Air-Stable Cu(I) Metal–Organic Framework for Hydrogen Storage (Debabrata Sengupta, Patrick Mélix, Saptasree Bose, Joshua Duncan, Xingjie Wang, Mohammad Rasel Mian, Kent O. Kirlikovali, Faramarz Joodaki, Timur Islamoglu, Taner Yildirim, Randall Q. Snurr, Omar K. Farha)