Pyridinium and 1,2-diazinium salts of chloranilic acid

Hiroyuki Ishida, Setsuo Kashino

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

The crystal structures of two salts of chloranilic acid (2,5-dichloro-3,6- dihydroxy-p-benzoquinone), namely pyridinium chloranilate monohydrate, C5H6N+·-C6HCl 2O-4·H2O, (I), and bis(1,2-diazinium) chloranilate, 2C4H5N+2·C6Cl 2O2-4, (II), have been determined at room temperature. In (I) and (II), the cations and anions are held together by N - H⋯O hydrogen bonds with short N⋯O distances of 2.670 (4) Å in (I) and 2.582 (3) Å in (II). The H atom in the hydrogen bond in (I) was located at the N-atom site [N - H = 1.09(5) and H⋯O = 1.70 (5) Å], while that in (II) was found near the center of N⋯O [N⋯H = 1.32 (5) and H⋯O = 1.28 (5) Å].

Original languageEnglish
Pages (from-to)1149-1152
Number of pages4
JournalActa Crystallographica Section C: Crystal Structure Communications
Volume55
Issue number7
Publication statusPublished - Jul 15 1999

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Hydrogen
Hydrogen bonds
Salts
hydrogen bonds
salts
Atoms
acids
quinones
Anions
atoms
Cations
Crystal structure
anions
cations
crystal structure
Temperature
room temperature
chloranilic acid

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Structural Biology

Cite this

Pyridinium and 1,2-diazinium salts of chloranilic acid. / Ishida, Hiroyuki; Kashino, Setsuo.

In: Acta Crystallographica Section C: Crystal Structure Communications, Vol. 55, No. 7, 15.07.1999, p. 1149-1152.

Research output: Contribution to journalArticle

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abstract = "The crystal structures of two salts of chloranilic acid (2,5-dichloro-3,6- dihydroxy-p-benzoquinone), namely pyridinium chloranilate monohydrate, C5H6N+·-C6HCl 2O-4·H2O, (I), and bis(1,2-diazinium) chloranilate, 2C4H5N+2·C6Cl 2O2-4, (II), have been determined at room temperature. In (I) and (II), the cations and anions are held together by N - H⋯O hydrogen bonds with short N⋯O distances of 2.670 (4) {\AA} in (I) and 2.582 (3) {\AA} in (II). The H atom in the hydrogen bond in (I) was located at the N-atom site [N - H = 1.09(5) and H⋯O = 1.70 (5) {\AA}], while that in (II) was found near the center of N⋯O [N⋯H = 1.32 (5) and H⋯O = 1.28 (5) {\AA}].",
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N2 - The crystal structures of two salts of chloranilic acid (2,5-dichloro-3,6- dihydroxy-p-benzoquinone), namely pyridinium chloranilate monohydrate, C5H6N+·-C6HCl 2O-4·H2O, (I), and bis(1,2-diazinium) chloranilate, 2C4H5N+2·C6Cl 2O2-4, (II), have been determined at room temperature. In (I) and (II), the cations and anions are held together by N - H⋯O hydrogen bonds with short N⋯O distances of 2.670 (4) Å in (I) and 2.582 (3) Å in (II). The H atom in the hydrogen bond in (I) was located at the N-atom site [N - H = 1.09(5) and H⋯O = 1.70 (5) Å], while that in (II) was found near the center of N⋯O [N⋯H = 1.32 (5) and H⋯O = 1.28 (5) Å].

AB - The crystal structures of two salts of chloranilic acid (2,5-dichloro-3,6- dihydroxy-p-benzoquinone), namely pyridinium chloranilate monohydrate, C5H6N+·-C6HCl 2O-4·H2O, (I), and bis(1,2-diazinium) chloranilate, 2C4H5N+2·C6Cl 2O2-4, (II), have been determined at room temperature. In (I) and (II), the cations and anions are held together by N - H⋯O hydrogen bonds with short N⋯O distances of 2.670 (4) Å in (I) and 2.582 (3) Å in (II). The H atom in the hydrogen bond in (I) was located at the N-atom site [N - H = 1.09(5) and H⋯O = 1.70 (5) Å], while that in (II) was found near the center of N⋯O [N⋯H = 1.32 (5) and H⋯O = 1.28 (5) Å].

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