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ID 37979
本文ファイル
著者
Morishima, Fumiya
NDC
化学
抄録(英)
The structure of 17β-estradiol (estradiol) and its monohydrated clusters is studied in a supersonic jet. The laser induced fluorescence (LIF) spectrum of estradiol shows several sharp bands in the 35050-35200 cm-1 region. Ultraviolet-ultraviolet hole-burning (UV-UV HB) and infrared-ultraviolet double-resonance (IR-UV DR) spectra of these bands indicate that they are due to four different conformers of estradiol originating from the orientation of two OH groups in the A- and D-rings. Attachment of one H2O molecule to estradiol shifts the monomer origin bands to red by ~350 cm-1 with keeping the interval between the four bands, suggesting that estradiol-H2O 1:1 complexes have conformations similar to those of the four bare estradiol conformers, and that the H2O molecule is bonded to the OH group of the A-ring (phenyl ring). In addition, very weak bands are also found near the origin bands of bare estradiol. These bands are attributed to isomers of estradiol-H2O 1:1 having a hydrogen-bond at the D-ring OH. We determine the conformation of bare estradiol and the structures of its monohydrated complexes with the aid of density functional theory, and discuss the relation between the stability of hydrated clusters and the conformation of estradiol.
内容記述
This is a preprint of an article published by American Chemical Society in Journal of Physical Chemistry A, 2012, available online: http://pubs.acs.org/doi/abs/10.1021/jp302209z.
This work is supported from the Japan Society for the Promotion of Science (JSPS) through a Grant-in-Aid project (Nos. 18205003 and 21350016) and from MEXT through a Grant-in-Aid for the Scientific Research on Priority Area “Molecular Science for Supra Functional Systems” (No. 477).
掲載誌名
Journal of Physical Chemistry A
116巻
31号
開始ページ
8201
終了ページ
8208
出版年月日
2012-08-09
出版者
American Chemical Society
ISSN
1089-5639
出版者DOI
PubMedID
言語
英語
NII資源タイプ
学術雑誌論文
広大資料タイプ
学術雑誌論文
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
author
権利情報
Copyright (c) 2012 American Chemical Society
関連情報URL(IsVersionOf)
http://dx.doi.org/10.1021/jp302209z
部局名
理学研究科