Results 41 to 50 of about 11,207 (210)

Topologically protected excitons in porphyrin thin films [PDF]

, 2014
The control of exciton transport in organic materials is of fundamental importance for the development of efficient light-harvesting systems. This transport is easily deteriorated by traps in the disordered energy landscape.
Aspuru-Guzik, Alán, Saikin, Semion S., Yao, Norman Y., Yuen-Zhou, Joel   +3 more
core   +2 more sources

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

Advanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He, Minxian Zhang, Jinqiang Zhang, Hongqi Sun, Shaobin Wang, Xiaoguang Duan   +5 more
wiley   +1 more source

A New Composition for Co(II)-porphyrin-based Membranes Used in Thiocyanate-selective Electrodes

Sensors, 2006
In the present paper, the potentiometric response characteristics of ametalloporphyrin-based electrode in o-nitrophenyloctylether (o-NPOE) plasticizedpolyvinyl chloride (PVC) membrane are presented for a set of monovalent anions.
Otilia Bizerea-Spiridon, Eugenia Fagadar-Cosma, Dana Vlascici   +2 more
doaj   +1 more source

Modern Methods for the Sustainable Synthesis of Metalloporphyrins

Molecules, 2021
Metalloporphyrins are involved in many and diverse applications that require the preparation of these compounds in an efficient manner, which nowadays, also involves taking into consideration sustainability issues.
Carla Gomes, Mariana Peixoto, Marta Pineiro   +2 more
doaj   +1 more source

High-field (high-frequency) EPR spectroscopy and structural characterization of a novel manganese(III) corrole [PDF]

, 2000
The X-ray structure, magnetic susceptibility, and high-field (high-frequency) EPR spectrum of manganese 5,10,15-tris(pentafluorophenyl) corrole unambiguously establish that the complex contains an isolated, slightly rhombic, manganese(III ...
Bendix, Jesper, Golubkov, Galina, Gray, Harry B., Gross, Zeev   +3 more
core   +1 more source

Suppressing Metal–Molecule Charge Transfer With a Phosphorus Interlayer

Advanced Materials Interfaces, EarlyView.
Phosphorus forms stable reconstructions with remarkable properties on various metal substrates. Here, using a spectroscopic approach, its role as an effective buffer layer on Cu(110) is demonstrated, preventing charge transfer to adsorbed Zn‐tetraphenylporphyrins (ZnTPP).
Mattia Bassotti, Luca Floreano, Luca Schio, Sergio Salaverria, Dimas G. de Oteyza, Giacomo Giorgi, Frederik Schiller, Alberto Verdini   +7 more
wiley   +1 more source

METALLOPORPHYRINS

Journal of Biological Chemistry, 1940
W. Mansfield Clark, John Fuller Taylor, T. Harrison Davies, Carl S. Vestling   +3 more
  +6 more sources

In Vitro Anti-Leishmanial Effect of Metallic Meso-Substituted Porphyrin Derivatives against Leishmania braziliensis and Leishmania panamensis Promastigotes Properties

Molecules, 2020
In this study, a family of porphyrins based on 5,10,15,20-Tetrakis(4-ethylphenyl)porphyrin (1, Ph) and six metallo-derivatives (Zn2+(2, Ph-Zn), Sn4+(3, Ph-Sn), Mn2+ (4, Ph-Mn), Ni2+ (5, Ph-Ni), Al3+ (6, Ph-Al), and V3+ (7, Ph-V)) were tested as ...
Fabian Espitia-Almeida, Carlos Díaz-Uribe, William Vallejo, Doris Gómez-Camargo, Arnold R. Romero Bohórquez   +4 more
doaj   +1 more source

Metalloporphyrin Metal–Organic Frameworks: Eminent Synthetic Strategies and Recent Practical Exploitations

Molecules, 2022
The emergence of metal–organic frameworks (MOFs) in recent years has stimulated the interest of scientists working in this area as one of the most applicable archetypes of three-dimensional structures that can be used as promising materials in several ...
Arash Ebrahimi, Lukáš Krivosudský
doaj   +1 more source

REACTIVITY OF CHLOROPHYLL a/b-PROTEINS AND MICELLAR TRITON X-100 COMPLEXES OF CHLOROPHYLLS a OR b WITH BOROHYDRIDE [PDF]

, 1989
The reaction of several plant chlorophyll-protein complexes with NaBH4 has been studied by absorption spectroscopy. In all the complexes studied, chlorophyll b is more reactive than Chi a, due to preferential reaction of its formyl substituent at C-7 ...
Arnon D. I., Beese D., Brody S. S., Brune D. C., Ford R. C., Holt A. S., Holten D., Michel H., Olson J. M., Omata T., Ryrie I. J., Scheer H., Scheer H., Schoch S., Siefermann-Harms D., Smith K. M.   +15 more
core   +1 more source