Excitation wavelength-dependent EPR study on the influence of the conformation of multiporphyrin arrays on triplet state delocalization

Literature Information

Publication Date 2016-01-08
DOI 10.1039/C5CP07424J
Impact Factor 3.676
Authors

Claudia E. Tait, Patrik Neuhaus, Martin D. Peeks, Harry L. Anderson, Christiane R. Timmel


View Original

Abstract

The optoelectronic properties of conjugated porphyrin arrays render them excellent candidates for use in a variety of molecular electronic devices. Understanding the factors controlling the electron delocalization in these systems is important for further developments in this field. Here, we use transient EPR and ENDOR (Electron Nuclear Double Resonance) to study the extent of electronic delocalization in the photoexcited triplet states of a series of butadiyne-linked porphyrin oligomers. We are able to distinguish between planar and twisted arrangements of adjacent porphyrin units, as the different conformations are preferentially excited at different wavelengths in the visible range. We show that the extent of triplet state delocalization is modulated by the torsional angle between the porphyrins and therefore by the excitation wavelength. These results have implications for the design of supramolecular systems with fine-tuned excitonic interactions and for the control of charge transport.

Related Literature

High-resolution soft X-ray photoelectron spectroscopy of liquid water

Kiyoshi Nishizawa, Tomoya Mizuno, Yoshihiro Ogi, Masaki Oura

2010-11-10 Communication

DOI: 10.1039/C0CP01636E

Thermal hysteresis of Morin transition in hematite particles

L. Suber, P. Imperatori, A. Mari, G. Marchegiani, M. Vasquez Mansilla, D. Fiorani, W. R. Plunkett, D. Rinaldi, C. Cannas, G. Ennas

2010-05-18 Paper

DOI: 10.1039/B925371H

Nickel based electrocatalysts for oxygen evolution in high current density, alkaline water electrolysers

Xiaohong Li, Frank C. Walsh, Derek Pletcher

2010-11-15 Paper

DOI: 10.1039/C0CP00993H

First principles Monte Carlo simulations of aggregation in the vapor phase of hydrogen fluoride

Christopher J. Mundy, I-F. Will Kuo, J. Ilja Siepmann

2010-05-27 Paper

DOI: 10.1039/B924506E

Contents

Front/Back Matter

DOI: 10.1039/C0CP90158J

Contents

Front/Back Matter

DOI: 10.1039/C004143M

Analysis and improvement of rate constant determination of reactions involving charged reactants

Keith M. Krise, Angela A. Hwang, Bratoljub H. Milosavljevic

2010-06-08 Paper

DOI: 10.1039/B927266F

Effect of hydrophobic nanopatches within an ionic surface on the structure of liquids

Christopher Hardacre

2010-11-01 Paper

DOI: 10.1039/C0CP01838D

Negative differential resistance in oxidized zigzag graphene nanoribbons

Min Wang, Chang Ming Li

2010-12-09 Paper

DOI: 10.1039/C0CP00828A

Solvatochromic shifts of single-walled carbon nanotubes in nonpolar microenvironments

Carlos A. Silvera-Batista, Randy K. Wang, Philip Weinberg

2010-05-12 Paper

DOI: 10.1039/B927053A

You might also like

Compound Q&A

What is 1-(2,4,6-Trifluorophenyl)ethanol (CAS: 1250113-83-7)?

1-(2,4,6-Trifluorophenyl)ethanol is an organic compound with the CAS number 1250...

1250113-83-71-(2,4,6-Trifluoroph...
Compound Q&A

Is 1-(2,4-Dimethoxybenzyl)-4-(hydroxymethyl)-2-pyrrolidinone (CAS: 919111-34-5) safe?

1-(2,4-Dimethoxybenzyl)-4-(hydroxymethyl)-2-pyrrolidinone (CAS: 919111-34-5) is ...

919111-34-51-(2,4-Dimethoxybenz...
Compound Q&A

What are the physical and chemical properties of (7S,15R)-6β,15-Diacetoxy-7α,20-epoxy-7-hydroxykaura-2,16-dien-1-one (CAS: 51419-51-3)?

(7S,15R)-6β,15-Diacetoxy-7α,20-epoxy-7-hydroxykaura-2,16-dien-1-one is a crystal...

51419-51-3(7S,15R)-6β,15-Diace...
Compound Q&A

What regulatory guidelines apply to rac-ethyl (1r,4r)-4-hydroxycyclohexane-1-carboxylate, trans (CAS: 3618-04-0)?

The compound rac-ethyl (1r,4r)-4-hydroxycyclohexane-1-carboxylate, trans (CAS: 3...

3618-04-0rac-ethyl (1r,4r)-4-...
Compound Q&A

What is the market or research trend for 2-(2,4-Difluorophenoxy)-3-nitropyridine (CAS: 175135-62-3)?

The market for 2-(2,4-Difluorophenoxy)-3-nitropyridine (CAS: 175135-62-3) is cur...

175135-62-32-(2,4-Difluoropheno...
Compound Q&A

What are the main uses of 6-Diazo-5-oxo-L-norleucine (CAS: 157-03-9)?

The main uses of 6-Diazo-5-oxo-L-norleucine (CAS: 157-03-9) include research in ...

157-03-96-Diazo-5-oxo-L-norl...
Compound Q&A

What precautions should be taken when handling 2-Aminoethyl-mono-amide-DOTA-tris(tBu ester) (CAS: 173308-19-5)?

When handling 2-Aminoethyl-mono-amide-DOTA-tris(tBu ester) (CAS: 173308-19-5), i...

173308-19-52-Aminoethyl-mono-am...
Compound Q&A

How is 5-Methylimidazo[1,2-a]pyridine-3-carbaldehyde (CAS: 178488-37-4) typically synthesized?

5-Methylimidazo[1,2-a]pyridine-3-carbaldehyde (CAS: 178488-37-4) can be synthesi...

178488-37-45-Methylimidazo[1,2-...
Compound Q&A

Are there alternatives to 2,4,6-Trihydroxyisophthalaldehyde (CAS: 4396-13-8) in synthesis?

There are alternative reagents that can be used in the synthesis of 2,4,6-Trihyd...

4396-13-82,4,6-Trihydroxyisop...
Compound Q&A

What is (2Z)-3-(5-Fluoro-1H-indol-3-yl)-2-sulfanylacrylic acid (CAS: 179461-52-0)?

(2Z)-3-(5-Fluoro-1H-indol-3-yl)-2-sulfanylacrylic acid is a chemical compound wi...

179461-52-0(2Z)-3-(5-Fluoro-1H-...

Source Journal

Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
Articles per Year: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

Recommended Compounds

Recommended Suppliers

Disclaimer
This page provides academic journal information for reference and research purposes only. We are not affiliated with any journal publishers and do not handle publication submissions. For publication-related inquiries, please contact the respective journal publishers directly.
If you notice any inaccuracies in the information displayed, please contact us at support@chemtradehub.com. We will promptly review and address your concerns.