Abstract
Alkyl-chain dynamics in the mixed-valent dodecylamine-intercalated vanadium oxide nanosheets (C12VONS) was investigated by means of 400-MHz 1H nuclear magnetic resonance. Two C12VONS samples with distinct alkylammonium-to-alkylamine ratios showed distinct alkyl-chain dynamics, the alkylammonium chains being apparently more disordered than the alkylamine chains. The high-temperature spin-lattice relaxation is dominated by the conformational chain defects and the reorientational motions of the alkyl chains, respectively, in the alkylammonium-abundant system and in the alkylamine-abundant system. The reorientational and conformational changes of the alkyl chains appear to be uncorrelated with the magnetic transitions.
Original language | English |
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Pages (from-to) | 1052-1056 |
Number of pages | 5 |
Journal | Solid State Communications |
Volume | 152 |
Issue number | 12 |
DOIs | |
Publication status | Published - 2012 Jun |
Keywords
- A. Mixed-valent dodecylamine-intercalated vanadium oxide nanosheets
- D. Alkyl-chain dynamics
- D. Phase transition
- E. Nuclear magnetic resonance
ASJC Scopus subject areas
- Chemistry(all)
- Condensed Matter Physics
- Materials Chemistry