Phase transitions in layer structured (C10H21 NH3)2SnCl6

K. W. Lee, M. W. Park, C. Rhee, Cheol Eui Lee, J. K. Kang, K. W. Kim, K. S. Lee

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Phase transitions in the quasi-two-dimensional layer structured (C10H21NH3)2SnCl6, an order-disorder transition and a conformational transition of the hydrocarbon chains, were studied by means of 1H NMR (nuclear magnetic resonance). A newly defined order parameter in the low-temperature phase, the dipolar splitting of the rigid hydrocarbon lineshape component, was shown to represent the order-disorder motion of the hydrocarbon chains, explicitly revealing its three-dimensionality. The conformational transition was marked by a discontinuity in the spin-lattice relaxation rate (1/T1). On the other hand, no obvious anomaly was observed in the spin-lattice relaxation rate at the order-disorder transition at 200 MHz, whereas a weak anomaly was observed at 45 MHz, indicating that the critical dynamics associated with the order-disorder transition is manifest in the low-frequency region of the spectral density.

Original languageEnglish
Pages (from-to)3019-3022
Number of pages4
JournalJournal of Chemical Physics
Volume108
Issue number7
Publication statusPublished - 1998 Feb 15

Fingerprint

Order disorder transitions
Hydrocarbons
Phase transitions
Spin-lattice relaxation
disorders
hydrocarbons
spin-lattice relaxation
Spectral density
anomalies
Nuclear magnetic resonance
discontinuity
low frequencies
nuclear magnetic resonance
Temperature

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Lee, K. W., Park, M. W., Rhee, C., Lee, C. E., Kang, J. K., Kim, K. W., & Lee, K. S. (1998). Phase transitions in layer structured (C10H21 NH3)2SnCl6 Journal of Chemical Physics, 108(7), 3019-3022.

Phase transitions in layer structured (C10H21 NH3)2SnCl6 . / Lee, K. W.; Park, M. W.; Rhee, C.; Lee, Cheol Eui; Kang, J. K.; Kim, K. W.; Lee, K. S.

In: Journal of Chemical Physics, Vol. 108, No. 7, 15.02.1998, p. 3019-3022.

Research output: Contribution to journalArticle

Lee, KW, Park, MW, Rhee, C, Lee, CE, Kang, JK, Kim, KW & Lee, KS 1998, 'Phase transitions in layer structured (C10H21 NH3)2SnCl6 ', Journal of Chemical Physics, vol. 108, no. 7, pp. 3019-3022.
Lee KW, Park MW, Rhee C, Lee CE, Kang JK, Kim KW et al. Phase transitions in layer structured (C10H21 NH3)2SnCl6 Journal of Chemical Physics. 1998 Feb 15;108(7):3019-3022.
Lee, K. W. ; Park, M. W. ; Rhee, C. ; Lee, Cheol Eui ; Kang, J. K. ; Kim, K. W. ; Lee, K. S. / Phase transitions in layer structured (C10H21 NH3)2SnCl6 In: Journal of Chemical Physics. 1998 ; Vol. 108, No. 7. pp. 3019-3022.
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