论文信息 - An 1H NMR Study on the Motion of Guanidinium Cations in Some Crystals Formed with Tetrahedral or Octahedral Complex Anions Having Halide Ions as Ligands

An 1H NMR Study on the Motion of Guanidinium Cations in Some Crystals Formed with Tetrahedral or Octahedral Complex Anions Having Halide Ions as Ligands

The temperature dependences of 1H NMR spin-lattice relaxation times were determined at 20 MHz for [C(NH2)3]2ZnX4 (X=Cl, Br), [C(NH2)3]2MCl6 (M=Sn, Te, Pt), and [C(NH2)3]2PtBr6. Above room temperature, the D3h cation undergoes reorientational motion by 120° about the cationic C3 axis. For [C(NH2)3]2TeCl6 crystals, two phase transitions were located at 312 and 373 K.

Y. Furukawa | D. Nakamura

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