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4篇 您的检索式:作者名="Qiongzhen Lin"
    题名 作者 年代 出处 被引量
1The chemistry of heavy haze over Urumqi, Central Asia显示文摘Juan Li Guoshun Zhuang Kan Huang Yanfen Lin Qiongzhen Wang Yuhong Guo Jinghua Guo Shulong Yu Caixia Cui Joshua S. Fu 2008Journal of Atmospheric Chemistry2008,,1:2
2Arenesulfonyl Fluoride Synthesis via Copper-free Sandmeyer-type Fluorosulfonylation of Arenediazonium Salts显示文摘Summary of main observation and conclusion The limited availability of highly valuable arenesulfonyI fluorides seriously hinders their further applica-tion in many research fields including medicinal chemistry and chemical biological,organic synthesis,polymer preparation,etc.We report herein a mild and eficient copper-fre Sandmeyer-type fluorosulfonylation reaction of various arenediazonium salts to prepare valuable arenesulfonyl fluorides using KxS2Os as both a reductant and a practical sulfonyl source in combination with N-fluorobenzenesulfonimide as an effective fluorine source.This method-ology provides an attractive route to diverse important arenesulfonyl fluorides given the overall practicality and scope.Qiongzhen Lin Zhanhu Ma Changge Zheng Xiao-Jun Hu Yong Guo Qing-Yun Chen Chao Liu 2020Chinese Journal of Chemistry2020,38,10:2
3Aerosol oxalate and its implication to haze pollution in Shanghai,China显示文摘A total of 238 samples of PM2.5and TSP were analyzed to study the characteristics,sources,and formation pathways of aerosol oxalate in Shanghai in four seasons of 2007.The concentrations of oxalate were0.07–0.41 lg/m3in PM2.5and 0.10–0.48 lg/m3in TSP,respectively.Oxalate displayed a seasonal variation of autumn[summer[winter[spring in both PM2.5and TSP and was dominantly present in PM2.5in all samples.Correlation between oxalate and K?and high ratio of oxalate/K?suggested that biomass burning was a secondary source of aerosol oxalate in Shanghai,in addition to urban VOCs sources(vehicular and industrial emissions),especially in autumn.Secondary formation accounted for the majority of aerosol oxalate in Shanghai,which was supported by the high correlation of oxalate with nssSO42-,K?and NO3-,proceeding from different mechanisms.Relatively high ambient RH together with high cloud cover was found benefiting the secondary formation of aerosol oxalate.The in-cloud process(aqueous-phase oxidation)was proposed to be likely the major formation pathway of aerosol oxalate in Shanghai,which was supported by the high correlation of oxalate with nss-SO42-and K?,dominant residence of oxalate in droplet mode and result of favorable meteorological condition analysis.High correlation of oxalate and NO3-reflected the OH radical involved oxidation chemistry of the two species in the atmosphere and also suggested that gas-particle surface reactions and the evaporation–condensation process were both possible secondary formation pathways of aerosol oxalate in coarser particle mode([1.0 lm).As a major water-soluble organic compound in aerosols,concentration of oxalate showed a distinct negative correlation to the atmospheric visibility,which implied that aerosol organic compounds could play an important role in haze pollution as well as in air quality in Shanghai.Yilun Jiang Guoshun Zhuang Qiongzhen Wang Tingna Liu Kan Huang Joshua S.Fu Juan Li Yanfen Lin Rong Zhang Congrui Deng 2014Chinese Science Bulletin2014,59,2:1
4The chemistry of heavy haze over Urumqi, Central Asia显示文摘Juan Li Guoshun Zhuang Kan Huang Yanfen Lin Qiongzhen Wang Yuhong Guo Jinghua Guo Shulong Yu Caixia Cui Joshua S. Fu 2008Journal of Atmospheric Chemistry2008,,1:1
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