Molar absorption coefficient and radiolytic yield of solvated electrons in diethylmethyl(2-methoxy)ammonium bis (trifluoromethanesulfonyl)imide ionic liquid

被引：25

作者：

Asano, Akira ^{[1
]}

Yang, Jinfeng ^{[1
]}

Kondoh, Takafumi ^{[1
]}

Norizawa, Kimihiro ^{[1
]}

Nagaishi, Ryuji ^{[2
]}

Takahashi, Kenji ^{[3
]}

Yoshida, Yoichi ^{[1
]}

机构：

[1] Osaka Univ, Inst Sci & Ind Res, Ibaraki 5670047, Japan

[2] Japan Atom Energy Agcy, Tokai, Ibaraki 3191195, Japan

[3] Kanazawa Univ, Grad Sch Nat Sci & Technol, Kanazawa, Ishikawa 9201192, Japan

来源：

RADIATION PHYSICS AND CHEMISTRY | 2008年 / 77卷 / 10-12期

关键词：

ionic liquid; solvated electron; dry electron; molar absorption coefficient; radiolytic yield; pulse radiolysis;

D O I：

10.1016/j.radphyschem.2008.05.032

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The molar absorption coefficient and the radiolytic yield of solvated electron in ionic liquid of DEMMA-TFSI were estimated respectively to be 2.3x10(4) Lmol(-1)cm(-1) and 0.8x10(-7) mol J(-1) by observing the reaction and kinetics of solvated electron and dry electron in the ionic liquid. The solvated electron in DEMMA-TFSI has a very broad absorption spectrum peaking at 1100 nm and reacts slowly with pyrene with a rate constant of 3.5 x 10(8) L mol(-1) s(-1), while the dry electron is captured rapidly by pyrene with C-37 value of 0.065 mol L-1. (c) 2008 Elsevier Ltd. All rights reserved.

引用

页码：1244 / 1247

页数：4

共 19 条

[1] Reaction kinetics in ionic liquids as studied by pulse radiolysis:: Redox reactions in the solvents methyltributylammonium bis(trifluoroniethylsulfonyl)imide and N-butylpyridinium tetrafluoroborate [J].

Behar, D ;

Neta, P ;

Schultheisz, C .

JOURNAL OF PHYSICAL CHEMISTRY A, 2002, 106 (13) :3139-3147

[2] Reaction kinetics in ionic liquids: Pulse radiolysis studies of 1-butyl-3-methylimidazolium salts [J].

Behar, D ;

Gonzalez, C ;

Neta, P .

JOURNAL OF PHYSICAL CHEMISTRY A, 2001, 105 (32) :7607-7614

[3] Fluorescence probing of temperature-dependent dynamics and friction in ionic liquid local environments [J].

Funston, Alison M. ;

Fadeeva, Tatiana A. ;

Wishart, James F. ;

Castner, Edward W., Jr. .

JOURNAL OF PHYSICAL CHEMISTRY B, 2007, 111 (18) :4963-4977

[4] Pulse radiolysis study of the reactions of hydrogen atoms in the ionic liquid methyltributylammonium bis[(trifluoromethyl)sulfonyl]imide [J].

Grodkowski, J ;

Neta, P ;

Wishart, JF .

JOURNAL OF PHYSICAL CHEMISTRY A, 2003, 107 (46) :9794-9799

[5] Formation and reaction of Br2•- radicals in the ionic liquid methyltributylammonium bis(trifluoromethylsulfonyl)imide and in other solvents [J].

Grodkowski, J ;

Neta, P .

JOURNAL OF PHYSICAL CHEMISTRY A, 2002, 106 (46) :11130-11134

[6] Reaction kinetics in the ionic liquid methyltributylammonium bis(trifluoromethylsulfonyl)imide. Pulse radiolysis study of 4-mercaptobenzoic acid [J].

Grodkowski, J ;

Neta, P .

JOURNAL OF PHYSICAL CHEMISTRY A, 2002, 106 (39) :9030-9035

[7] Reaction kinetics in the ionic liquid methyltributylammonium bis(trifluoromethylsulfonyl)imide.: Pulse radiolysis study of •CF3 radical reactions [J].

Grodkowski, J ;

Neta, P .

JOURNAL OF PHYSICAL CHEMISTRY A, 2002, 106 (22) :5468-5473

[8] Electron photodetachment from iodide in ionic liquids through charge-transfer-to-solvent band excitation [J].

Katoh, Ryuzi ;

Yoshida, Yoichi ;

Katsumura, Yosuke ;

Takahashi, Kenji .

JOURNAL OF PHYSICAL CHEMISTRY B, 2007, 111 (18) :4770-4774

[9]

KIMURA A, 2007, RAD PHYS CHEM UNPUB

[10] Bimolecular rate constants for diffusion in ionic liquids [J].

McLean, AJ ;

Muldoon, MJ ;

Gordon, CM ;

Dunkin, IR .

CHEMICAL COMMUNICATIONS, 2002, (17) :1880-1881

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