Results 61 to 70 of about 63,566 (303)
Synthesis and properties of cationic derivaties of meso-tetra(4-pyridyl)porphyrin
Тонкие химические технологии, 2009 Synthesis of amphyphilic cationic meso-pyridilsubstituted porphyrins bearing long chain alkyl groups is described. An improved methods of preparation of tetra- and mono-alkylsubstituted meso-pyridil porphyrins are proposed.
N. V. Novikov +5 more
doaj
Antibiotics, 2021 Lignin has recently attracted the attention of the scientific community, as a suitable raw material for biomedical applications. In this work, acetylated lignin was used to encapsulate five different porphyrins, aiming to preserve their photophysical ...
Nidia Maldonado-Carmona +6 more
doaj +1 more source
Near-IR Phosphorescence of Iridium(III) Corroles at Ambient Temperature [PDF]
, 2010 The photophysical properties of Ir(III) corroles differ from those of phosphorescent porphyrin complexes, cyclometalated and polyimine Ir(III) compounds, and other luminescent metallocorroles.
Durrell, Alec C. +4 more
core +2 more sources
MOFs and COFs in Electronics: Bridging the Gap between Intrinsic Properties and Measured Performance
Advanced Functional Materials, EarlyView.Metal‐organic frameworks (MOFs) and covalent organic frameworks (COFs) hold promise for advanced electronics. However, discrepancies in reported electrical conductivities highlight the importance of measurement methodologies. This review explores intrinsic charge transport mechanisms and extrinsic factors influencing performance, and critically ...
Jonas F. Pöhls, R. Thomas Weitz
wiley +1 more source
Azolium‐Porphyrin Electrosynthesis
ChemSusChemAbstractElectrochemical oxidation of Zn(II) 2,7,12,17‐tetra‐tert‐butylporphyrin in the presence of a series of azole derivatives (1‐methylimidazole, 1‐vinyl‐1H‐imidazole, 2‐(1H‐imidazol‐1‐yl)pyridine, 1‐methylbenzimidazole, 1‐methyl‐1H‐1,2,4‐triazole, and benzothiazole) affords the corresponding meso‐substituted azolium‐porphyrins in very mild ...
Akhssas, Fatima +11 more
openaire +4 more sources
Rapid, quantitative determination of bacteria in water [PDF]
, 1978 A bioluminescent assay for ATP in water borne bacteria is made by adding nitric acid to a water sample with concentrated bacteria to rupture the bacterial cells.
Chappelle, E. W. +4 more
core +1 more source
, 2003 We present a plane-wave ultrasoft pseudopotential implementation of first-principle molecular dynamics, which is well suited to model large molecular systems containing transition metal centers.
Car, R., De Angelis, F., Giannozzi, P.
core +1 more source
Chiral Nanohoops as an Efficient Spin Polarization System
Advanced Functional Materials, EarlyView.Chiral conjugated nanohoops with a central dibenzopentalene unit exhibit 90% spin polarization at low voltage and high conductivity. These properties make them ideal components in molecular spintronics applications. Abstract A central challenge in molecular spintronics is to achieve a high spin polarization at low operating voltages and ambient ...
Anu Gupta +4 more
wiley +1 more source
Entropy analysis of nickel(II) porphyrins network via curve fitting techniques
Scientific Reports, 2023 Nickel(II) porphyrins typically adopt a square planar coordination geometry, with the nickel atom located at the center of the porphyrin ring and the coordinating atoms arranged in a square plane.
Muhammad Talha Farooq +2 more
doaj +1 more source
Electrochemistry and spectroelectrochemistry of iron porphyrins in the presence of nitrite [PDF]
, 2001 The reaction of nitrite with ferric and ferrous porphyrins was examined using visible, infrared and NMR spectroscopy. Solutions of either ferric or ferrous porphyrin were stable in the presence of nitrite, with only complexation reactions being observed.
Ryan, Michael D., Wei, Zhongcheng
core +1 more source