Atmospheric chemistry of cis-CF3CH=CHCl(HCFO-1233zd(Z)): Kinetics of the gas-phase reactions with Cl atoms, OH radicals, and O-3

作者：Andersen Lene Loffler^*; Osterstrom Freja From; Andersen Mads P Sulbaek; Nielsen Ole John; Wallington Timothy J

来源：Chemical Physics Letters, 2015, 639: 289-293.

DOI：10.1016/j.cplett.2015.09.008

FTIR smog chamber techniques were used to measure the rate coefficients k(Cl +cis-CF3CH=CHCl)= (6.26 +/- 0.84) x 10(-11), k(OH + cis-CF3CH=CHCl)= (8.45 +/- 1.52) x 10(-13), and k(O-3 + cis-CF3CH=CHCl)= (1.53 +/- 0.12) v 10(-21) cm(3) molecule(-1) s(-1). The atmospheric lifetime of cis-CF3CH=CHCl is determined by reaction with OH radicals and is estimated to be 14 days. The infrared spectrum of cis-CF3CH=CHCl was recorded and the integrated absorption over the range 600-2000 cm(-1) was measured to be (1.48 +/- 0.07) v 10(-16) cm molecule(-1). Accounting for non-uniform horizontal and vertical mixing leads to a GWP(100) value of essentially zero. Correction to account for unwanted Cl atom chemistry in our previous relative rate study of the kinetics of the reaction of OH with trans-CF3CH=CHCl gives k(OH +/- trans-CF3CH=CHCl)= (3.61 +/- 0.37) v 10-13 cm(3) molecule(-1) s(-1).

• 出版日期2015-10-16