J. R. Mulder, C. Fonseca Guerra, J. C. Slootweg, K. Lammertsma, F. M. Bickelhaupt
Substituent Effects on the Optical Properties of Naphthalene Diimides. A Frontier Orbital Analysis Across the Periodic Table
J. Comput. Chem. 2016, 37, 304-313 (Cover, for Paul Schleyer memorial issue).