start-ver=1.4
cd-journal=joma
no-vol=63
cd-vols=
no-issue=1
article-no=
start-page=o17
end-page=o20
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2007
dt-pub=200701
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Hydrogen bonding in two solid phases of phenazine-chloranilic acid (1/1) determined at 170 and 93 K
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The crystal structures in two solid phases, i.e. phase II stable between 146 and 253 K and phase IV below 136 K, of the title compound [phenazine-chloranilic acid (1/1), C12H8N2 center dot C6H2Cl2O4, in phase II, and phenazinium hydrogen chloranilate, C12H9N2+center dot C6HCl2O4-, in phase IV], have been determined. Both phases crystallize in P2(1), and each structure was refined as an inversion twin. In phase II, the phenazine and chloranilic acid molecules are arranged alternately through two kinds of O-H center dot center dot center dot N hydrogen bonds. In phase IV, salt formation occurs by donation of one H atom from the chloranilic acid molecule to the phenazine molecule; the resulting monocation and monoanion are linked by N-H center dot center dot center dot O and O-H center dot center dot center dot N hydrogen bonds.
en-copyright=
kn-copyright=

en-aut-name=GotohKazuma
en-aut-sei=Gotoh
en-aut-mei=Kazuma
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=AsajiTetsuo
en-aut-sei=Asaji
en-aut-mei=Tetsuo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=IshidaHiroyuki
en-aut-sei=Ishida
en-aut-mei=Hiroyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Chemistry, Faculty of Science, Okayama University

affil-num=2
en-affil=
kn-affil=Department of Chemistry, Graduate School of Integrated Basic Sciences, College of Humanities and Sciences, Nihon University

affil-num=3
en-affil=
kn-affil=Department of Chemistry, Faculty of Science, Okayama University
END