Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2009 Apr 18;65(Pt 5):o1045-6.
doi: 10.1107/S1600536809013476.

2,2-Diphenyl-benzo[c]quinoline-1-ox-yl

Corrado Rizzoli, Elda Marku, Lucedio Greci, Paola Astolfi

2,2-Diphenyl-benzo[c]quinoline-1-ox-yl

Corrado Rizzoli et al. Acta Crystallogr Sect E Struct Rep Online. .

Abstract

In the title compound, C(25)H(18)NO, a stable phenanthridinic nitroxide, the ring containing the nitroxide function assumes a twist-boat conformation and the dihedral angle formed by adjacent benzene rings is 21.78 (5)°. The phenyl substituents at position 2 are approximately orthogonal to each other, forming a dihedral angle of 81.04 (4)°. The crystal structure is stabilized by an intra-molecular C-H⋯O hydrogen bond and by C-H⋯π inter-actions.

PubMed Disclaimer

Figures

Fig. 1.
Fig. 1.
The molecular structure of the title compound. The displacement ellipsoids are drawn at the 50% probability level. The intramolecular C—H···O hydrogen bond is shown as a dashed line.
Fig. 2.
Fig. 2.
Crystal packing of the title compound viewed approximately along the b axis. Intramolecular C—H···O hydrogen bonds are shown as dashed lines.
Fig. 3.
Fig. 3.
Experimental and simulated ESR spectrum of the title compound.
See this image and copyright information in PMC

References

    1. Allen, F. H. (2002). Acta Cryst. B58, 380–388. - PubMed
    1. Altomare, A., Burla, M. C., Camalli, M., Cascarano, G. L., Giacovazzo, C., Guagliardi, A., Moliterni, A. G. G., Polidori, G. & Spagna, R. (1999). J. Appl. Cryst.32, 115–119.
    1. Arends, I., Li, Y.-X. & Sheldon, A. R. (2006). Biocatal. Biotransform.24, 443–448.
    1. Bailly, B., Donnenwirth, A.-C., Bartholome, C., Beyou, E. & Bourgeat-Lami, E. (2006). J. Nanomater. pp. 1–10.
    1. Bruker (1998). SMART, SAINT-Plus and SADABS Bruker AXS Inc., Madison, Wisconsin, USA.