Co-ordinating properties in aqueous solution of the oxygen atom in bis-2-aminoethyl ether
- 1 January 1974
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 21,p. 2363-2367
- https://doi.org/10.1039/dt9740002363
Abstract
The stability constants of the NiII, CuII, and ZnII complexes with bis-2-aminoethyl ether (oden) have been determined at 25 °C in 0·5M-KNO3 and the enthalpies of reaction determined calorimetrically under the same conditions. The results are compared with those for diethylenetriamine (den). In all the complexes investigated the co-ordination of the oxygen atom is achieved. The simple MII(oden) complexes are less stable than the corresponding den complexes, and the determining factor in the destabilisation is a less favourable enthalpic contribution. Thus we might consider the co-ordination of the ether oxygen atom as an endothermic process. The results obtained for the hydroxo-species [Cu(OH)(oden)]+ and [Zn(OH)(oden)]+ are different from results previously obtained for similar species. Explanations are suggested.Keywords
This publication has 0 references indexed in Scilit: