Abstract
The crystal structure and molecular structure of solid hydrazine are discussed on the basis of a Zeeman study of the 14N NQR, proton spin-lattice relaxation measurement and some diffraction studies. The NQR data and the spin-lattice relaxation data support the space group C 2 2 rather than C 2 h 2. A model of the molecular motion that is governed by vacancy diffusion is proposed as a motion to which the relaxation mechanisms are due in the temperature range between 240 and 273 K. A calculation of T 1 is presented on the basis of the model, from which the correlation time τ is deduced to be 3 × 10 −4 seconds at 273 K.
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