QUANTUM YIELD FOR PRODUCTION OF CH3NC IN THE PHOTOLYSIS OF CH3NCS

被引：24

作者：

ALVAREZ, RA

MOORE, CB

机构：

[1] UNIV CALIF BERKELEY,DEPT CHEM,BERKELEY,CA 94720

[2] LAWRENCE BERKELEY LAB,DIV CHEM SCI,BERKELEY,CA 94720

来源：

SCIENCE | 1994年 / 263卷 / 5144期

关键词：

D O I：

10.1126/science.263.5144.205

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The ultraviolet spectrum of methyl isothiocyanate (CH3NCS) and the quantum yield for its dissociation into methyl isocyanide (CH3NC) and atomic sulfur at 308 nanometers, PHI = 0.98 +/- 0.24, were measured. Methyl isothiocyanate is widely used as an agricultural fumigant and readily enters the atmosphere during and after application. The results indicate that photodissociation by sunlight is an effective pathway for its removal from the atmosphere.

引用

页码：205 / 207

页数：3

共 32 条

[1] ALVAREZ RA, IN PRESS J PHYS CHEM
[2] ALVAREZ RA, 1993, THESIS U CALIFORNIA
[3] BEZUIDENHOUT DF, 1991, HDB OPTICAL CONSTANT, P831
[4] Boxall C. R., 1972, J PHOTOCHEM, V1, P363
[5] CALVERT JG, 1967, PHOTOCHEMISTRY, P584
[6] EXCITED PRODUCTS IN PHOTODISSOCIATION OF METHYL THIOCYANATE AND ISOTHIOCYANATE IN VACUUM ULTRAVIOLET
DAMARIO, P
DISTEFAN.G
MELE, A
LENZI, M
[J]. JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1972, 68 : 940 - &
[7] DAVIS DD, 1973, INT J CHEM KINET, V5, P841
[8] DIBARTOLOMEIS MJ, 1992, EVALUATION HLTH RISK
[9] PHOTOCHEMICAL BEHAVIOR OF ISOCYANIDES
DUNNING, BK
SHAW, DH
PRITCHAR.HO
[J]. JOURNAL OF PHYSICAL CHEMISTRY, 1971, 75 (04) : 580 - &
[10] REACTION OF ALKYL ISOCYANIDES WITH OZONE - A NEW ISOCYANATE SYNTHESIS
FEUER, H
RUBINSTEIN, H
NIELSEN, AT
[J]. JOURNAL OF ORGANIC CHEMISTRY, 1958, 23 (08) : 1107 - 1109

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