The aim of the presented work is to analyze the impact of experimentally evaluated reactions of hydrogen abstraction on surfaces of interstellar grains on the chemical evolution of methanol and its precursors on grains and in the gas phase under conditions of a cold dark cloud and during the collapse of a translucent cloud into a dark cloud. Analysis of simulation results shows that those reactions are highly efficient destruction channels for HCO and H₂CO on grain surfaces, and significantly impact the abundances of almost all molecules participating in the formation of CH₃OH. Next, in models with those reactions, maximum abundances of methanol in gas and on grain surfaces decrease by more than 2–3 orders of magnitude in comparison to models without surface abstraction reactions of hydrogen. Finally, we study the impact of binding energies of CH₂OH and CH₃O radicals on methanol chemistry.

所提出的工作的目的是分析实验评估的星际颗粒表面氢提取反应对甲醇及其前体在冷暗云条件下和坍缩期间在颗粒和气相中的化学演化的影响半透明的云变成了乌云。_{模拟结果分析表明，这些反应是HCO和H 2} CO在晶粒表面的高效破坏通道，并且显着影响几乎所有参与CH _{3形成的分子的丰度。}哦。接下来，在具有这些反应的模型中，与没有氢表面提取反应的模型相比，气体和晶粒表面上的甲醇最大丰度降低了 2-3 个数量级以上。最后，我们研究了 CH ₂ OH 和 CH ₃ O 自由基的结合能对甲醇化学的影响。