• No results found

Porphyrins for Use in Electron Transfer Systems

Synthesis of Unsymmetrical meso Substituted Porphyrins, 1  5,15 A2B2  and 5,15 A2BC Type Porphyrins with Donor and Acceptor Groups for Use in Nonlinear Optics and Photodynamic Therapy

Synthesis of Unsymmetrical meso Substituted Porphyrins, 1 5,15 A2B2 and 5,15 A2BC Type Porphyrins with Donor and Acceptor Groups for Use in Nonlinear Optics and Photodynamic Therapy

... Summary and Conclusions Experimental and theoretical studies of two isomeric meso- diphenyl-octaethylporphyrins reveal regiochemical substituent pattern-induced changes in structure, spectroscopy, photophysics, hydrogen ...

12

Quantum Theory of Electron Transport Through Photo Synthetic Porphyrins

Quantum Theory of Electron Transport Through Photo Synthetic Porphyrins

... 27 2.9 Calculating binding energy using the counter poise method Using the DFT approach to calculate the ground state geometry of different system configurations allows us to also calculate the binding energy between ...

133

Stannyl porphyrins, ferrocenyl porphyrins and nonplanar porphyrins : synthesis and photophysical properties

Stannyl porphyrins, ferrocenyl porphyrins and nonplanar porphyrins : synthesis and photophysical properties

... All material supplied by Trinity College Library is protected by copyright (under the Copyright and Related Rights Act, 2000 as amended) and other relevant Intellectual Property Rights. By accessing and using a Digitised ...

152

Molecular Engineering of Porphyrins as Organocatalysts and Methods Development for New Highly Substituted Porphyrins

Molecular Engineering of Porphyrins as Organocatalysts and Methods Development for New Highly Substituted Porphyrins

... Substituted Porphyrins Modifications of the porphyrin macrocycle allow tailoring the tetrapyrrole scaffold for a plethora of ...substituted porphyrins stand at the base of new functions in supramolecular ...

201

Porphyrins in troubled times: a spotlight on porphyrins and their metal complexes for explosives testing and CBRN defense

Porphyrins in troubled times: a spotlight on porphyrins and their metal complexes for explosives testing and CBRN defense

... The potential of biological warfare (BW) and bioterrorism is an unsettling reality of 21 st century life, with the possibility to use biological warfare agents (BWAs) in a bioterrorist attack posing a global cause ...

21

Synthesis of biomedical relevant porphyrins

Synthesis of biomedical relevant porphyrins

... from use of the thesis for whatever ...specific use constraints, details of which may not be explicitly ...making use of material from a digitised thesis, you accept these copyright and disclaimer ...

189

Investigation of the Electron Transfer between Levodopa and Zinc Porphyrins at Bionic Interface

Investigation of the Electron Transfer between Levodopa and Zinc Porphyrins at Bionic Interface

... interfacial electron transfer (ET) process of levodopa by using thin-layer cyclic ...zinc porphyrins with a systematic variation in structure are used as the reactants in the organic phase for the ...

14

Interplay of Proton Transfer, Electron Transfer and Proton Coupled Electron Transfer in Transition Metal Mediated Nitrogen Fixation

Interplay of Proton Transfer, Electron Transfer and Proton Coupled Electron Transfer in Transition Metal Mediated Nitrogen Fixation

... All solvents are stirred with Na/K for ≥2 hours and filtered prior to use. In a nitrogen-filled glovebox, the desired 57 Fe species (0.0023 mmol) is quantitatively transferred using THF to a vial and then ...

214

Pulse electromagnetic fields enhance extracellular electron transfer in magnetic bioelectrochemical systems

Pulse electromagnetic fields enhance extracellular electron transfer in magnetic bioelectrochemical systems

... lular electron transfer in a manner similar to c-type cytochromes [9, ...extracellular electron trans- fer, the relationships among EET, magnetohydrodynamic effect, pulse frequency and expression and ...

