Abstract
13C magic-angle-spinning NMR spectra in solid were measured in mixed-metal 1-D complexes [Ni1-xPdxX(chxn)2]X2 (X: Cl, Br; 0.0≤x ≤1.0) where the antiferromagnetically coupled paramagnetic -X-Ni3+-X-Ni3+- chains are formed at x = 0.0, while the mixed-valence -X-Pd2+-X-Pd4+- state is made at x = 1.0. Upon increasing x from 0.0, 13C spectra in the Cα position in the chxn ligand was broadened and shifted from original Pd2+ and Pd4+ positions indicating the fluctuation of Pd valency in mixed states. A marked spectrum broadening observed in Cβ is also attributable to the effect from the partial mixing of paramagnetic Pd3+sites in consistent with reported ESR results.
Original language | English |
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Pages (from-to) | 777-778 |
Number of pages | 2 |
Journal | Synthetic Metals |
Volume | 120 |
Issue number | 1-3 |
DOIs | |
Publication status | Published - 2001 Mar 15 |
Externally published | Yes |
Keywords
- Nuclear Magnetic Resonance Spectroscopy
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry