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  • Title: Fast energy transfer within a self-assembled cyclic porphyrin tetramer.
    Author: Jensen RA, Kelley RF, Lee SJ, Wasielewski MR, Hupp JT, Tiede DM.
    Journal: Chem Commun (Camb); 2008 Apr 28; (16):1886-8. PubMed ID: 18401507.
    Abstract:
    The structure of a cyclic self-assembled tetramer of an asymmetric meso-ethynylpyridyl-functionalized Zn(II)-porphyrin was established by solution-phase X-ray scattering and diffraction; femtosecond transient absorption and anisotropy spectroscopies were used to (a) observe rapid energy transfer (3.8 ps(-1)) between porphyrin subunits and (b) establish that the transfer occurs between adjacent units.
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