Theoretical and spectroscopic studies of 5-aminoorotic acid and its new lanthanide(III) complexes
✍ Scribed by Irena Kostova; Niculina Peica; Wolfgang Kiefer
- Publisher
- John Wiley and Sons
- Year
- 2007
- Tongue
- English
- Weight
- 282 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0377-0486
- DOI
- 10.1002/jrs.1625
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## Abstract The protonation constants of 2‐[4,7,10‐tris(phosphonomethyl)‐1,4,7,10‐tetraazacyclododecan‐1‐yl]acetic acid (H~7~DOA3P) and of the complexes [Ln(DOA3P)]^4−^ (Ln=Ce, Pr, Sm, Eu, and Yb) have been determined by multinuclear NMR spectroscopy in the range pD 2–13.8, without control of ionic
The hydration state of a series of [Ln(DO2A)(H 2 O) n ] + complexes in aqueous solution at pH = 6.4-7.0 was studied by measuring the lanthanide-induced 17 O shifts (LIS) of water [Ln includes elements from Ce to Yb; DO2A = 1,7-bis(carboxymethyl)-1,4,7,10-tetraazacyclododecane]. Their contact contrib
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