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Optical activity of oriented molecules
The established theory of optical activity relates the activity to the mean electric dipole induced by the time-derivative of the magnetic field of the light wave and to the associated mean magneticExpand
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An N.M.R. study of molecular motion in solid trimethylaminegallane
Continuous wave and pulsed 1H N.M.R. data have been obtained for solid H3GaN(CH3)3 over the temperature range 63–300 K. A theoretical expression for the relaxation behaviour of a methyl group in aExpand
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The addition of optically active compounds to nematic liquid crystals
Abstract Addition of small optically active solute molecules to nematic liquid crystals leads to a continuous change to a cholesteric mesophase. Thus nematic mesophases are not suitable for orientingExpand
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NMR lineshapes of ammonium ions undergoing quantum mechanical tunnelling in the solid state at low temperatures
Abstract Calculations have been made of the 1H NMR powder lineshape of ammonium ions undergoing quantum mechanical tunnelling through the potential barrier to reorientation in the solid state.Expand
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The effect of lanthanide shift reagents on the NMR spectra of molecules partially oriented in a nematic phase: Pyridine
Abstract Results of a study of pyridine oriented in a nematic phase in the presence of the lanthanide shift reagent, tris (dipivalomethanato) europium(III) are reported. The shift reagent does notExpand
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RICHARDS BAY COAL TERMINAL
Terminals form part of the transportation chain from producer to consumer in the world-wide conveyance of bulk commodities. As such, they are a vital link in providing a buffer between widelyExpand
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Nuclear spin relaxation of sulphur hexafluoride in its clathrate deuterate
Abstract 19 F spin-lattice relaxation time data for the sulphur hexafluoride clathrate deuterate over the temperature range 40-250 °K have been analysed in terms of relaxation by both dipole—dipoleExpand
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