Results 31 to 40 of about 11,207 (210)
Consistent force field for metalloporphyrins [PDF]
Molecular mechanics (MM) calculations to analyze the puckering of metalloporphyrins isolated and adsorbed on a graphite layer (0001) as a function of metal ion size and the peripheral substitution are presented.
LJUBICA ANDJELKOVIĆ +5 more
doaj
Several studies in the last two decades have demonstrated that metalloporphyrins coated quartz microbalances can be fruitfully used in many diverse applications, spanning from medical diagnosis to environmental control.
Alexandro Catini +5 more
doaj +1 more source
Porphyrins are highly persistent in the environment and represent a helpful biogeochemical attribute to assess the spatial distribution of the effects of oil spills on ecosystems and their resilience.
Francisco Muñoz-Arriola +1 more
doaj +1 more source
Equilibrium, photophysical and photochemical examination of anionic lanthanum(III) mono- and bisporphyrins: the effects of the out-of-plane structure [PDF]
Lanthanum(III) ion forms kinetically labile complexes with the 5,10,15,20-tetrakis(4-sulfonatophenyl)porphyrin anion (H2TSPP4-), the compositions and formation constants of which significantly depend on the presence of potential axial ligands (at 0.01 M)
Eller, Gábor +2 more
core +1 more source
Porphyrins have multiple roles in living and nonliving systems because of their exceptional tunable chemical and physical properties. They are interesting macrocyclic compounds that could be modified in a number of ways.
Gita Singh, Sudeshna Chandra
doaj +1 more source
Near-IR Phosphorescence of Iridium(III) Corroles at Ambient Temperature [PDF]
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
How does aromaticity rule the thermodynamic stability of hydroporphyrins? [PDF]
Several measures of aromaticity including energetic, magnetic, and electron density criteria are employed to show how aromatic stabilization can explain the stability sequence of hydroporphyrins, ranging from porphin to octahydroporphin, and their ...
Bultinck, Patrick +5 more
core +2 more sources
Seeing smells: development of an optoelectronic nose
The development of an array of chemically-responsive dyes on a porous membrane and in its use as a general sensor for odors and volatile organic compounds (VOCs) is reviewed. These colorimetric sensor arrays (CSA) act as an "optoelectronic nose" by using
Kenneth S. Suslick +11 more
doaj +1 more source
Single-Walled Carbon Nanotube–Metalloporphyrin Chemiresistive Gas Sensor Arrays for Volatile Organic Compounds [PDF]
National Science Foundation (U.S.) (DMR-1410718)National Science Foundation (U.S.) (1122374)Massachusetts Institute of Technology. Institute for Soldier NanotechnologiesUnited States.
Liu, Sophie +2 more
core +2 more sources
Carbene Transfer Reactions Catalysed by Dyes of the Metalloporphyrin Group
Carbene transfer reactions are very important transformations in organic synthesis, allowing the generation of structurally challenging products by catalysed cyclopropanation, cyclopropenation, carbene C-H, N-H, O-H, S-H, and Si-H insertion, and ...
Mário M. Q. Simões +8 more
doaj +1 more source

