Browsing by Author "Whidden, Charles J."
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- Nuclear quadrupole resonance of Na23 in NaBrO3Whidden, Charles J. (Virginia Polytechnic Institute, 1968)The temperature and pressure dependences of the nuclear quadrupole coupling frequency of Na23 in NaBrO3 have been measured, The quadrupole frequency is found to range from 886 kHz. at 4.1 °K to 849 kHz. at 300 °K at atmospheric pressure. The pressure dependences were determined at 196, 273 and 298 °K. From the pressure dependences and the compressibility the frequency was found to vary with the volume about as V-2.5 at all three temperatures. The rate of change in frequency with temperature at a constant volume, 1/v(∂v/∂T)V, was found to have a positive value and to decrease in magnitude with increasing temperature above 196 °K.