Journal of Chemical Physics
The proton nuclear spin-lattice relaxation times at 30 MHz have been measured for ortho- and paracarborane between 170 and 310 K and between 210 and 320 K, respectively. Para-carborane undergoes solid-solid transitions at about 300 and 238 K while the ortho isomer shows only one transition at about 265 K. The details of the phase transitions are discussed and molecular reorientation in the isomers is compared.
Copyright (1980) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in J. Chem. Phys. 72, 4600 (1980) and may be found at http://jcp.aip.org/resource/1/jcpsa6/v72/i8/p4600_s1.
P. Beckmann and A.J. Leffler, J. Chem. Phys. 72, 4600 (1980).