title: Effect of hydrostatic pressure on N(CH3)4+ cation motion in ferroelectric N(CH3)4H(Cl3CCOO)2.
abstract: The proton spin-lattice relaxation time in ferroelectric N(CH3)4H(Cl3CCOO)2 has been studied under isobaric conditions at pressures 0.1, 200 and 400 MPa over a wide range of temperature. The data indicate that the dominant relaxation mechanism for T1 can be attributed to the classical CH3 group reorientation of N(CH3)4+ cation. The influence of pressure on methyl group reorientation of N(CH3)4+ cation was analysed.
authors.affiliation: Institute of Molecular Physics, Polish Academy of Sciences, Poznań.
authors.forename: M
authors.initials: M
authors.lastname: Zdanowska-Fraczek
authors.forename: S
authors.initials: S
authors.lastname: Lewicki
authors.forename: R
authors.initials: R
authors.lastname: Jakubas
authors.forename: J
authors.initials: J
authors.lastname: Wasicki
mesh_terms: D002414:Cations, Monovalent; D062845:Chloroacetates; D004563:Electrochemistry; D006874:Hydrostatic Pressure; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D000644:Quaternary Ammonium Compounds / Q000737:chemistry*; D013696:Temperature; D013816:Thermodynamics; D014238:Trichloroacetic Acid / Q000737:chemistry*
chemical_list: D002414:Cations, Monovalent; D062845:Chloroacetates; D000644:Quaternary Ammonium Compounds; C415150:tetramethylammonium hydrogen bis(trichloroacetate); D014238:Trichloroacetic Acid