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Published on: May 2, 2019
3D-Conformer of Tris[60]fullerenylated cis-Tris(diphenylamino-fluorene) as Photoswitchable Charge-Polarizer on
He Yin1, Min Wang2, Tzuyang Yu3
1Department of Chemistry, University of Massachusetts Lowell, Lowell, MA 01854, USA. He_Yin@student.uml.edu.
Abstract:
Novel 3D-configurated stereoisomers cis-cup-tris[C60>(DPAF-C₉)] and trans-chair-tris[C60>(DPAF-C₉)] were designed and synthesized in good yields. The former, with three C60> cages per molecule facing at the same side of the geometrical molecular cup-shape, was proposed to provide excellent binding interaction forces at the gold surface of core-shell γ-FeOx@AuNP nanoparticles and to direct the subsequent formation of a fullerene cage array (defined as fullerosome). Upon photoactivation of the Au-layer and cis-cup-tris[C60>(DPAF-C₉)] itself, the degree of photoinduced intramolecular e--transfer from DPAF to a C60> moiety was found to be largely enhanced by the accumulated plasmonic resonance energy at the near-field surface. Distribution of resulting negative charges along the outer (C60>)-derived fullerosome shell layer of the trilayered NPs was correlated with the detected photoswitchable dielectric amplification phenomena using white LED light at 1.0 GHz.
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