Thermodynamic study of the complexation between Nd(3+) and functionalized diacetamide ligands in solution.

Content Provider	Semantic Scholar
Author	Dau, Phuong V. Zhang, Zhicheng Gibson, John K. Rao, Linfeng
Copyright Year	2016
Abstract	A series of amine functionalized ligands, including 2,2'-(benzylazanediyl)bis(N,N'-dimethylacetamide) (BnABDMA), 2,2'-azanediylbis(N,N'-dimethylacetamide) (ABDMA), and 2,2'-(methylazanediyl)bis(N,N'-dimethylacetamide) (MABDMA), are synthesized for the thermodynamic study of their complexation with Nd(3+) ions. Their complexation in solution is investigated using potentiometry, spectrophotometry, calorimetry, and electrospray ionization mass spectrometry. The results suggest that these ligands act as tridentate ligands. Furthermore, direct comparison between ABDMA and an analogous ether-functionalized ligand, 2,2'-oxybis(N,N'-dimethylacetamide) (TMDGA), showed that the amine functionalized ligand forms thermodynamically stronger complexes with Nd(3+) ions than the ether-functionalized ligand. In addition, the amine functionalized ligand can allow the fine-tuning of the binding strength with metal ions via substitution on the central amine N atom with different functional groups, which is not possible for ether functionalized ligands such as TMDGA.
File Format	PDF HTM / HTML
DOI	10.1039/c6dt01694d
PubMed reference number	27222301
Journal	Medline
Volume Number	45
Issue Number	30
Alternate Webpage(s)	http://www.rsc.org/suppdata/c6/dt/c6dt01694d/c6dt01694d1.pdf
Alternate Webpage(s)	https://doi.org/10.1039/c6dt01694d
Journal	Dalton transactions
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article