Results 21 to 30 of about 40,631 (243)
Gold(II) Porphyrins are Inherently Waved [PDF]
Relativistic DFT (OLYP-D3/ZORA-STO-TZ2P) calculations predict low adiabatic ionization potentials for gold(II) porphyrins, from 4.60 eV for Au[TPP] (TPP = tetraphenylporphyrin) to 5.34 eV for Au[TPFPP] [TPFPP = tetrakis(pentafluorophenyl)porphyrin ...
Abhik, Ghosh, Jeanet, Conradie
core +2 more sources
The inhibition of the corrosion of N80 steel in 3.5 wt. % NaCl solution saturated with CO2 by four porphyrins, namely 5,10,15,20-tetrakis(4-hydroxyphenyl)-21H,23H-porphyrin (HPTB), 5,10,15,20-tetra(4-pyridyl)-21H,23H-porphyrin (T4PP), 4,4′,4″,4 ...
Ambrish Singh +11 more
doaj +1 more source
Nonlinear photonics properties of porphyrins nanocomposites and self-assembled porphyrins [PDF]
Two major reasons limit porphyrins photonic applications: (i) the difficulty of handling them in liquid solutions and (ii) their degradation with long exposure to light.
D. Hamidi +19 more
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Preliminary study of metalloporphyrins in some oil shales, red sea, Egypt
Occurence and distribution of metalloporphyrins were studied in asphaltene and maltene fractions of some Egyptian oil shales from the main producing mines (Abu-Shegeili, El-Beida, El-Nakheil and Abu-Tundub I, II) in red sea area (Fig.
S.M. El-Sabagh +3 more
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Phosphates Induced H-Type or J-Type Aggregation of Cationic Porphyrins with Varied Side Chains
Non-covalent interactions have been extensively used to fabricate nanoscale architectures in supramolecular chemistry. However, the biomimetic self-assembly of diverse nanostructures in aqueous solution with reversibility induced by different important ...
Zhiliang Li +4 more
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Photodynamic activity of novel cationic porphyrins conjugated to graphene quantum dots against Staphylococcus aureus [PDF]
Novel 5-(pyridyl)-10-15-20-tris(4-bromophenyl) porphyrin (complex 1), indium metal derivative (complex 2), and quaternized derivative (complex 3) were synthesized and conjugated to graphene quantum dots (GQDs).
Magaela, N Bridged +3 more
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Heme enzyme dysfunction causes a group of diseases called porphyrias. Particularly, a decrease in porphobilinogen deaminase, involved in the third step of heme biosynthesis, leads to acute intermittent porphyria (AIP).
Johanna Romina Zuccoli +3 more
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Effect of Antiepileptic Drugs on the Urinary Excretion of Porphyrins in Non-porphyric Subjects
The action of some anticonvulsant drugs as the causal agents of attacks of acute porphyria has been widely documented in the literature. However, little attention has been paid to the effect of these drugs on the urinary excretion of porphyrins in non ...
Maria J. Tutor-Crespo +2 more
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Synthesis and characterization of novel azo-bridged Zn(II) and Co(II) bisphthalocyanines
Metal phthalocyanines containing an unsymmetrically substituted nitro group were synthesized from 4-nitrophthatonitrile and the corresponding anhydrous metal salts (Co(OAc)(2), Zn(OAc)(2)) by the method of statistically mixed condensation reactions.
core +2 more sources
A Modified Vilsmeier–Haack Strategy to Construct β-Pyridine-Fused 5,10,15,20-Tetraarylporphyrins
A modified Vilsmeier–Haack strategy has been developed to construct a novel series of π-extended nickel(II) or copper(II) complexes of 2-chloro-3-formyl- and 3-formylpyrido[2,3-b]porphyrins from 2-acetamido-meso-tetraarylporphyrins. After chromatographic
Pargat Singh, Mahendra Nath
doaj +1 more source

