Crystal Structure of an Angular Carbazole-Coumarin Hybrid Dye

Tomoyoshi FUKAGAWA; Noriko KITAMURA; Shigeru KOHTANI; Soh-ichi KITOH; Ko-Ki KUNIMOTO; Ryoichi NAKAGAKI

doi:10.2116/analscix.22.x219

Part 9

Crystal Structure of an Angular Carbazole-Coumarin Hybrid Dye

Tomoyoshi FUKAGAWA, Noriko KITAMURA, Shigeru KOHTANI, Soh-ichi KITOH, Ko-Ki KUNIMOTO, Ryoichi NAKAGAKI

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JOURNAL FREE ACCESS

2006 Volume 22 Pages x219-x220

DOI https://doi.org/10.2116/analscix.22.x219

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Abstract

The crystal structure of 7H-4-methyl-2H-2-oxopyrano[5,6-c]carbazole has been determined by X-ray diffraction. The crystal, C₁₆H₁₁NO₂, belongs to space group C2/c with cell dimensions of a = 17.29(2)Å, b = 7.398(7)Å, c = 19.09(4)Å, β = 105.36(3)°. The final R value is 0.056 for 2257 reflections (I > 2.00σ(I)). The C=O and the NH groups of neighboring molecules are linked through intermolecular hydrogen bondings to form an infinite chain structure.

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