0000000001036570
AUTHOR
E. Le Fur
Detection et quantification de molecules d' arome en sortie de CLHP par amperometrie pulsee
*INRA Unite Regionale de Documentation B.V. 1540 21034 Dijon Cedex Diffusion du document : INRA Unite Regionale de Documentation B.V. 1540 21034 Dijon Cedex Diplôme : Dr. d'Université
Comparative investigation of pulsed electrochemical and ultraviolet detections in the determination of flavor-active aldehydes separated by HPLC
International audience
Interest of pulsed electrochemical detection for the analysis of flavor-active alcohols separated by liquid chromatography
International audience
Magnetic properties of vanadium(IV)-based extended systems: [(VO)3(μ-PO4)2(2,2′-bpy)(μ-OH2)]*1/3H2O and (VO)2H4P2O9
International audience; The magnetic properties of [(VO)3(μ-PO4)2(2,2′-bpy)(μ-OH2)]1/3H2O (1) and (VO)2H4P2O9 (2), a tubular and a layered vanadium(IV) phosphates containing triply oxido bridged VIV dimers, are analyzed considering the Bleaney-Bowers S = 1/2 dimer model. In compound 1 the presence of an additional VIV connected with the VIV dimers through μ1,2-PO43− bridges is described with a Curie-Weiss type correction. This model reproduces the magnetic properties of compound 1 with g = 1.956, Jdim = −102.1 cm−1, θ = −0.4 cm−1 and Nα = 278 × 10−6 emu mol−1. In compound 2, the presence of a small percentage of paramagnetic impurity has to be considered to account for the divergence of χm …