Seminar by Prof. John F. Ogilvie, Simon Fraser University, Canada

Title : Photochemistry of Methane at 3 K


We have subjected pure solid methane and methane dispersed in solid
neon, all at 3 K, to irradiation from a synchrotron in the wave length
range 120 -  165 nm, and recorded the infrared spectrum of the products
as a function of wave length of irradiation, molar fraction of methane
in neon and cumulative duration of photolysis.  Some thirty products
are identified, including such free radicals as CHn, 1 <= n <= 5, and
carbon chains up to C20.  The mechanism of the reactions is discussed.