| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2009-12-16 |
| タイトル |
|
|
タイトル |
Hydration to Benzo-15-crown-5, Benzo-18-crown-6 and the Benzo-18-crown-6-Potassium Ion Complex in the Low-Polar Organic Solvents |
| 資源タイプ |
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|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
KIKUCHI, Yoichi
ARAYASHIKI, Yukiya
ANADA, Takahisa
|
| 著者(機関) |
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|
値 |
Laboratory of Chemistry, Faculty of Education, Iwate University |
| 登録日 |
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|
日付 |
2009-12-16 |
| 書誌情報 |
Analytical Sciences
巻 17,
号 3,
p. 421-424,
発行日 2001-01-01
|
| ISSN |
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収録物識別子タイプ |
ISSN |
|
収録物識別子 |
0910-6340 |
| Abstract |
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|
内容記述タイプ |
Other |
|
内容記述 |
The coextraction of water with benzo-15-crown-5 (B15C5), benzo-18-crown-6 (B18C6) and the B18C6-K^+ complex into seven low-polar solvents, i.e., carbon tetrachloride (CTC), chloroform (CF), dichloromethane (DCM), 1,2-dichloroethane (1,2-DCE), benzene (BZ), chlorobenzene (CB) and o-dichlorobenzene (o-DCB), has been investigated. The mean hydration number, n_<H2O>, of these solutes in the water-saturated organic solvents was determined. There is a trend that the n_<H2O> values for any solutes increase with increasing the water concentration in the solvents. Those of B18C6 and B15C5 converge at almost 0.8 for B18C6 and 0.4 - 0.5 for B15C5 in the solvents with the relatively high water concentration, i.e., CF, 1,2-DCE, DCM, and nitorobenzene (NB). The n_<H2O> value of B15C5 is about one-half of that of B18C6 for a given organic solvent. The dominant species of the B18C6-K^+ complex in these solvents is non-hydrated. From these results, the hydration equilibrium constants, K_<H2O>,o, in the organic solvents were estimated. |
| 出版者 |
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|
出版者 |
The Japan Society for Analytical Chemistry |
| 権利 |
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|
権利情報 |
2001 (c) The Japan Society for Analytical Chemistry |
| 著者版フラグ |
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|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
as-v17n3p421-424.pdf (53.6 kB)
