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(3-Ethyl-6,7-dimeth­oxy­naphthalen-1-yl)(phen­yl)methanone

By Karuppusamy Sakthivel, Kannupal Srinivasan and Sampath Natarajan

Abstract

The asymetric unit of the title mol­ecule, C21H20O3, contains two crystallographically independent mol­ecules, A and B, which differ in the orientation of the ethyl group substituted on the naphthalene system; the dihedral angles between the ethyl group and the naphthalene system are 7.4 (3) and 68.1 (3)°, respectively, for mol­ecules A and B. The dihedral angles between the benzoyl and naphthalene groups are 64.7 (7) and 69.4 (8)°, respectively, for mol­ecules A and B. The crystal structure features four aromatic π–π stacking interactions [centroid–centroid distances = 4.181 (1), 3.891 (1), 4.423 (1) and 4.249 (1) Å]

Topics: Organic Papers
Publisher: International Union of Crystallography
OAI identifier: oai:pubmedcentral.nih.gov:3295444
Provided by: PubMed Central
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    Citations

    1. (2010). Acta Cryst. E66, o615. organic compounds o652 Sakthivel et al. doi:10.1107/S1600536812004734 Acta Cryst.
    2. APEX2 and SAINT.
    3. (2012). Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) xyz U iso*/Ueq O1A
    4. (2004). The title molecule do not show any classical hydrogen bonds (Fig. 2). But the molecules are stabilized in the unit cell packing with help of weak π–π interactions {[Cg1···Cg2] = 4.181 (1) Å (1 - x, 2 - y, -z);

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