Dissociation kinetics of 1,4,8,11-tetraazacyclotetradecane-N,N{prime},N{double_prime},N{prime}{double_prime}-tetraacetate complexes of cerium(III) and europium(III)
Journal Article
·
· Journal of Coordination Chemistry
- Mokwon Univ., Taejeon (Korea, Democratic People`s Republic of)
- Pusan National Univ. of Technology (Korea, Democratic People`s Republic of)
- Chungbuk National Univ., Cheongju (Korea, Democratic People`s Republic of)
In a study of the thermodynamics of complexation of lanthanide with TETA (1,4,8,11-tetraazacyclotetradecane-N,N{prime},N{double_prime},N{prime}{double_prime}-tetraacetic acid), stability was found to be less than that of the analogous DOTA complex. The destabilizing effect of the two propylenediamine groups weakens the lanthanide(III) ion-nitrogen donor interaction, even though TETA has an increased internal cavity size (14-membered cycle) comparing to DOTA (12-membered cycle). To further understand the factors involved in chelating kinetics, the authors have studied the dissociation of Ce(III) and Eu(III) complexes of TETA. 21 refs., 3 figs., 1 tab.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 83250
- Journal Information:
- Journal of Coordination Chemistry, Journal Name: Journal of Coordination Chemistry Journal Issue: 1 Vol. 30; ISSN JCCMBQ; ISSN 0095-8972
- Country of Publication:
- United States
- Language:
- English
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