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231223s2009 xx |||||o 00| ||eng c |
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|a 10.1002/mrc.2383
|2 doi
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|a pubmed24n0618.xml
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|a (DE-627)NLM18524386X
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|a (NLM)19089883
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|a DE-627
|b ger
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|e rakwb
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|a eng
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|a Ishizu, Takashi
|e verfasserin
|4 aut
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|a NMR spectroscopic characterization of inclusion complexes comprising cyclodextrins and gallated catechins in aqueous solution
|b cavity size dependency
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|c 2009
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 12.05.2009
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|a Date Revised 16.11.2017
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|a published: Print
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|a Citation Status MEDLINE
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|a Copyright (c) 2008 John Wiley & Sons, Ltd
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|a The structure of inclusion complexes of gamma-cyclodextrin (gamma-CD), (-)-gallocatechin gallate (GCg), and (-)-epigallocatechin gallate (EGCg) in D(2)O was investigated using several NMR techniques. GCg formed a 1:1 inclusion complex with gamma-CD in which the A and C rings of GCg were inserted deep at the head of the A ring into the gamma-CD cavity from the wide secondary hydroxyl group side. In the 1:1 inclusion complex with GCg and gamma-CD, the GCg moiety maintained a conformation in which the B and B' rings of GCg took both pseudoequatorial positions with respect to the C ring. The structure of the inclusion complex of GCg and gamma-CD obtained from NMR experiments supported well that determined from PM6 semiempirical SCF MO calculations. However, (1)H NMR experiments suggested that EGCg did not form any inclusion complex with gamma-CD in D(2)O. The marked difference between GCg and EGCg in inclusion behavior toward gamma-CD may be explained in terms of the stabilization energy calculated with the PM6 method.
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|a Journal Article
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|a Solutions
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|a gamma-Cyclodextrins
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|a gallocatechin gallate
|2 NLM
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|a 0C056HB16M
|2 NLM
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|a Catechin
|2 NLM
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|a 8R1V1STN48
|2 NLM
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|a epigallocatechin gallate
|2 NLM
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|a BQM438CTEL
|2 NLM
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|a Deuterium Oxide
|2 NLM
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|a J65BV539M3
|2 NLM
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|a gamma-cyclodextrin
|2 NLM
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|a KZJ0BYZ5VA
|2 NLM
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|a Tsutsumi, Hiroyuki
|e verfasserin
|4 aut
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|a Yamamoto, Hideji
|e verfasserin
|4 aut
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| 700 |
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|a Harano, Kazunobu
|e verfasserin
|4 aut
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|i Enthalten in
|t Magnetic resonance in chemistry : MRC
|d 1985
|g 47(2009), 4 vom: 05. Apr., Seite 283-7
|w (DE-627)NLM098179667
|x 1097-458X
|7 nnns
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| 773 |
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|g volume:47
|g year:2009
|g number:4
|g day:05
|g month:04
|g pages:283-7
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|u http://dx.doi.org/10.1002/mrc.2383
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