TY - JOUR A1 - Nadykto, A. B. A1 - Yu, F. A1 - Herb, J. T1 - Ammonia in positively charged pre-nucleation clusters: a quantum-chemical study and atmospheric implications JO - Atmos. Chem. Phys. J1 - ACP VL - 9 IS - 12 SP - 4031 EP - 4038 Y1 - 2009/06/18 PB - Copernicus Publications SN - 1680-7324 UR - https://acp.copernicus.org/articles/9/4031/2009/ L1 - https://acp.copernicus.org/articles/9/4031/2009/acp-9-4031-2009.pdf DO - 10.5194/acp-9-4031-2009 ER -