Thanks to development of infrared and mm/submm instruments, more than 170 molecules have been detected in the interstellar medium (ISM). Complexity of the detected molecules is increasing, and now ALMA (Atacama Large Millimeter/submillimeter Array) is challenging to detect amino acids in the ISM. On the other hand, amino acids have been discovered in comets and meteorites in our Solar System, and it is an open question how the complex organic molecules in our Solar System have been formed from the molecules found in the ISM.

Formation processes of complex organic molecules in space are not understood very well, but grain surface chemistry is thought to play an important role. Modelling grain surface chemistry has been developed for decades, but it still contains many uncertainties due to difficulty in laboratory experiments and theoretical calculations.

In this workshop we would like to discuss how we can develop chemical reaction network of grain surface reactions/icy mantle reactions based on laboratory experiments and theoretical calculations of basic processes. We aim to understand formation processes of complex organic molecules/ prebiotic molecules found in comets and meteorites through chemical reactions in protoplanetary disks and molecular clouds.

We look forward to fruitful discussions with participants working on laboratory experiments, theoretical calculations of basic processes and chemical reaction network, astronomical observations of complex organic molecules, and wide range of fields.

The workshop is financially supported from the Astrobiology Project of the CNSI, NINS.