| Item type |
デフォルトアイテムタイプ_（フル）(1) |
| 公開日 |
2023-03-18 |
| タイトル |
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タイトル |
Conformation of Alkali Metal Ion−Benzo-12-Crown‑4 Complexes Investigated by UV Photodissociation and UV−UV Hole-Burning Spectroscopy |
|
言語 |
en |
| 作成者 |
Inokuchi, Yoshiya
Nakatsuma, Maki
Kida, Motoki
Ebata, Takayuki
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| アクセス権 |
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アクセス権 |
open access |
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アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 権利情報 |
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権利情報 |
Copyright (c) 2016 American Chemical Society |
| 権利情報 |
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権利情報 |
This is an open access article published under an ACS AuthorChoice License, which permits copying and redistribution of the article or any adaptations for non-commercial purposes. |
| 主題 |
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主題Scheme |
NDC |
|
主題 |
430 |
| 内容記述 |
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内容記述 |
We measure UV photodissociation (UVPD) spectra of benzo-12-crown-4 (B12C4) complexes with alkali metal ions, M+·B12C4 (M = Li, Na, K, Rb, and Cs), in the 36300−37600 cm−1 region. Thanks to the cooling of ions to ∼10 K, all the M+·B12C4 complexes show sharp vibronic bands in this region. For UV−UV hole-burning (HB) spectroscopy, we first check if our experimental system works well by observing UV−UV HB spectra of the K+ complex with benzo-18-crown-6 (B18C6), K+·B18C6. In the UV−UV HB spectra of the K+·B18C6 complex, gain signals are also observed; these are due to vibrationally hot K+·B18C6 complex produced by the UV excitation of cold K+·B18C6 complex. Then we apply UV−UV HB spectroscopy to the M+·B12C4 complexes, and only one conformer is found for each complex except for the Li+ complex, which has two conformers. The vibronic structure around the origin band of the UVPD spectra is quite similar for all the complexes, indicating close resemblance of the complex structure. The most stable structures calculated for the M+·B12C4 (M = Li, Na, K, Rb, and Cs) complexes also have a similar conformation among them, which coincides with the UVPD results. In these conformers the metal ions are too big to be included in the B12C4 cavity, even for the Li+ ion. In solution, it was reported that 12-crown-4 (12C4) shows the preference of Na+ ion among alkali metal ions. From the similarity of the structure for the M+·B12C4 complexes, it is suggested that the solvation of free metal ions, not of the M+·12C4 complexes, may lead to the selectivity of Na+ ion for 12C4 in solution. |
|
言語 |
en |
| 内容記述 |
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内容記述タイプ |
Other |
|
内容記述 |
This work was partly supported by JSPS KAKENHI Grant Number 16H04098. |
| 出版者 |
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出版者 |
American Chemical Society |
| 言語 |
|
|
言語 |
eng |
| 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 |
| 出版タイプ |
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|
出版タイプ |
VoR |
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出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 関連情報 |
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識別子タイプ |
DOI |
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関連識別子 |
10.1021/acs.jpca.6b06626 |
| 関連情報 |
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|
識別子タイプ |
PMID |
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関連識別子 |
27459367 |
| 収録物識別子 |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
1089-5639 |
| 収録物識別子 |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
1520-5215 |
| 開始ページ |
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開始ページ |
6394 |
| 書誌情報 |
Journal of Physical Chemistry A
Journal of Physical Chemistry A
巻 120,
号 32,
p. 6394-6401,
発行日 2016-07-26
|
| 旧ID |
45812 |
JPhysChemA_2016_120_6394.pdf (2.8 MB)
