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No.2(pp.41-75)

Home > Issues > Volume 10 (2005) > No.2(pp.41-75)

Nuclear Magnetic Relaxaon Study of the Organic-Inorganic Hybrid Systems (C_nH_2n+NH3)₂SnCl₆

Journal of Magnetics, Volume 10, Number 2, 30 Jun 2005, Pages 63-65

Kyu Won Lee(Department of Physics and Institute for Nano Science, Korea University), Cheol Eui Lee*

(Department of Physics and Institute for Nano Science, Korea University)

Abstract

The ¹H NMR spin-lattice relaxation in a series of the organic-inorganic hybrid systems (C_nH_2n+NH3)₂SnCl₆(n = 8, 10, 12, 14) undergoing two successive phase transitions was studied. A discontinuity characteristic of a first order phase transition was observed at the high-temperature conformational transition. Besides, the spin-lattice relaxation rate below the conformational transition temperature was well fitted by four types of molecular motions, from which the chain-length dependence of the activation energies of the molecular groups was obtained.

Keywords: Nuclear magnetic relaxation; Organic-inorganic hybrid systems; Phase transitions

DOI:

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