Dissociative recombination of fully deuterated protonated acetonitrile, CD3CND+: product branching fractions, absolute cross section and thermal rate coefficient.
The dissociative recombination of fully deuterated protonated acetonitrile, CD(3)CND(+), has been investigated at the CRYRING heavy ion storage ring, located at the Manne Siegbahn Laboratory, Stockholm, Sweden. Branching fractions were measured at approximately 0 eV relative collision energy between the ions and the electrons and in 65% of the DR events there was no rupture of bonds between heavy atoms. In the remaining 35%, one of the bonds between the heavy atoms was broken. The DR cross-section was measured between approximately 0 eV and 1 eV relative collision energy. In the energy region between 1 meV and 0.1 eV the cross section data were best fitted by the expression sigma = 7.37 x 10(-16) (E/eV)(-1.23) cm(2), whereas sigma = 4.12 x 10(-16) (E/eV)(-1.46) cm(2) was the best fit for the energy region between 0.1 and 1.0 eV. From the cross section a thermal rate coefficient of alpha(T) = 8.13 x 10(-7) (T/300)(-0.69) cm(3) s(-1) was deduced.
Vigren
Erik
E
Department of Physics, AlbaNova, Stockholm University, Stockholm, Sweden.
Kamińska
Magdalena
M
Hamberg
Mathias
M
Zhaunerchyk
Vitali
V
Thomas
Richard D
RD
Danielsson
Mathias
M
Semaniak
Jacek
J
Andersson
Patrik U
PU
Larsson
Mats
M
Geppert
Wolf D
WD
D000097:Acetonitriles / Q000737:chemistry*; D003903:Deuterium / Q000737:chemistry*; D008956:Models, Chemical; D008958:Models, Molecular; D011522:Protons; D013696:Temperature
D000097:Acetonitriles; D011522:Protons; D003903:Deuterium; C032159:acetonitrile