Solid phases of 2,3-dimethylbutane
Abstract
The results of nuclear magnetic resonance, X-ray and thermal measurements on solid 2,3-dimethylbutane in the temperature range 80–160 K are reported. It is concluded that two amorphous phases and at least two crystalline phases exist in this temperature range: transitions to the crystalline state can occur from either of the amorphous phases. At 80 K the crystalline state is found to be orthorhombic with cell dimensions 12.51, 10.13 and 4.74 Å.