11

Ultrafast investigation of light-driven electron proton transfer in intermolecular model systems

Ultrafast investigation of light-driven electron proton transfer in intermolecular model systems

... the electron, versus two step processes in which the proton is transferred followed by electron transfer (PTET) or the alternative variation of electron transfer followed by proton ...

160

Magnet anode enhances extracellular electron transfer and enrichment of exoelectrogenic bacteria in bioelectrochemical systems

Magnet anode enhances extracellular electron transfer and enrichment of exoelectrogenic bacteria in bioelectrochemical systems

... extracellular electron transfer (EET) and facilitated exo- electrogens (Geobacter) enrichment on the anode surface of MFCs resulting in high power generation ...the use of MFs in BESs still needs to ...

9

Quantum Theory of the Electron Transfer Coefficient

Quantum Theory of the Electron Transfer Coefficient

... Excellent results were obtained from this comparison. [10] In this way, it is demonstrated that quantum chemical techniques, such as DFT have become a powerful tool in the investigation of molecular structure and ...

5

Reaction Enthalpy and Volume Profiles for Excited State Reactions Involving Electron Transfer and Proton-Coupled Electron Transfer

Reaction Enthalpy and Volume Profiles for Excited State Reactions Involving Electron Transfer and Proton-Coupled Electron Transfer

... biomimetic systems based on porphyrin platforms were also synthesized in the last six years to probe the same tyrosine PCET chemistry as well as tryptophan PCET chemistry by ...the use of “oil-in-water” ...

136

Electron transfer in extended systems: characterization by periodic density functional theory including the electronic coupling

Electron transfer in extended systems: characterization by periodic density functional theory including the electronic coupling

... of electron transfer (ET) in gas and solution phases has a very long history, dating back to the work of Hush and collaborators 1 and Marcus and ...about electron transfer investigated by ...

31

Middle-down electron capture dissociation and electron transfer dissociation for histone analysis

Middle-down electron capture dissociation and electron transfer dissociation for histone analysis

... As a test model, we used histones from MEL (murine erythroleukemia) cells treated with butyric acid or DMSO. After acid extraction, histone pellets were dried and fractionated using a reversed-phase C3 column. For ...

7

Electron Transfer Through Organic and Biological Molecules

Electron Transfer Through Organic and Biological Molecules

... However, a variety of projects may prove to be very interesting. Cu A and the CcO are very well conserved structurally from Archaebacteria to mammalian systems (Figures 4.23 and 4.24). This interface to cyt c has ...

137

Radical formation and electron transfer in biological molecules

Radical formation and electron transfer in biological molecules

... exogenous electron donor (reductive flash/quench) or an exogenous electron acceptor (oxidative ...exogenous electron donor or acceptor is referred to as a quencher, because it causes an observable ...

301

Electron Transfer in Flavodoxin-based Redox Maquettes

Electron Transfer in Flavodoxin-based Redox Maquettes

... the systems under study in this ...as electron shuttles or taxis in the cell’s energetic processes, picking electrons up from donor proteins and delivering them to acceptor proteins which are often at a ...

202

Activation of Electron-Deficient Quinones Through Hydrogen-Bond-Donor-Coupled Electron Transfer

Activation of Electron-Deficient Quinones Through Hydrogen-Bond-Donor-Coupled Electron Transfer

... 123 General information for kinetics measurements Dichloromethane, which was purified according to known literature procedures, 39 was subjected to three freeze-pump-thaw cycles prior to use and was used within ...

189

Proton-Coupled Electron Transfer with Photoexcited Metal Complexes

Proton-Coupled Electron Transfer with Photoexcited Metal Complexes

... Ideally, the abovementioned small molecule activation processes would be driven by solar energy hence it might be useful to understand how light can be used to perform CPET chemistry. Much research performed so far has ...

33

Show all 10000 documents...

Related subjects