Notes. Molecules are sorted by increasing T_peak value. ^(a) The T_peak is determined from a desorption profile simulated with a first-order Polanyi-Wigner equation, surface coverage of 1 × 10¹⁵ molecules cm⁻², and heating rate of 1 K century⁻¹. Note that these mean values in many cases consists of a superposition of binding environments, many of which are not relevant to interstellar environments (i.e. metallic surfaces). These values should be taken as the best available.