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典型文献
Study on the reaction of 3-methyl-2-butenal and 3-methylbutanal with Cl atoms:kinetics and reaction mechanism
文献摘要:
The reaction of Cl atoms with two Cs aldehydes(3-methyl-2-butenal and 3-methylbutanal)were investigated by proton-transfer-reaction mass spectrum(PTR-MS)using smog cham-ber at 298±1 K and 760 Torr.A relative rate method was used to determine the rate con-stants of the title reactions with m-xylene and trans-2-butene as reference compounds:(3.04±0.18)×10-10 and(2.07±0.14)×10-10 cm3/(molecule·sec)for 3-methyl-2-butenal and 3-methylbutanal,respectively.Additionally,the gas-phase products were also identi-fied by PTR-MS,and the possible reaction mechanisms were proposed basing on the identi-fied products.The detected gas-phase products are similar for two C5 aldehydes reactions,mainly including small molecules of aldehydes,ketones and chlorinated aldehyde com-pounds.The atmospheric lifetimes(τ)calculated for 3-methyl-2-butenal(τ=7.0 hr,marine boundary layer(MBL))and 3-methylbutanal(τ=10.3 hr,MBL)according to the obtained rate constants.The results indicate that Cl atoms at MBL are competitive with OH radicals for the degradation contribution of C5 aldehyde compounds.
文献关键词:
作者姓名:
Bo Shi;Weigang Wang;Cici Fan;Yuchan Zhang;Zheng Sun;Yanli Zeng;Maofa Ge
作者机构:
College of Chemistry and Material Sciences,Hebei Normal University,Shijiazhuang 050024,China;National Demonstration Center for Experiment Chemistry,Hebei Normal University,Shijiazhuang 050024,China;Key Laboratory of Inorganic Nano-material of Hebei Province,Shijiazhuang 050024,China;State Key Laboratory for Structural Chemistry of Unstable and Stable Species,Beijing National Laboratory for Molecular Sciences(BNLMS),Institute of Chemistry,Chinese Academy of Sciences,Beijing 100190,China;Lanfang Normal University,Langfang 065000,China
引用格式:
[1]Bo Shi;Weigang Wang;Cici Fan;Yuchan Zhang;Zheng Sun;Yanli Zeng;Maofa Ge-.Study on the reaction of 3-methyl-2-butenal and 3-methylbutanal with Cl atoms:kinetics and reaction mechanism)[J].环境科学学报(英文版),2022(06):25-33
A类:
butenal,methylbutanal
B类:
Study,Cl,atoms,kinetics,two,Cs,aldehydes,were,investigated,by,proton,transfer,mass,spectrum,PTR,using,smog,cham,ber,Torr,relative,rate,method,was,used,determine,title,reactions,xylene,butene,reference,compounds,cm3,sec,respectively,Additionally,gas,phase,products,also,identi,fied,possible,mechanisms,proposed,basing,detected,are,similar,C5,mainly,including,small,molecules,ketones,chlorinated,atmospheric,lifetimes,calculated,hr,marine,boundary,layer,MBL,according,obtained,constants,results,indicate,that,competitive,radicals,degradation,contribution
AB值:
0.485729
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