✍ Scribed by D. Martin Davies; Michael E. Deary
No coin nor oath required. For personal study only.
A kinetic study of the a-cyclodextrin-mediated oxidation of methyl 4-nitrophenyl sulphide by 4methylperbenzoic acid suggests that the stability constant for the cyclodextrin-peracid complex is two orders of magnitude greater than the value determined previously. Potentiometric studies confirmed this and showed that the 4-methylperbenzoate anion forms a complex of stability similar to that of the molecular acid. A less stable 2 : 1 cyclodextrin-4-methylperbenzoic acid complex is also observed.
📜 SIMILAR VOLUMES
A series of semiempirical molecular orbital calculations using the AM1 method were performed on the inclusion complexes of ␣and -cyclodextrin with benzoic acid and phenol in the ''head-first'' and ''tail-first'' positions. The AM1 results show that ␣-cyclodextrin complexes with both guest compounds
graphite-monochromated Mo,, radiation (E. = 0.7107 A). The structure was solved by direct methods (SIR92). The full-matrix least-squares refinement (teXsan package, Molecular Structure Cop.) was based on F to minimize the quantityXw(/F,I -IF,l)' with M' = l/a2(F). Non-hydrogen atomswererefined aniso
The Stoichiometry and Stability of β-Cyclodextrin Complexes of Some Aromatic Ketones and Thioketones. -The properties of 1:1 β-cyclodextrin complexes with compounds of type (I)-(IV) are investigated. Both introduction of sulfur atom and addition of benzene or alkyl chain results in stronger binding
The complexation of ferrocene and several ferrocene derivatives with the hosts a-cyclodextrin (a-CD) and b-cyclodextrin (b-CD) was investigated by electrospray mass spectrometry. A 2:1 complex was detected between a-CD and ferrocene while a 1:1 complex was observed with b-CD and this organometallic