摘要
In this report we investigated two-dimensionally triptycene end-capped QPPs in terms of their solution and solid-state behavior.For this purpose,a triphenylene based ortho-diamine decorated with two triptycenyl units as well as a phenylene diamine with two non-annulated triptycene units have been synthesized.Sequences of condensation reactions with a pyrene-based tetraketone and ortho-diamines yielded a series of QPPs and UV/Vis investigations of the corresponding compounds led to the conclusion,that the QPPs form dimers in solution,which was further supported by MALDI-TIMS-TOF-MS.Single-crystal X-ray analysis of the triply and quadruply triptycene end-capped QPPs furthermore showed shortπ-π-distances of 3.3-3.4?and a perfect shape match during the dimerization of the triply triptycenyl end-capped QPP making it possible synthon for crystal engineering.
基金
grateful to"Deutsche Forschungsgemeinschaft"supporting this project(SFB1249"N-heteropolycyclic compounds as functional materials"TP-A04).support by the state of Baden-Wurttemberg through bwHPC and the German Research Foundation(DFG)through grant no.INST 40/575-1 FUGG(JUSTUS 2 cluster).
