TY - JOUR AU - Sanz-Novo, M. AU - Belloche, A. AU - Rivilla, V. M. AU - Garrod, R. T. AU - Alonso, J. L. AU - Redondo, P. AU - Barrientos, C. AU - Kolesniková, L. AU - Valle, J. C. AU - Rodríguez-Almeida, L. AU - Jimenez-Serra, I. AU - Martín-Pintado, J. AU - Müller, H. S. P. AU - Menten, K. M. PY - 2022 SN - 0004-6361 UR - https://uvadoc.uva.es/handle/10324/80089 AB - Context. In recent times, large organic molecules of exceptional complexity have been found in diverse regions of the interstellar medium. Aims. In this context, we aim to provide accurate frequencies of the ground vibrational state of two key... LA - spa TI - Toward the limits of complexity of interstellar chemistry: Rotational spectroscopy and astronomical search for n- and i-butanal DO - 10.1051/0004-6361/202142848 ER -