Translational energy flux distributions (top-left panel) and center-of-mass angular (bottom-left panel) and the top view of the flux contour map (right) leading to the synthesis of the 1-ethynyl-3-silacyclopropenylidene molecule (c-SiC₄H₂) plus atomic hydrogen in the reaction of the silylidyne radical with diacetylene. Hatched areas indicate the acceptable upper and lower error limits of the fits. The solid red lines define the best-fit function to replicate the laboratory data as shown in Figure 3. The flux contour map represents the flux intensity of the reactive scattering products as a function of the CM scattering angle (θ) and product velocity (u). The color bar indicates the flux gradient from high (H) intensity to low (L) intensity.