1. Molecular Photonic Materials, van't Hoff Institute for Molecular Sciences, Universiteit van Amsterdam, Nieuwe Achtergracht 166, 1018 WS Amsterdam, The Netherlands, Vrije Universiteit, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands, Dipartimento di Chimica “G. Ciamician”, Università of Bologna, via F. Selmi 2, I-40126 Bologna, Italy, Institüt für Organische Chemie, Universität Regensburg, D-93040 Regensburg, Germany, and Laboratory for Crystallography, van't Hoff Institute for Molecular Sciences,...