To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie S1. The HONO formation observed in the metadynamics simulation of the monohydrate system. Formation of HONO from the NH3-promoted hydrolysis of NO2 dimers in the atmosphere Lei Li, Zhiyao Duan, Hui Li, Chongqin Zhu, Graeme Henkelman, Joseph S. Francisco, and Xiao Cheng Zeng PNAS. 2018. 115:7236-7241 DOI: 10.1073/pnas.1807719115 Download Original Video Browse All Videos »