Search results for "Dinitrophenyl"
showing 3 items of 3 documents
CCDC 951150: Experimental Crystal Structure Determination
2014
Related Article: Wdeson P. Barros, Beatriz C. da Silva, Natália V. Reis, Cynthia L. M. Pereira, Antônio C. Doriguetto, Joan Cano, Kleber R. Pirota, Emerson F. Pedroso, Miguel Julve, Humberto O. Stumpf|2014|Dalton Trans.|43|14586|doi:10.1039/C4DT01180E
Experimental and theoretical study on the substitution reactions of aryl 2,4-dinitrophenyl carbonates with quinuclidines
2006
Abstract The reactions of quinuclidines with phenyl, 4-methylphenyl, and 4-chlorophenyl 2,4-dinitrophenyl carbonates are kinetically evaluated in aqueous solution. The Bronsted-type plots (log kN vs pKa of quinuclidinium ions) are linear. The magnitude of the slopes and validated theoretical scales of electrophilicity and nucleophilicity confirm the concerted nature of these reactions.
Method for determination of formaldehyde in air in the pptv-range by HPLC after extraction as 2,4-dinitrophenyl-hydrazone
1982
The derivatization of formaldehyde with 2,4-dinitrophenylhydrazine and the extraction of the product formalhydrazone is studied. The determination is carried out by HPLC. Applying a cryogenic sampling technique and a sampling volume of 300l of air the detection limit of formaldehyde in air is 30 pptv and this is suitable for measurements of formaldehyde in the atmosphere. (IFU)