Removal rates of CHF (Ã 1A″ (0, 0, 0)) by alkenes

✍ Scribed by A. Ortiz de Zárate; F. Castaño; J.A. Fernandez; R. Martinez; M.N. Sánchez Rayo; G. Hancock

• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 358 KB
• Volume: 188
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(92)90020-n

✦ Synopsis

Absolute remqval rates of CHF (AlA" (0, 0,O) ) by ethene (C2Hd), propene (CsH6), l-butene (l-C&s), isobutene (CGHd, 1,3-butadiene ( C,H6), difluoromethane (CH2F2), nitric oxide (NO) and argon (Ar) have been measured at room temperature.

CNF in the A 'A" state was produced by infrared multiphoton dissociation of CHIF2 forming the CHF (2 'A' ) state and further pumping to the A 'A" state by absorption of a visible dye laser pulse. Removal processes were found to be second order with the following rate constants in units of lo-lo cm3 molecule-' s-l: k(CzHd)=0.9k0.2; k(C,H6)= l.OkO.2; k( l-C,Hs)= 1.1 fO.2: k(CC,H,)=l.1~0.2;k(C,H,)=1.0+0.2;k(Ar)=0.27f0.02;k(NO)=0.8~0.l;k(CH,F,)~l.3~0.l.TheP~enter-Seaver correlation for collisional removal of A 'A" CHF is discussed.