“Hydrogen Evolution from Water Reactions with Molybdenum Sulfide Cluster Anions,” Josey E. Topolski, Ankur K. Gupta, Kathleen A. Nickson, Krishnan Raghavachari, and Caroline Chick Jarrold, International Journal of Mass Spectrometry, 434, 193-201 (2018). https://doi.org/10.1016/j.ijms.2018.09.019 Helmut Schwarz Honor Issue of IJMS