Reaction of dication C++ with molecular hydrogen at temperature 20 K

Synopsis The reaction of dication C ++ with H 2 was studied at temperature 20 K using a linear 22-pole radiofrequency ion trap. The overall reaction rate coefficient was measured as 1.4 ± 0.3 × 10 −10 cm 3 s −1 . The upper limit for formation of CH + in this reaction was evaluated as 4 × 10 −12 cm 3 s −1 .