Results 171 to 180 of about 4,762 (222)

Spectroelectrochemistry of metalloporphyrins

Pure and Applied Chemistry, 1990
Abstract
K. M. Kadish, X. Mu
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Electrocatalysis of metalloporphyrins

Journal of Electroanalytical Chemistry and Interfacial Electrochemistry, 1990
Abstract The electrocatalytic reduction of cystine with water-soluble cobalt(II) tetrakis(4-trimethylammoniumphenyl)porphyrin (CoTTAPP) and cobalt(II) tetrakis(4-sulphophenyl)porphyrin (CoTSPP) in 0.2 M H 2 SO 4 solution was investigated. The experimental results of cyclic voltammetry and the rotating disc electrode technique indicated that both ...
Dai-Wen Pang, Zong-Li Wang
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Electrocatalysis on Metalloporphyrins

Russian Chemical Reviews, 1980
Results of theoretical and applied research on electrocatalytic reactions — the cathodic reduction of oxygen, hydrogen peroxide, and carbon dioxide and the anodic oxidation of organic and inorganic substances — on metalloporphyrins are analysed with a list of 132 references.
M R Tarasevich, K A Radyushkina
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Metalloporphyrin Molecular Sieves

Chemistry – A European Journal, 2000
Crystal-engineering strategies have been systematically developed for the rational design by self-assembly of diverse metalloporphyrin molecular-sieve materials. Cooperative coordination and hydrogen bonding algorithms of molecular recognition proved particularly useful for this aim.
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Hydrogen Generation by Hangman Metalloporphyrins

Journal of the American Chemical Society, 2011
A cobalt(II) hangman porphyrin with a xanthene backbone and a carboxylic acid hanging group catalyzes the electrochemical production of hydrogen from benzoic and tosic acid in acetonitrile solutions. We show that Co(II)H is exclusively involved in the generation of H(2) from weak acids.
Chang Hoon, Lee, Dilek K, Dogutan, Daniel G, Nocera   +2 more
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Vibronic Transitions in Single Metalloporphyrins

ChemPhysChem, 2005
AbstractStructural and electronic properties of single zinc etioporphyrin molecules adsorbed on Al2O3/NiAl(110) were probed by a low‐temperature scanning tunneling microscope (STM). Scanning tunneling spectroscopy (STS) revealed progressions of spectral features corresponding to the vibronic states of individual molecules that depend strongly on the ...
H J, Lee, J H, Lee, W, Ho
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The first phosphite complex of a metalloporphyrin

Acta Crystallographica Section C Crystal Structure Communications, 2003
(Diphenyl phosphite-kappaO)(5,10,15,20-tetraphenylporphyrinato-kappa(4)N)manganese(III) hexafluoroantimonate(V), [Mn(C(44)H(28)N(4))(C(12)H(11)O(3)P)](SbF(6)), is the first example of a structurally characterized diaryl or dialkyl phosphite complex of a metal-porphyrin ion.
Orde Q, Munro, Greville L, Camp
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Out-of-plane metalloporphyrin complexes

Journal of Chemical Education, 1975
Abstract : Recent progress in the chemistry of synthetic metalloporphyrins has shown that the porphyrin moiety can act as a bi-, tri- or hexadentate ligand, as well as the usual tetradentate ligand. In addition, the metal ion has been observed to possess 4, 5, 6 or 8-coordination.
G A, Taylor, M, Tsutsui
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Metalloporphyrin Dendrimers with Folding Arms

Angewandte Chemie International Edition, 1998
Rigid and flexible linkers are combined in the new dendrimer shown schematically in the picture, which contains nine metalloporphyrin units (Porph). The construction is such that the four "arms" of the dendrimer can fold in a cooperative and predetermined manner in response to added 1,4-diazabicyclo[2.2.2]octane (DABCO).
Chi Ching, Mak, Nick, Bampos, Jeremy K M, Sanders   +2 more
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Homo- and heterodimer formation in metalloporphyrins

Inorganic Chemistry, 1985
On a obtenu les constantes de formation des dimeres de CuP, AgP et VOP dans le chloroforme par mesures RPE a temperature ambiante et simulation spectrale. P=l'ester dimethylique de la mesoporphyrine IX. On a aussi fait des mesures dans le tetrachloro-1,1,2,2ethane et le dichloromethane pour CuP.
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