G. Crowder, L. Gross
Nov 1, 1983
Citations
0
Influential Citations
16
Citations
Journal
Journal of Molecular Structure
Abstract
Abstract Liquid and solid-state infrared spectra were obtained for 2,2,3-trimethylbutane, 2,2,3-trimethylpentane, 2,2,4-trimethylpentane and 2,3,3-trimethylpentane, and were interpreted with the aid of normal coordinate calculations. Trimethylbutane, 2,2,3-trimethylpentane and 2,2,4-trimethylpentane each exist as only one conformer, but either two or three conformers of 2,3,3-trimethylpentane are present in the liquid state. Only one conformer is present in the crystalline solid, and it was identified as one with only four of the five chain carbons coplanar. The average error for 246 calculated frequencies assigned to observed values for the six molecules is 5.2 cm −1 , or 0.59%