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Boron-Locked Starazine - A Soluble and Fluorescent Analogue of Starphene.

Yi FengJiadong ZhouHonglin QiuMatthias SchnitzleinJingtao HuLinlin LiuFrank WürthnerZengqi Xie
Published in: Chemistry (Weinheim an der Bergstrasse, Germany) (2022)
A starlike heterocyclic molecule containing an electron-deficient nonaaza-core structure and three peripheral isoquinolines locked by three tetracoordinate borons, namely isoquinoline-nona-starazine (QNSA), is synthesized by using readily available reactants through a rather straightforward approach. This new heteroatom-rich QNSA possesses a quasi-planar π-backbone structure, and bears phenyl substituents on borons which protrude on both sides of the π-backbones endowing it with good solubility in common organic solvents. Contrasting to its starphene analogue, QNSA shows intense fluorescence with a quantum yield (PLQY) of up to 62 % in dilute solution.
Keyphrases
  • energy transfer
  • quantum dots
  • molecular dynamics
  • single molecule
  • solid state
  • living cells
  • water soluble
  • label free