Molecular Parameters of Ethane

The combination band ν2+ν6 of ethane at 2754 cm—1 has been studied under high resolution. The value of B0 has been found to be 0.66310±0.00007 cm—1. When this value is combined with values of A0 of C2H6 and B0 for C2D6 determined in other studies, the following parameters are obtained: r0(C–C) = 1.536 A, r0(C–H) = 1.108 A, and ∠C–C–H = 110.1°.