The production of Te atoms by the multiphoton dissociation of diethyltelluride

Atmospheric pressure chemical vapour deposition of selenium and tellurium films by UV laser photolysis of diethyl selenium and diethyl tellurium

“…As shown previously, 11 the observed dominance of ethene over n-butane and ethane is not in keeping with the previously assumed 20 homolysis of the C-M bonds. In accordance with the known disproportionation (2C 2 H 5 Á → C 2 H 4 C 2 H 6 )/combination (2C 2 H 5 Á → n-C 4 H 10 ) rate ratio k d /k c for the ethyl radical ($0.13), 21 a clean M-C homolysis would have yielded n-butane in a large excess over equal amounts of ethane and ethene.…”

“…19 The ArF and KrF laser photolysis of diethyl tellurium was shown to be a one-photon process at pulse energies as low as 2-6 mJ. 8 This conclusion was also drawn for KrF laser photolysis of diethyl tellurium in the absence and excess of hydro- gen. [6][7][8]20 The linear dependence of the initial depletion rate of diethyl tellurium on the laser fluence (Fig. 1a) shows (see also Ref 11.…”

Laser Photolysis and Thermolysis of Organic Selenides and Tellurides for Chemical Gas-phase Deposition of Nanostructured Materials

“…It was revealed that neutral Te atoms are mostly produced in the ground and the lowest excited states. The preferred dissociation path in the 358-395 nm excitation region was considered [ 44 ] to be formation of neutral fragments ( Scheme 2 , path a). Under similar excitation conditions in the 510-400 nm region, ethyl ions and neutral Te atoms were found as the main products [ 45 ] and the proposed mechanism involves dissociation of a C 2 H 5 -Te + or (C 2 H 5 ) 2 Te + intermediate and fragments ( Scheme 2 , path b).…”