroids of the rings A (C1–C6), B (C7–C12), D (C23–C28) and E (C29–C34), respectively], with centroid–centroid distances of 3.975 (2) and 3.782 (2) Å, respectively, may further stabilize the structure.


Crystal structure of 4-({5-[(E)-(3,5-di-fluoro-phen-yl)diazen-yl]-2-hy-droxy-benzyl-idene}amino)-2,2,6,6-tetra-methyl-piperidin-1-ox-yl.

Tatsız R, Kasumov VT, Tunc T, Hökelek T - Acta Crystallogr E Crystallogr Commun (2015)

Part of the crystal structure, viewed down [001]. Intra­molecular O—H⋯N and inter­molecular C—H⋯O and C—H⋯F hydrogen bonds, which enclose (6) ring motifs, are shown as dashed lines. H atoms not involved in these hydrogen bonds have been omitted for clarity.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4518987&req=5

fig2: Part of the crystal structure, viewed down [001]. Intra­molecular O—H⋯N and inter­molecular C—H⋯O and C—H⋯F hydrogen bonds, which enclose (6) ring motifs, are shown as dashed lines. H atoms not involved in these hydrogen bonds have been omitted for clarity.
Mentions: In the crystal, strong intra­molecular O—H⋯N and weak inter­molecular C—H⋯O and C—H⋯F hydrogen bonds (Table 2 ▸) link the mol­ecules, enclosing (6) ring motifs (Bernstein et al., 1995 ▸) and forming layers parallel to (001), into a three-dimensional network (Fig. 2 ▸). The π–π stacking inter­actions between the phenyl and benzene rings, Cg1⋯Cg5i and Cg2⋯Cg4i [symmetry code: (i) x − 1, y, z, where Cg1, Cg2, Cg4 and Cg5 are the centroids of the rings A (C1–C6), B (C7–C12), D (C23–C28) and E (C29–C34), respectively], with centroid–centroid distances of 3.975 (2) and 3.782 (2) Å, respectively, may further stabilize the structure.

Bottom Line: The piperidine rings in the two mol-ecules adopt a similar distorted chair conformation, and both have pseudo-mirror planes passing through the N-O bonds.An intra-molecular O-H⋯N hydrogen bond between the hy-droxy group and the imine N atom is observed in both mol-ecules.In the crystal, weak C-H⋯O and C-H⋯F hydrogen bonds, enclosing R 2 (2)(6) ring motifs, and weak π-π stacking inter-actions link the mol-ecules into a three-dimensional supra-molecular network, with centroid-to-centroid distances between the nearly parallel phenyl and benzene rings of adjacent mol-ecules of 3.975 (2) and 3.782 (2) Å.

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Chemistry, Harran University, 63300 Osmanbey, Şanlıurfa, Turkey.

ABSTRACT
The asymmetric unit of the title compound, C22H25F2N4O2, contains two crystallographically independent mol-ecules. In one mol-ecule, the two benzene rings are oriented at a dihedral angle of 1.93 (10)° and in the other mol-ecule the corresponding dihedral angle is 7.19 (9)°. The piperidine rings in the two mol-ecules adopt a similar distorted chair conformation, and both have pseudo-mirror planes passing through the N-O bonds. An intra-molecular O-H⋯N hydrogen bond between the hy-droxy group and the imine N atom is observed in both mol-ecules. In the crystal, weak C-H⋯O and C-H⋯F hydrogen bonds, enclosing R 2 (2)(6) ring motifs, and weak π-π stacking inter-actions link the mol-ecules into a three-dimensional supra-molecular network, with centroid-to-centroid distances between the nearly parallel phenyl and benzene rings of adjacent mol-ecules of 3.975 (2) and 3.782 (2) Å.

No MeSH data available.