| Autor: |
Inglebert SA; Sri Ram Engineering College, Chennai 602 024, India., Kamalraja J; Organic Chemistry Division, CSIR Central Leather Research Institute, Chennai 600 020, India., Sethusankar K; Department of Physics, RKM Vivekananda College (Autonomous), Chennai 600 004, India., Perumal PT; Organic Chemistry Division, CSIR Central Leather Research Institute, Chennai 600 020, India. |
| Jazyk: |
angličtina |
| Zdroj: |
Acta crystallographica. Section E, Structure reports online [Acta Crystallogr Sect E Struct Rep Online] 2014 May 24; Vol. 70 (Pt 6), pp. o710-1. Date of Electronic Publication: 2014 May 24 (Print Publication: 2014). |
| DOI: |
10.1107/S1600536814010794 |
| Abstrakt: |
In the title compound, C19H22N2O4, the six-membered cyclo-hexenone ring of the chromene unit adopts an envelope conformation, with the dimethyl-substituted C atom as the flap, while the pyran ring has a boat conformation. These two mean planes are inclined to one another by 6.65 (13)°·The benzene ring is normal to the 4H-chromene moiety mean plane, making a dihedral angle of 89.18 (5)°. The methyl-amine and nitro groups are slightly twisted from the chromene moiety mean plane, with torsion angles C-N-C-O = 1.70 (18) and O-N-C-C = 0.15 (18)°. The mol-ecular structure is characterized by an intra-molecular N-H⋯O hydrogen bond, which generates an S(6) ring motif. In the crystal, mol-ecules are linked via pairs of weak C-H⋯O hydrogen bonds, forming inversion dimers. These dimers are connected by further C-H⋯O hydrogen bonds, forming sheets lying parallel to (10-1). |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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