Experimental and theoretical investigation of electron attachment to SF(5)Cl.
Thermal electron attachment to SF(5)Cl has been studied with the flowing afterglow Langmuir probe technique. The rate coefficient is moderate, 4.8(+/-1.2)x10(-8) cm(3) s(-1), and invariant with temperature over the temperature range of 300-550 K. The reaction is dissociative, forming mainly SF(5) (-)+Cl. Minor yields of Cl(-) and FCl(-) were also found. The yields of the minor channels increase slightly with temperature. Statistical unimolecular rate modeling is employed to elucidate the character of the dissociation pathways and to support the assumption that the dissociations involve the formation of metastable anionic SF(5)Cl(-).
Van Doren
Jane M
JM
Department of Chemistry, College of the Holy Cross, Worcester, Massachusetts 01610-2395, USA. jvandoren@hanscom.af.mil
Miller
Thomas M
TM
Viggiano
Albert A
AA
Spanel
Patrik
P
Smith
David
D
Bopp
Joseph C
JC
Troe
Jürgen
J
D000838:Anions / Q000737:chemistry; D002713:Chlorine; D004583:Electrons; D005459:Fluorides / Q000737:chemistry*; D007700:Kinetics; D013457:Sulfur Compounds / Q000737:chemistry*; D013696:Temperature
D000838:Anions; D013457:Sulfur Compounds; C115613:sulfur pentafluoride cation; D002713:Chlorine; D005459:Fluorides