[5,10,15,20-Tetrakis(pentafluorophenyl)porphyrinato]zinc(II) benzene disolvate

Abstract

<jats:p>Single crystals of the title zinc porphyrinato complex, [Zn(C<jats:sub>44</jats:sub>H<jats:sub>8</jats:sub>F<jats:sub>20</jats:sub>N<jats:sub>4</jats:sub>)]·2C<jats:sub>6</jats:sub>H<jats:sub>6</jats:sub>, were obtained by the solvent evaporation method. The molecular complex exhibits point group symmetry \overline1 with the central Zn<jats:sup>II</jats:sup> atom located on an inversion centre. The porphyrinato core is approximately planar, and the cation has no other ligating atoms than the four porphyrinato N atoms. π–π interactions between benzene solvent molecules and [Zn(TFPP)] units lead to multilayer packing structures. In addition, intermolecular C—H...F hydrogen bonding is observed between [Zn(TFPP)] molecules.</jats:p>

Decorrelated singlet and triplet exciton delocalization in acetylene-bridged Zn-porphyrin dimers

“…32 Zinc substituted porphyrin monomers, zinc( ii ) 5,10,15,20-(tetramesitly)porphyrin (Zn-M) and zinc( ii) 5,10,15,20 tetrakis(pentafluorophenyl)porphyrin (F 20 Zn-M), were synthesized by adding a solution containing excess zinc acetate in methanol and purified using column chromatography according to procedures reported previously. 33,34 We used the Sonogashira coupling approach in the presence of a palladium catalyst to synthesize the required porphyrin dimers: 4,4′-bis[5,10,15-trimesityl-20-porphinyl]diphenylacetylene (Fb 2 U-D), 4-[zinc( ii )5,10,15-trimesity1-20-porphiny1]-4-[5,10,15-trimesityl-20-porphny1]-diphenylacetylene (ZnFbU-D), 4,4′-bis[zinc( ii )-5,10,15-trimesityl-20-porphinyl]diphenylacetylene (Zn 2 U-D), and 4,4′-bis[zinc( ii )-5,10,15-pentafluoro-20-porphinyl]diphenylacetylene (F 30 Zn 2 U-D). 35,36 All the synthesized molecules were characterized using MALDI-TOF mass spectrometry and 1 H NMR spectroscopy.…”

“…32 Zinc substituted porphyrin monomers, zinc(II) 5,10,15,20-(tetramesitly)porphyrin (Zn-M) and zinc(II) 5,10,15,20 tetrakis(pentauorophenyl)porphyrin (F 20 Zn-M), were synthesized by adding a solution containing excess zinc acetate in methanol and puried using column chromatography according to procedures reported previously. 33,34 We used the Sonogashira coupling approach in the presence of a palladium catalyst to synthesize the required porphyrin dimers: 4,4 ′ -bis [5,10,15trimesityl-20-porphinyl] 35,36 All the synthesized molecules were characterized using MALDI-TOF mass spectrometry and 1 H NMR spectroscopy. We show the structures of each molecular chromophore studied with both time-resolved optical and EPR spectroscopies in the panels of Fig.…”