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2-[(2-Hydroxybenzyl)amino]pyrazinium perchlorate–2-[(pyrazin-2-ylamino)methyl]phenol (1/1)

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Author(s): Shan Gao | Seik Weng Ng

Journal: Acta Crystallographica Section E
ISSN 1600-5368

Volume: 68;
Issue: 8;
Start page: o2475;
Date: 2012;
Original page

ABSTRACT
In the crystal structure of the title co-crystal, C11H12N3O+·ClO4−·C11H11N3O, the perchlorate ion is disordered about a twofold rotation axis with the Cl atom located on the twofold rotation axis; the 2-[(2-hydroxybenzyl)amino]pyrazinium cation and the neutral 2-[(pyrazin-2-ylamino)methyl]phenol molecule are disordered about the rotation axis in a 1:1 ratio. These two are connected by a pyrazine–pyrazine N1—H...N4 hydrogen bond. The cation, whose two aromatic rings are twisted along the –CH2—NH– bond by 76.8 (1)°, is a hydrogen-bond donor to the perchlorate ion through the N atom of this link.

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Tangokurs Rapperswil-Jona

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