منابع مشابه
Fast photolysis of carbonyl nitrates from isoprene
Photolysis is shown to be a major sink for isoprene-derived carbonyl nitrates, which constitute an important component of the total organic nitrate pool over vegetated areas. Empirical evidence from published laboratory studies on the absorption cross sections and photolysis rates of α-nitrooxy ketones suggests that the presence of the nitrate group (i) greatly enhances the absorption cross sec...
متن کاملIntercomparison of two isoprene measurement techniques
Ground-based intercomparison of two isoprene measurement techniques E. Leibrock, L. G. Huey, P. D. Goldan, W. C. Kuster, E. Williams, and F. C. Fehsenfeld Aeronomy Laboratory, Environmental Research Labs, NOAA, Boulder, Colorado, USA Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, Colorado, USA School of Earth and Atmospheric Sciences, Georgia Inst...
متن کاملAirborne observations of total RONO2: new constraints on the yield and lifetime of isoprene nitrates
Formation of isoprene nitrates (INs) is an important free radical chain termination step ending production of ozone and possibly affecting formation of secondary organic aerosol. Isoprene nitrates also represent a potentially large, unmeasured contribution to OH reactivity and are a major pathway for the removal of nitrogen oxides from the atmosphere. Current assessments indicate that formation...
متن کاملOn rates and mechanisms of OH and O3 reactions with isoprene-derived hydroxy nitrates.
Eight distinct hydroxy nitrates are stable products of the first step in the atmospheric oxidation of isoprene by OH. The subsequent chemical fate of these molecules affects global and regional production of ozone and aerosol as well as the location of nitrogen deposition. We synthesized and purified 3 of the 8 isoprene hydroxy nitrate isomers: (E/Z)-2-methyl-4-nitrooxybut-2-ene-1-ol and 3-meth...
متن کاملEfficient syntheses of climate relevant isoprene nitrates and (1R,5S)-(−)-myrtenol nitrate
Here we report the chemoselective synthesis of several important, climate relevant isoprene nitrates using silver nitrate to mediate a 'halide for nitrate' substitution. Employing readily available starting materials, reagents and Horner-Wadsworth-Emmons chemistry the synthesis of easily separable, synthetically versatile 'key building blocks' (E)- and (Z)-3-methyl-4-chlorobut-2-en-1-ol as well...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Atmospheric Measurement Techniques
سال: 2016
ISSN: 1867-8548
DOI: 10.5194/amt-9-4533-2016