Mechanistic studies on the formation of trifluoromethyl sulfur pentafluoride, SF5CF3 -: a greenhouse gas

被引：10

作者：

Carrier, William ^{[1
]}

Jamieson, Corey S. ^{[1
]}

Kaiser, Ralf I. ^{[1
]}

机构：

[1] Univ Hawaii Manoa, Dept Chem, Honolulu, HI 96822 USA

来源：

INORGANIC CHEMISTRY | 2007年 / 46卷 / 04期

关键词：

D O I：

10.1021/ic0618450

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The formation of SF5CF3(X(1)A'), through the radical-radical recombination of SF5(X(2)A(1)) and CF3(X(2)A(1)), was observed for the first time in low-temperature sulfur hexafluoride-carbon tetrafluoride matrices at 12 K via infrared spectroscopy upon irradiation of the ices with energetic electrons. The nu(1) fundamentals of the SF5(X(2)A(1)) and CF3(X(2)A(1)) radicals were monitored at 857 and 1110 cm(-1), respectively; the newly formed trifluoromethyl sulfur pentafluoride molecule, SF5CF3(X(1)A'), was detected via its absorptions at 846 and 1160 cm(-1). This formation mechanism suggests that a source for this potentially dangerous greenhouse gas might be the recombination of SF5(X(2)A(1)) and CF3(X(2)A(1)) radicals on aerosol particles in the terrestrial atmosphere.

引用

页码：1332 / 1336

页数：5

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