start-ver=1.4
cd-journal=joma
no-vol=126
cd-vols=
no-issue=8
article-no=
start-page=1134
end-page=1139
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2005
dt-pub=20058
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Intermolecular-medium and intramolecular-weak hydrogen bonding chains in the crystals of chiral trifluoromethylated amino alcohols
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=<p>A structural feature of hydrogen bonding chains found in the crystals of trifluoromethylated amino alcohols is reported. Hydrogen bondings of 3-(N,N-dialkylamino)-1,1,1-trifluoro-2-propanols construct chiral spiral hydrogen bonding chains. Lone pairs on the nitrogen atoms of the amino alcohols participate in two hydrogen bondings. Detailed structural analysis of the hydrogen bonds of the 3-(N,N-dimethylamino)-1,1,1-trifluoro-2-propanol suggested that the chain built up with alternating intermolecular medium and intramolecular weak hydrogen bonds. The medium intermolecular hydrogen bond, which transfers a proton from the hydroxy group to the amino nitrogen, would make a tentative zwitterionic form of the molecule. Then, electrostatic attraction between the charges in the zwitterion centers induced a weak intramolecular hydrogen bond.</p>
en-copyright=
kn-copyright=

en-aut-name=KatagiriToshimasa
en-aut-sei=Katagiri
en-aut-mei=Toshimasa
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=FujiwaraYasuyuki
en-aut-sei=Fujiwara
en-aut-mei=Yasuyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=TakahashiSatoshi
en-aut-sei=Takahashi
en-aut-mei=Satoshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=UneyamaKenji
en-aut-sei=Uneyama
en-aut-mei=Kenji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Okayama University

affil-num=2
en-affil=
kn-affil=Okayama University

affil-num=3
en-affil=
kn-affil=Okayama University

affil-num=4
en-affil=
kn-affil=Okayama University
en-keyword=hydrogen bond
kn-keyword=hydrogen bond
en-keyword=weak hydrogen bond
kn-keyword=weak hydrogen bond
en-keyword=medium hydrogen bond
kn-keyword=medium hydrogen bond
en-keyword=hydrogen bonding chain
kn-keyword=hydrogen bonding chain
en-keyword=trifluoromethylated amino alcohols
kn-keyword=trifluoromethylated amino alcohols
en-keyword=chiral recognition
kn-keyword=chiral recognition
en-keyword=structure of hydrogen bond
kn-keyword=structure of hydrogen bond
END