Chemical Papers p. 553 - 558 (2011)
Update date:2022-09-26
Topics:
Lv, Yongjun
Xu, Jian
Guo, Yong
Shao, Shijun
A novel dicalix[4]pyrrolyl-substituted 4,4-difluoro-4-bora-3a,4a-diaza-s- indacene (BODIPY) dye I with an absorption peak at approximately 670 nm and an emission peak at about 690 nm was prepared. As an anion receptor, I displayed a red shift in absorption spectra and fluorescence quenching in varying degrees in the presence of F-, AcO-, H2PO -4 , or Cl-. Compared with the parent calix[4]pyrrole, a representative anion receptor, I exhibited a stronger affinity to these anions due to the formation of a sandwich complex through multiple hydrogen-bonding interactions.
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(2011)
