. "NL - Nizozemsko" . . "14310" . . . . . "441237" . "Kurkov\u00E1, Romana" . . . "Photochemically induced nitration and hydroxylation of organic aromatic compounds in the presence of nitrate or nitrite in ice." . . . . . "The photochemistry of three model aromatic compounds (phenol, anisole, and 4 methoxyphenol; c = 0.001 mol/L) in frozen aqueous solutions containing sodium nitrite or nitrate (from c = 0.01 to 0.1 mol/L) at minus 15 C was investigated. Nitration, hydroxylation, and coupling reactions were found to be the principal chemical processes, presumably taking place in the quasi-liquid layer covering the ice crystal surfaces where both hydrophobic organic and water soluble inorganic compounds were accumulated prior to irradiation. While primary photoproducts were identified at low reaction conversions, exhaustive (quartz or Pyrex filtered) UV irradiation produced a very complex mixture of secondary photoproducts. The photoreactions proceeded predominantly by the nitrite or nitrate photoexcitation but chemistry of the excited organic chromophores was also observed. Phenol and 4 methoxyphenol photolysis afforded the corresponding nitro and hydroxycompounds, as well as biphenyl and diphenylether derivatives." . "[97F6416F930C]" . "000244833600003" . "Photochemically induced nitration and hydroxylation of organic aromatic compounds in the presence of nitrate or nitrite in ice."@en . "1010-6030" . . . . "Journal of Photochemistry and Photobiology A: Chemistry" . . "The photochemistry of three model aromatic compounds (phenol, anisole, and 4 methoxyphenol; c = 0.001 mol/L) in frozen aqueous solutions containing sodium nitrite or nitrate (from c = 0.01 to 0.1 mol/L) at minus 15 C was investigated. Nitration, hydroxylation, and coupling reactions were found to be the principal chemical processes, presumably taking place in the quasi-liquid layer covering the ice crystal surfaces where both hydrophobic organic and water soluble inorganic compounds were accumulated prior to irradiation. While primary photoproducts were identified at low reaction conversions, exhaustive (quartz or Pyrex filtered) UV irradiation produced a very complex mixture of secondary photoproducts. The photoreactions proceeded predominantly by the nitrite or nitrate photoexcitation but chemistry of the excited organic chromophores was also observed. Phenol and 4 methoxyphenol photolysis afforded the corresponding nitro and hydroxycompounds, as well as biphenyl and diphenylether derivatives."@en . "Matykiewiczov\u00E1, Nina" . "Kl\u00E1n, Petr" . "P(GA205/05/0819), Z(MSM0021622412)" . "Photochemically induced nitration and hydroxylation of organic aromatic compounds in the presence of nitrate or nitrite in ice." . "Photochemistry; Ice; Snow; Nitrate; Nitrite; Aromatic compounds; Phenol; Nitration; Oxidation."@en . "9"^^ . "Kl\u00E1nov\u00E1, Jana" . . . . "RIV/00216224:14310/07:00020855" . . . . "187" . "RIV/00216224:14310/07:00020855!RIV10-MSM-14310___" . . . "4"^^ . "187" . "Photochemically induced nitration and hydroxylation of organic aromatic compounds in the presence of nitrate or nitrite in ice."@en . . . "4"^^ .