Thermal decomposition of 1-pentyl radicals at high pressures and temperatures

Shock-tube studies at the National Institute of Standards and Technology (NIST) and the University of Illinois at Chicago (UIC) have been used to examine the decomposition of 1-pentyl radicals in argon between (833–1130) K and (100–5000) kPa. High pressure limiting values of the product branching ratios appear to be approached at the highest pressures studied. Results agree well with a ‘best-fit’ model previously developed [1] and are consistent with an energy transfer value 〈ΔEdown〉 = (675 ± 100) cm−1 at 1000 K.