β-Octafluorinated tetrakis(ethoxycarbonyl)porphyrin

Tetrakis(alkoxycarbonyl)porphyrin and its β-octafluoro-substituted derivatives were synthesized via Lindsey method and transformed to their zinc complexes. Single crystal X-ray structures of corresponding Zn(II) porphyrins revealed that β-octafluorination will give more compactness of porphyrin moieties in the crystal structure owing to the hydrogen bonding interactions involving β-fluorine atoms. An unusual six-coordinated Zn(II) was found via intramolecular coordination of oxygen atom of meso-substituents with central Zn(II).

A novel β-octafluorinated tetrakis(ethoxycarbonyl)porphyrin and its Zn(II) complex have been synthesized. Single crystal X-ray structure of zinc complex indicated it has a planar Zn(II) porphyrin macrocycle with hexa-coordinated central Zn(II), and adopts a 1D coordinating chain polymeric arrangement with a stepped pattern.Figure optionsDownload as PowerPoint slide