Aluminium(III) porphyrin based dimers and trimers: synthesis, spectroscopy and photochemistry was written by Prashanth Kumar, P.;Maiya, Bhaskar G.. And the article was included in New Journal of Chemistry in 2003.Name: 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol The following contents are mentioned in the article:
The known oxophilicity of Al(III) ion and the well-defined redox and photochem. properties of Al(III) porphyrins were exploited to synthesize the functionally active, ‘axial-bonding’-type free base-Al(III) porphyrin dimer (H2-Al) and free base-[aluminum(III) porphyrin]2 trimer (H2-Al2), as well as the corresponding Cu(II) (Cu-Al, Cu-Al2) and Zn(II) (Zn-Al, Zn-Al2) derivatives These dimeric and trimeric species were fully characterized by mass (FAB), UV/visible, 1H NMR (1-dimensional and 1H-1H COSY) and ESR spectroscopies and also by the differential pulse voltammetric method. Comparison of their spectroscopic and electrochem. data with those of the corresponding monomeric porphyrins reveals that there is no apparent ring-to-ring interactions in these ‘vertically’ linked dimers and trimers. The fluorescence quantum yields and singlet state life times are lower for H2-Al and H2-Al2 in comparison with those of the monomeric chromophores. Electronic energy transfer from the Al(III) porphyrin to the free base subunit is detected in both H2-Al and H2-Al2. Finally, a comparison is made between the presently reported Al(III) porphyrin based arrays and the previously reported analogous arrays based on Sn(IV), Ge(IV) and phosphorous(V) porphyrins with regard to their architectural features, spectroscopic properties and photochem. activities. This study involved multiple reactions and reactants, such as 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5Name: 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol).
4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5) belongs to catalyst ligands. Ligand, in chemistry, any atom or molecule attached to a central atom, usually a metallic element, in a coordination or complex compound. Replacing precious metals with cheaper and more environmentally friendly metals is regarded as a highly desirable goal in the field of catalysis.Name: 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol
Referemce:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI