3,4,5-Trihydroxy-N '-(1H-indol-2-yl-methylidene)benzohydrazide-1H-indole-2-carbaldehyde azine-methanol (2/1/2)

Khaledi, H. and Abdulla, M.A. and Robinson, W.T. and Ali, Hapipah Mohd and Alhadi, A.A. (2010) 3,4,5-Trihydroxy-N '-(1H-indol-2-yl-methylidene)benzohydrazide-1H-indole-2-carbaldehyde azine-methanol (2/1/2). Acta Crystallographica Section E: Structure Reports Online, 66. O105-U1967. ISSN 1600-5368

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The title compound, 2C(16)H(13)N(3)O(4)center dot C(18)H(14)N(4)center dot 2CH(4)O, was crystallized from the reaction between 3,4,5-trihydroxy-benzoylhydrazine and indole-2-carbaldehyde in a mixture of ethanol and methanol. The compound is a stoichiometric 2:1 cocrystal of the methanol-solvated reaction product, 3,4,5-trihydroxy-N'-(1H-indol-2-ylmethylidene) benzohydrazide and 1H-indole-2-carbaldehyde azine that arose unexpectedly during the synthesis. The former molecules are linked by O-H center dot center dot center dot O hydrogen bonds and also by pi-pi stacking interactions between benzoylhydrazide rings into a two-dimensional network. The methanol solvent molecules are hydrogen bonded to this network. The centrosymmetric azine molecules are not engaged in hydrogen bonding.

Item Type: Article
Additional Information: Department of Chemistry, Faculty of Science Building, University of Malaya, 50603 Kuala Lumpur, MALAYSIA
Uncontrolled Keywords: Gallic Acid; Derivatives
Subjects: Q Science > QD Chemistry
Divisions: Faculty of Science > Dept of Chemistry
Depositing User: Miss Malisa Diana
Date Deposited: 01 Apr 2013 04:09
Last Modified: 29 Jan 2019 09:17
URI: http://eprints.um.edu.my/id/eprint/5302

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