17O-NMR spectroscopy to study the coordination of oxygen-based ligands to lanthanide ions in solution. Issue 9 (2nd May 2016)

• Record Type: Journal Article
• Authors: Lin, Zhijin; Allen, Matthew J.
• Is Part Of: Journal of coordination chemistry. Volume 69:Issue 9(2016)
• Page Start: 1411
• Page End: 1418
• Publication Date: 2016-05-02
• Subjects: Coordination number -- dysprosium -- lanthanide -- 17O-NMR spectroscopy -- solvent; Coordination compounds -- Periodicals; 541.2242
• DOI: 10.1080/00958972.2016.1180374
• Languages: English
• ISSNs: 0095-8972

Abstract

Abstract: The number of oxygen-based ligands coordinated to lanthanide ions influences the physical and chemical properties of lanthanide complexes, making this number important to study. We used peak shifts in 17 O-NMR spectroscopy to determine the number of individual nonhydroxyl-oxygen-based ligands coordinated to Dy 3+ . Oxygen-containing organic solvents were used as models to represent oxygen-based ligands to explore the scope of the technique because they contain a range of functional groups that have different electron-donating abilities and steric bulk. The measured coordination numbers of dimethylformamide, dimethyl sulfoxide, acetone, diethyl ether, tetrahydrofuran, di-isopropyl ketone, and hexamethyl acetone were consistent with reasonable values, indicating that 17 O-NMR spectroscopy is a useful technique to study the coordination chemistry of nonhydroxyl ligands to lanthanide ions in solution. Abstract :