Solvatomorphism in (E)-2-(2,6-dichloro-4-hydroxybenzylidene) hydrazinecarboximidamide

Julio Gutierrez, Rodney Eisenberg, Gabrielle Herrensmith, Thomas Tobin, Tonglei Li, Sihui Long

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


The structures of orthorhombic (E)-4-(2-{[amino(iminio)- methyl]amino}vinyl)-3,5-dichlorophenolate dihydrate, C 8H 8- Cl 2N 4O·2H 2O, (I), triclinic (E)-4-(2-{[amino(iminio)methyl]- amino}vinyl)-3,5-dichlorophenolate methanol disolvate, C 8H 8-Cl 2N 4O· 2CH 4O, (II), and orthorhombic (E)-amino[(2,6-dichloro- 4-hydroxystyryl)amino]methaniminium acetate, C 8H 9-Cl 2N 4O +·C 2H 3O 2 -, (III), all crystallize with one formula unit in the asymmetric unit, with the molecule in an E configuration and the phenol H atom transferred to the guanidine N atom. Although the molecules of the title compounds form extended chains via hydrogen bonding in all three forms, owing to the presence of different solvent molecules, those chains are connected differently in the individual forms. In (II), the molecules are all coplanar, while in (I) and (III), adjacent molecules are tilted relative to one another to varying degrees. Also, because of the variation in hydrogenbond- formation ability of the solvents, the hydrogen-bonding arrangements vary in the three forms.

Original languageEnglish
Pages (from-to)o310-o314
JournalActa Crystallographica Section C: Crystal Structure Communications
Issue number8
StatePublished - Aug 2011

ASJC Scopus subject areas

  • General Biochemistry, Genetics and Molecular Biology


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