(E)-2,6-Di­bromo-4-{2-[1-(1H,1H,2H,2H-perfluoro­oct­yl)pyridinium-4-yl]ethen­yl}phenolate methanol disolvate, a fluoro­ponytailed solvatochromic dye

Acta Crystallographica Section E: Crystallographic Communications

Partl, G.¹  Gelbrich, T.²  Fliri, L.²  Schottenberger, H.²  Laus, G.²  Kahlenberg, V.³ 

[1]University of Helsinki, Department of Chemistry, PO Box 55, 00014 Helsinki, Finland

[2]University of Innsbruck, Faculty of Chemistry and Pharmacy, Innrain 80-82, 6020 Innsbruck, Austria

[3]University of Innsbruck, Institute of Mineralogy and Petrography, Innrain 52, 6020 Innsbruck, Austria

关键词: CRYSTAL STRUCTURE;    FLUOROALKYL;    METHANOL;    PHENOLATE;    PYRIDINIUM;    SOLVATOCHROMISM;   

DOI  :  10.1107/S2056989017013378

学科分类：数学（综合）

来源: International Union of Crystallography

【 摘 要 】

The title compound, C21H12Br2F13NO·2CH3OH, was obtained by condensation of 4-methyl-1-(1H,1H,2H,2H-perfluoro­oct­yl)pyridinium iodide and 3,5-di­bromo-4-hy­droxy­benzaldehyde, followed by deprotonation. It crystallizes as a methanol disolvate and exhibits short O—H⋯O hydrogen bonds and a disordered perfluoro­alkyl chain [occupancy ratio 0.538 (7):0.462 (7)]. Significant π–π stacking inter­actions are observed between the benzene and pyridine rings of neighbouring mol­ecules along the b-axis direction.

【 授权许可】

CC BY