Tetraphenylporphyrin derivatives

New PHB materials are composed of Zn-tetraben2oporphyrin—aromatic cyanide—poly (methyl methacrylate) (180) or of tetraphenylporphyrin derivatives dispersed in polymer matrices such as PMMA and polyethylene (181). A survey of such materials has been given (181). 

M. Podgoma and P. Kus, Separation of tetraphenylporphyrin derivatives by adsorption and partition thin-layer chromatography. J. Planar Chromatogr. — Mod. TLC 13 (2000) 166-170. 

This early success in forming CT-salts with interesting properties led to the preparation of various donor-Cgg complexes ]1,26,150]. Amongst others, complexes withtetrathiafulvalene-derivatives (TTE) [150-153], tetraphenylporphyrin-derivatives (TPP) [143,150,154,155] or metallocenes [74,102,149,156-160] were crystallized... 

A unique approach to covalent modification of ITO electrode surfaces was presented by Cho and coworkers. Using the complex shown, covalent attachment to ITO is achieved with a siloxane linkage and the remainder of the sensitizer consists of C6o linked to a triosmium carbonyl cluster that also links to a tetraphenylporphyrin derivative. The work describes a photocurrent generation quantum yield of over 19% [124]. 

Absorption and emission spectra of zinc tetraphenylporphyrin derivatives soluble and insoluble in water showed an equilibrium between two spectroscopically different porphyrin species incorporated in reversed micelles o r hpn /v IH i hv I -n-hcxadccy lammonium chloride in benzene formed by varying the water content... 

A tetraphenylporphyrin derivative with four thiol moieties 9 and a similar bis(cobalt) cofacial diporphyrin with three thiol moieties 10, prepared independently at the same time, electrocatalytically reduce O2 on a variety of gold surfaces [301, 316],... 

Table XXVI summarizes two different series of wcio-tetraphenylporphyrin derivatives that crystallize in the tetragonal crystal system. The compound, space group, a, c, and unit cell volume are listed for each member. Series a, the four-coordinate species, has H2TPP as the parent compound. The existence of the series is expected and solid solutions of H2TPP and the metallo derivatives listed are readily formed . All members of this series have Ruf core conformations with substantial displacements of the carbon atoms. The second series is a substantial series of five- or six-coordinate complexes of which [Sn(TPP)Cl2] is the prototypical ordered example with symmetry. We first concern ourselves with the subset that have been catalogued as having I4/m as the space group. The phenyl groups of adjacent I-centered molecules make equivalent ligand pockets above and below the porphyrin plane. The pocket size is adequate for small (mono- or diatomic) axial ligands. Most of the species listed in Table XXVI(b) are seen to be five-coordinate hence the complexes display disorder in the crystal and...

Table XXVII reports six series we have found in the monoclinic crystal system. Four of these are tetraphenylporphyrin derivatives there is in addition one series each of octaethyl- and tetratolylporphyrin derivatives. Table XXVIII presents seven isomorphous series found in the triclinic crystal system. With one exception, all triclinic space groups are reported to be PI. Tabulated are the unique cell constants and the cell volumes. In these two tables, an asterisk following the compound name indicates that the...

Rowley, N.M., Kurek, S.S., George, M.W., Beer, P.D., Jones, C.J., Hubig, S., Harriman, A., KeUy, J.M., and McQeverty, J.A. (1992) Intramolecular intmcdons between ground and excited state poiphinyl moieties and molybdenum mononitrosyl redox centres in peripherally metallated tetraphenylporphyrin derivatives, J.Chem.Soc., Chem.Comm., 497-9. 

Rangan S, Coh S, Bartynski RA et al (2012) Enta-gy alignment, molectrlar packing, and electrorric pathways zinc(Il) tetraphenylporphyrin derivatives adsorbed on TiO2(110) and ZnO(ll-20) surfaces. J Phys Chem C 116(45) 23921-23930... 

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