6533b85efe1ef96bd12c09bd
RESEARCH PRODUCT
Peracetylated β‐cyclodextrin as solubilizer of arylphosphines in supercritical carbon dioxide
Giuseppe FilardoAnne PonchelAdlane SayedeHervé BricoutEric MonflierM. Di BlasiAlessandro Galiasubject
Diffuse reflectance infrared fourier transformGeneral Chemical EngineeringInorganic chemistry010402 general chemistry01 natural scienceschemistry.chemical_compoundGravimetric measurementDifferential scanning calorimetryDifferential scanning calorimetryDiffuse reflectance spectroscopy[CHIM]Chemical SciencesPhysical and Theoretical ChemistrySolubilityComputingMilieux_MISCELLANEOUSchemistry.chemical_classificationSupercritical carbon dioxideCyclodextrin010405 organic chemistry[CHIM.MATE]Chemical Sciences/Material chemistryCondensed Matter Physics0104 chemical sciences[CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistrySolubilityCarbon dioxidechemistryCarbon dioxideGravimetric analysisPhosphinePhosphinedescription
Abstract Effect of peracetylated β-cyclodextrin on the solubility of diphenyl(4-phenylphenyl)phosphine in supercritical carbon dioxide medium has been investigated. As shown by gravimetric measurements, the presence of cyclodextrin (CD) (1 equivalent) allows to increase the solubility of phosphine (P) in supercritical carbon dioxide (scCO 2 ) (40 °C, 35.2 MPa, nominal system density 0.89 g/mL). This solubility enhancement was attributed to host–guest interactions in scCO 2 as the P was recovered in the form of an inclusion complex. Furthermore, a diffuse reflectance spectroscopy study on the samples recovered after the experiments and on various CD/P solid mixtures obtained by co-grinding indicates that the (4-phenylphenyl) group of the P was included in the host cavity of the peracetylated β-CD.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2006-01-01 |