Copper(II) complexes of diaminodiamides in aqueous solution |
| |
Authors: | Si-Han Liu Chung-sun Chung |
| |
Institution: | Department of Chemistry, National Tsing Hua University, Hsinchu, Taiwan 300, Republic of China |
| |
Abstract: | The basicity constants of N,N′-bis(β-carbamoylethyl)ethylenediamine, N,N′-bis(β-carbamoylethyl)trimethylenediamine, N,N′-bis(β-carbamoylethyl)-1,2-propylenediamine, and N,N′-bis-(β-carbamoylethyl)-2-hydroxyltrimethylenediamine were determined potentiometrically in 0.10 mol dm?3 NaNO3 at 25.0°C. The formation of Cu(II) complexes of these ligands and the CuO to CuN bond rearrangements at the two amide sites of these complexes were investigated quantitatively by potentiometric and spectrophotometric techniques under the same conditions. Electronic spectra of the Cu(II) complexes of these ligands and their deprotonated species formed in aqueous solution were measured and discussed. |
| |
Keywords: | Author to whom correspondence should be addressed |
本文献已被 ScienceDirect 等数据库收录! |
|