@article{KarGehrigAllampallyetal.2016,
  author    = {Kar, Haridas and Gehrig, Dominik W. and Allampally, Naveen Kumar and Fern{\´a}ndez, Gustavo and Laquai, Fr{\´e}d{\´e}ric and Ghosh, Suhrit},
  title     = {Cooperative supramolecular polymerization of an amine-substituted naphthalene-diimide and its impact on excited state photophysical properties},
  series = {Chemical Science},
  volume    = {7},
  journal   = {Chemical Science},
  number    = {2},
  doi       = {10.1039/c5sc03462k},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-191459},
  pages     = {1115-1120},
  year      = {2016},
  abstract  = {A donor-acceptor-donor (D-A-D) type naphthalene-diimide (NDI-H) chromophore exhibits highly cooperative J-aggregation leading to nanotubular self-assembly and gelation in n-decane, as demonstrated by UV/Vis, FT-IR, photoluminescence and microscopy studies. Analysis of temperature-dependent UV/Vis spectra using the nucleation-elongation model and FT-IR data reveals the molecular origin of the cooperative nature of the self-assembly. The supramolecular polymerization is initiated by H-bonding up to a degree of polymerization similar to 20-25, which in a subsequent elongation step promotes J-aggregation in orthogonal direction leading to possibly a sheet-like structure that eventually produces nanotubes. Time-resolved fluorescence and absorption measurements demonstrate that such a tubular assembly enables very effective delocalization of excited states resulting in a remarkably prolonged excited state lifetime.},
  language  = {en}
}
@article{BaeumerKarthaAllampallyetal.2019,
  author    = {B{\"a}umer, Nils and Kartha, Kalathil K. and Allampally, Naveen Kumar and Yagai, Shiki and Albuquerque, Rodrigo Q. and Fern{\´a}ndez, Gustavo},
  title     = {Kontrolle {\"u}ber Selbstassemblierung durch Ausnutzung von Koordinationsisomerie},
  series = {Angewandte Chemie},
  volume    = {131},
  journal   = {Angewandte Chemie},
  number    = {44},
  doi       = {10.1002/ange.201908002},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-212176},
  pages     = {15772 -- 15776},
  year      = {2019},
  abstract  = {Hierin wird die inh{\"a}rente geometrische Isomerie eines PtII Komplexes als neues Werkzeug zur Kontrolle von supramolekularen Assemblierungsprozessen ausgenutzt. Bestrahlung mit UV-Licht sowie die sorgf{\"a}ltige Auswahl des verwendeten L{\"o}sungsmittels, der Temperatur und Konzentration f{\"u}hren zu einer regelbaren Koordinationsisomerie. Dies erm{\"o}glicht ein vollst{\"a}ndig reversibles Schalten zwischen zwei definierten aggregierten Spezies (1D Fasern ↔ 2D Lamellen) mit unterschiedlichem photoresponsivem Verhalten. Unsere Erkenntnisse erweitern nicht nur die Reichweite von Koordinationsisomerie, sondern er{\"o}ffnen auch aufregende M{\"o}glichkeiten zur Entwicklung neuartiger stimuliresponsiver Materialien.},
  language  = {de}
}
@article{BaeumerKarthaKumarAllampallyetal.2019,
  author    = {B{\"a}umer, Nils and Kartha, Kalathil K. and Kumar Allampally, Naveen and Yagai, Shiki and Albuquerque, Rodrigo Q. and Fern{\´a}ndez, Gustavo},
  title     = {Exploiting Coordination Isomerism for Controlled Self-Assembly},
  series = {Angewandte Chemie International Edition},
  volume    = {58},
  journal   = {Angewandte Chemie International Edition},
  doi       = {10.1002/anie.201908002},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-221362},
  pages     = {15626-15630},
  year      = {2019},
  abstract  = {We exploited the inherent geometrical isomerism of a PtII complex as a new tool to control supramolecular assembly processes. UV irradiation and careful selection of solvent, temperature, and concentration leads to tunable coordination isomerism, which in turn allows fully reversible switching between two distinct aggregate species (1D fibers↔2D lamellae) with different photoresponsive behavior. Our findings not only broaden the scope of coordination isomerism, but also open up exciting possibilities for the development of novel stimuli-responsive nanomaterials.},
  language  = {en}
}