title: Optimized Two-Dimensional NLO Chromophores with a Threefold Symmetry Axis The authors would like to thank the Volkswagenstiftung and the Fonds der Chemischen Industrie for generous financial supports of this work.
authors.affiliation: Organisch-chemisches Institut der Ruprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 270, 69120 Heidelberg (Germany).
authors.initials: JJ
authors.lastname: Wolff
authors.initials: F
authors.lastname: Siegler
authors.initials: R
authors.lastname: Matschiner
authors.initials: R
authors.lastname: Wortmann