Trapped H and D Atoms in Alkane Glasses
The Journal of Physical Chemistry, Vol. 83, No. 20, 1979 2585
Effects of Molecular Structure and Temperature on the Tunneling Abstraction of D from C-D Bonds by Trapped H and D Atoms in Alkane Glasses at 5-29 K' H. Y. Wang and J.
E. Willard"
Deparfment of Chemistry, University of Wisconsin, Madison, Wisconsin 53706 (Received April 12, 1979) Publication costs assisted by the United States Department of Energy
The rates of the tunneling abstraction of D atoms from the C-D bonds of three idkane glasses at 5-29 K by trapped H or D atoms increase in the sequence 3-methylpentane-d14< 3-methylheptane-dla < methylcyclohexane-d,,. This parallels both the increasing density of the matrices and the increasing proportion of secondary + tertiary C-D bonds to primary C-D bonds. The apparent activation energy ( E A ) is
