The introduction of hydroxy group to the 3- or 5-position of 4,4-difluoro-4-bora-3aAa-diazaindacene （BODIPY） results in unexpected tautomerization to BDPONa with interesting structural and photophysical properties. ...The introduction of hydroxy group to the 3- or 5-position of 4,4-difluoro-4-bora-3aAa-diazaindacene （BODIPY） results in unexpected tautomerization to BDPONa with interesting structural and photophysical properties. The core of BDPONa is an anion with sodium cation as counter-ion. BDPONa displays strong fluorescence in organic solvents.展开更多
Difluoroboronβ-diketonate(BF2bdk)complexes have attracted much attention due to their outstanding photophysical properties.However,BF2bdk with near-infrared fluorescence usually suffer from emission quenching in soli...Difluoroboronβ-diketonate(BF2bdk)complexes have attracted much attention due to their outstanding photophysical properties.However,BF2bdk with near-infrared fluorescence usually suffer from emission quenching in solid state due to theπ-πstacking in aggregation.Herein,we report a BF2bdk dye exhibiting donor-acceptor(D-A)structure with the difluoroboron moiety acting as the electron acceptor and the aminonaphthalene as the electron donor.It processes intense molar extinction coefficient,large Stokes shift and strong fluorescence in red/NIR region in both solution and aggregations.It was used for NIR imaging in living cells.展开更多
基金financially supported by the 973 program (Nos.2013CB933800,2013CB834505)National Natural Science Foundation of China (Nos.21222210,21102155,91027041)the Chinese Academy of Sciences (100 Talents Program)
文摘The introduction of hydroxy group to the 3- or 5-position of 4,4-difluoro-4-bora-3aAa-diazaindacene （BODIPY） results in unexpected tautomerization to BDPONa with interesting structural and photophysical properties. The core of BDPONa is an anion with sodium cation as counter-ion. BDPONa displays strong fluorescence in organic solvents.
基金financially supported by National Natural Science Foundation of China(No.21525206)
文摘Difluoroboronβ-diketonate(BF2bdk)complexes have attracted much attention due to their outstanding photophysical properties.However,BF2bdk with near-infrared fluorescence usually suffer from emission quenching in solid state due to theπ-πstacking in aggregation.Herein,we report a BF2bdk dye exhibiting donor-acceptor(D-A)structure with the difluoroboron moiety acting as the electron acceptor and the aminonaphthalene as the electron donor.It processes intense molar extinction coefficient,large Stokes shift and strong fluorescence in red/NIR region in both solution and aggregations.It was used for NIR imaging in living cells.
