Abstract
Continuous-wave and pulsed CO 2 laser-induced and SF 6-photosensitized pyrolysis of dimethyl selenium yields methane, ethene and ethane as three major gaseous products, and affords chemical vapor deposition (CVD) of a composite of elemental selenium and polymer that is assigned from FTIR and X-ray photoelectron spectra (XPS) as poly(selenoformaldehyde). The mechanism of the pyrolysis is discussed in terms of radical paths and transient formation of selenoformaldehyde.
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