Table 1 Peak velocities (vp) and speed ratios (S) of the 1-propynyl (CH3CC), benzene (C6H6), and D6-benzene (C6D6) beams along with the corresponding collision energies (EC) and center-of-mass angles (ΘCM).

From: A Barrierless Pathway Accessing the C9H9 and C9H8 Potential Energy Surfaces via the Elementary Reaction of Benzene with 1-Propynyl

Beam

vp

(m s−1)

S

EC

(kJ mol−1)

ΘCM

(degree)

CH3CC (X2A1)

1658 ± 12

7.1 ± 0.3

  

C6H6 (X1A1g)

622 ± 10

19.3 ± 0.6

40.8 ± 0.5

36.9 ± 0.5

C6D6 (X1A1g)

623 ± 9

19.3 ± 0.4

41.8 ± 0.6

39.0 ± 0.5

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