2-(Mesitylmethyl-sulfan-yl)pyridine N-oxide-18-crown-6 (2/1).

B Ravindran Durai Nayagam,J Jebaraj Devadasan,Dieter Schollmeyer,Samuel Robinson Jebas

doi:10.1107/s1600536808012403

B Ravindran Durai Nayagam, J Jebaraj Devadasan + Show 2 more

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https://doi.org/10.1107/s1600536808012403

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Abstract

In the title compound, 2C15H17NOS·C12H24O6, the asymmetric unit consists of one N-oxide derivative and one-half of the 18-crown-6 ether, which lies on an inversion centre. In the crown ether, the O—C—C—O torsion angles indicate a gauche conformation of the ethyleneoxy units, while the C—O—C—C torsion angles indicate planarity of these segments. In the N-oxide unit, the dihedral angle between the pyridine and benzene rings is 85.88 (12)°. The crystal packing is stabilized by weak C—H⋯O hydrogen bonds and C—H⋯π interactions.

Highlights

2C15H17NOSC12H24O6, the asymmetric unit consists of one N-oxide derivative and one-half of the 18-crown-6 ether, which lies on an inversion centre
The crystal packing is stabilized by weak C—H O hydrogen bonds and C—H
In view of the importance of N-oxides, we have previously reported the crystal structures of N-oxide derivatives (Jebas et al, 2005; Ravindran Durai Nayagam et al, 2008)

Summary

Data collection

J. Jebaraj Devadasanc and Dieter Schollmeyerd a Department of Chemistry, Popes College, Sawyerpuram 628 251, Tamil Nadu, India, bDepartment of Physics, Karunya University, Karunya Nagar, Coimbatore 641. 114, India, cDepartment of Physics, Popes College, Sawyerpuram 628 251, Tamilnadu, India, and dInstitut für Organische Chemie, Universität Mainz, Duesbergweg 10-14, 55099 Mainz, Germany. 2C15H17NOSC12H24O6, the asymmetric unit consists of one N-oxide derivative and one-half of the 18-crown-6 ether, which lies on an inversion centre. The O—C—C—O torsion angles indicate a gauche conformation of the ethyleneoxy units, while the C—. O—C—C torsion angles indicate planarity of these segments. In the N-oxide unit, the dihedral angle between the pyridine and benzene rings is 85.88 (12). Cg1 and Cg2 are the centroids of the N6/C1–C5 and C10–C15 rings, respectively. Data collection: CAD-4 Software (Enraf–Nonius, 1989); cell refinement: CAD-4 Software; data reduction: CAD-4 Software; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXL97

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