Cerium tetrakis(tropolonate) and cerium tetrakis(acethylacetonate) are not diamagnetic but temperature-independent paramagnets (Inorganic Chemistry (2018) 57:12 (7290-7298) DOI: 10.1021/acs.inorgchem.8b00928) Page 7295. In the Summary section of the article, the text should read “The energy of the closed-shell singlet that corresponds to the traditional Lewis structures used to represent these molecules is 400–700 cm–1 above the open-shell triplet and singlet.” instead of “The energy of the open-shell singlet that corresponds to the traditional Lewis structures used to represent these molecules is 400–700 cm–1 above the open-shell triplet.”