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Marling等人用TEA CO_2激光多光子解离氟里昂123,潘大任等人用双频法做了同一实验,其反应机理都是氟里昂123分子中具有最低键能的碳一氯键开裂,以消去氯原子,终态产物是三氟乙烯,解离行为遵从统计的RRKM理论。我们用无氦TEA CO_2激光多光子解离氟里昂123(CF_8CHCI_2和CF_3CDCI_2的混合物),在激光强度为5J/cm~2,能流密度约为20J/cm~2,脉冲宽度为150ns的情况下,获得产物的红外吸收谱和质谱分析表明,得到的产物为六氟乙烷和丙二烯及其取代化合物。几乎无三氟乙烯
Marling et al. Used TEA CO 2 laser to dissociate Freon 123 by multi-photon laser and PAN Daren et al. Did the same experiment by the dual-frequency method. The reaction mechanism was the cracking of carbon-chlorine bond with the lowest bond energy in Freon 123 Elimination of chlorine atoms, the final product is trifluoroethylene, dissociation behavior to follow the statistical RRKM theory. We use multi-photon dissociation of Freon 123 (a mixture of CF_8CHCI_2 and CF_3CDCl_2) with a helium-free TEA CO_2 laser at a laser intensity of 5 J / cm 2, an energy density of about 20 J / cm 2 and a pulse width of 150 ns The IR spectra and mass spectra of the obtained products showed that the products obtained were hexafluoroethane and propadiene and their substituted compounds. Almost no Trifluoroethylene