Proximity effect on the general base catalysed hydrolysis of amide linkage: The role of cationic surfactant, CTABr
作者:SARAT C DASH、ANADI C DASH
DOI:10.1007/s12039-011-0084-5
日期:2011.7
transition states which can be assembled by favourably oriented phenoxide groups. The solvent kinetic isotope effect for I, k H2O/k D2O + H2O ~1 (20 and 50 volume% D2O), indicates that proton transfer is not involved as a part of the rate controlling process. The observed slowing down of the rate of this reaction for I in the micellar pseudo phase of CTABr also supports the proposed mechanism. Under pre-micellar
Synthesis, crystal structures, luminescence and magnetic properties of lanthanide complexes containing the 1,8-bis(2-hydroxybenzamido)-3,6-dioxaoctane ligand
The reaction of 1,8-bis(2-hydroxybenzamido)-3,6-dioxaoctane (H2L) with lanthanidenitrates in MeCN afforded new binuclear lanthanidecomplexes (Ln=La–Nd, Sm–Yb or Y, 1–13) in high yields, and the molecular structures of 1 and 2 were established by X-ray crystallography. A photophysical study of the ligand H2L and of the binuclear complexes (Ln=Nd, Sm, Eu, Tb and Dy) has been performed and the quenching