Photodissociation of CH2I2 and the subsequent electron transfer in its cluster formed in solution

被引：0

作者：

Naitoh, Y ^{[1
]}

Saitow, K ^{[1
]}

Yoshihara, K ^{[1
]}

机构：

[1] JST, Inoue Photochiruogenesis Project, Toyonaka, Osaka 5650085, Japan

来源：

ULTRAFAST PHENOMENA XI | 1998年 / 63卷

关键词：

D O I：

暂无

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

We have studied photodissociation and the subsequent reactions of methylene iodide (CH2I2) upon excitation at 268 nm in acetonitrile and hexane solutions by the femtosecond transient absorption spectroscopy. In addition to dissociation and geminate recombination in the femtosecond region, formation of CH2I2+ is observed in the early picosecond region. The reaction is proposed to occur by electron transfer between photofragment I and CH2I2. This indicates that the solute molecules aggregate even in a dilute solution and they are responsible for the cation formation.

引用

页码：624 / 626

页数：3

共 4 条

[1]

ANDREWS L, 1978, J AM CHEM SOC, V101, P9

[2] GAMMA-RADIOLYSIS OF CH2I2 IN 3-METHYL PENTANE [J].

MOHAN, H ;

IYER, RM .

RADIATION EFFECTS AND DEFECTS IN SOLIDS, 1978, 39 (02) :97-101

[3] Photo-induced reactions of CH2I2 in solution studied by the ultrafast transient absorption spectroscopy [J].

Saitow, K ;

Naitoh, Y ;

Tominaga, K ;

Yoshihara, K .

CHEMICAL PHYSICS LETTERS, 1996, 262 (05) :621-626

[4] DIRECT FEMTOSECOND MEASUREMENTS OF SINGLE COLLISION DOMINATED GEMINATE RECOMBINATION TIMES OF SMALL MOLECULES IN LIQUIDS [J].

SCHWARTZ, BJ ;

KING, JC ;

ZHANG, JZ ;

HARRIS, CB .

CHEMICAL PHYSICS LETTERS, 1993, 203 (5-6) :503-508

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