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@ARTICLE{Tian:593081,
      author       = {Tian, Xiaoqi and Shoyama, Kazutaka and Mahlmeister,
                      Bernhard and Brust, Felix and Stolte, Matthias and
                      Wuerthner, Frank},
      title        = {{N}aphthalimide-{A}nnulated [ n ]{H}elicenes: {R}ed
                      {C}ircularly {P}olarized {L}ight {E}mitters},
      journal      = {Journal of the American Chemical Society},
      volume       = {145},
      number       = {17},
      issn         = {0002-7863},
      address      = {Washington, DC},
      publisher    = {ACS Publications},
      reportid     = {PUBDB-2023-05265},
      pages        = {9886 - 9894},
      year         = {2023},
      note         = {DFG Grant WU 317/20-2, DFG Projektnummer 444286426},
      abstract     = {Two [n]heliceno-bis(naphthalimides) 1 and 2 (n = 5 and 6,
                      respectively) where two electron-accepting naphthalimide
                      moieties are attached at both ends of helicene core were
                      synthesized by effective two-step strategy, and their
                      enantiomers could be resolved by chiral stationary-phase
                      high-performance liquid chromatography (HPLC). The
                      single-crystal X-ray diffraction analysis of enantiopure
                      fractions of 1 and 2 confirmed their helical structure, and
                      together with experimental and calculated circular dichroism
                      (CD) spectra, the absolute configuration was unambiguously
                      assigned. Both 1 and 2 exhibit high molar extinction
                      coefficients for the $S_0–S_1$ transition and high
                      fluorescence quantum yields (73\% for 1 and 69\% for 2),
                      both being outstanding for helicene derivatives. The red
                      circularly polarized luminescence (CPL) emission up to 615
                      nm for 2 with CPL brightness (BCPL) up to 66.5 M$^{–1}$
                      cm$^{–1}$ demonstrates its potential for applications in
                      chiral optoelectronics. Time-dependent density functional
                      theory (TD-DFT) calculations unambiguously showed that the
                      large transition magnetic dipole moment |m| of 2 is
                      responsible for its high absorbance dissymmetry $(g_{abs})$
                      and luminescence dissymmetry $(g_{lum})$ factor.},
      cin          = {DOOR ; HAS-User},
      ddc          = {540},
      cid          = {I:(DE-H253)HAS-User-20120731},
      pnm          = {6G3 - PETRA III (DESY) (POF4-6G3) / DFG project 444286426 -
                      Hybrid-Spektrometer (444286426)},
      pid          = {G:(DE-HGF)POF4-6G3 / G:(GEPRIS)444286426},
      experiment   = {EXP:(DE-H253)P-P11-20150101},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {37083394},
      UT           = {WOS:000981137300001},
      doi          = {10.1021/jacs.3c03441},
      url          = {https://bib-pubdb1.desy.de/record/593081},
}