Fast energy transfer within a self-assembled cyclic porphyrin tetramer
2008
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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