Mark S. Gordon, Frances M. Craig Distinguished Professor of Chemistry at Iowa State University, was born and raised in New York City. After completing his B.S. in Chemistry in 1963, Professor Gordon entered the graduate program at Carnegie Institute of Technology, where he received his Ph.D. in 1967 under the guidance of Professor John Pople. Following a postdoctoral research appointment with Professor

Figure 4. Cycle of biologically driven N transformations that occur in natural and human-influenced terrestrial and marine environments. Nitrogen (N2) fixation (step 1) and N assimilation (from ammonium, nitrate, or organic N, step 2) are anabolic processes, whereas mineralization (step 3), nitrification (steps 4−6), DNRA (steps 7, 15), denitrification (steps 7−11), and anammox (anaerobic ammonium

This article is part of the Porous Framework Chemistry special issue. Mircea Dincă is the W. M. Keck Professor of Energy in the Department of Chemistry at MIT. His group’s research is broadly focused on understanding and changing materials’ physical and chemical properties through means that are not typically applicable to solids. He also gets excited about making new materials that combine canonically

The original version of the article contained a number of problems related to references that may lead to error propagation in the scientific literature. We would like to correct these issues, and sincerely apologize to the readers and reference authors for any confusion they might have caused. 1. ref 120 should be replaced with ref 146 to indicate ZnSe band gap, in section 2.2.2 2. ref 132 should