Synthesis and spectroscopic properties of a soluble semiconducting porphyrin polymer

Robert A. Schmitz, Paul A. Liddell, Gerdenis Kodis, Michael J. Kenney, Bradley J. Brennan, Nolan V. Oster, Thomas A Moore, Ana L Moore, John Devens Gust

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

A semiconducting porphyrin polymer that is solution processable and soluble in organic solvents has been synthesized, and its spectroscopic and electrochemical properties have been investigated. The polymer consists of diarylporphyrin units that are linked at meso-positions by aminophenyl groups, thus making the porphyrin rings an integral part of the polymer backbone. Hexyl chains on two of the aryl groups impart solubility. The porphyrin units interact only weakly in the ground electronic state. Excitation produces a local excited state that rapidly evolves into a state with charge-transfer character (CT) involving the amino nitrogen and the porphyrin macrocycle. Singlet excitation energy is transferred between porphyrin units in the chain with a time constant of ca. 210 ps. The final CT state has a lifetime of several nanoseconds, and the first oxidation of the polymer occurs at ca. 0.58 V vs. SCE. These properties make the polymer a suitable potential excited state electron donor to a variety of fullerenes or other acceptor species, suggesting that the polymer may find use in organic photovoltaics, sensors, and similar applications. This journal is

Original languageEnglish
Pages (from-to)17569-17579
Number of pages11
JournalPhysical Chemistry Chemical Physics
Volume16
Issue number33
DOIs
Publication statusPublished - Sep 7 2014

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Porphyrins
porphyrins
Polymers
polymers
synthesis
Excited states
excitation
Fullerenes
Excitation energy
Electronic states
Electrochemical properties
Solubility
Organic solvents
time constant
fullerenes
Charge transfer
Nitrogen
solubility
charge transfer
Electrons

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Physics and Astronomy(all)
  • Medicine(all)

Cite this

Schmitz, R. A., Liddell, P. A., Kodis, G., Kenney, M. J., Brennan, B. J., Oster, N. V., ... Gust, J. D. (2014). Synthesis and spectroscopic properties of a soluble semiconducting porphyrin polymer. Physical Chemistry Chemical Physics, 16(33), 17569-17579. https://doi.org/10.1039/c4cp02105c

Synthesis and spectroscopic properties of a soluble semiconducting porphyrin polymer. / Schmitz, Robert A.; Liddell, Paul A.; Kodis, Gerdenis; Kenney, Michael J.; Brennan, Bradley J.; Oster, Nolan V.; Moore, Thomas A; Moore, Ana L; Gust, John Devens.

In: Physical Chemistry Chemical Physics, Vol. 16, No. 33, 07.09.2014, p. 17569-17579.

Research output: Contribution to journalArticle

Schmitz RA, Liddell PA, Kodis G, Kenney MJ, Brennan BJ, Oster NV et al. Synthesis and spectroscopic properties of a soluble semiconducting porphyrin polymer. Physical Chemistry Chemical Physics. 2014 Sep 7;16(33):17569-17579. https://doi.org/10.1039/c4cp02105c
Schmitz, Robert A. ; Liddell, Paul A. ; Kodis, Gerdenis ; Kenney, Michael J. ; Brennan, Bradley J. ; Oster, Nolan V. ; Moore, Thomas A ; Moore, Ana L ; Gust, John Devens. / Synthesis and spectroscopic properties of a soluble semiconducting porphyrin polymer. In: Physical Chemistry Chemical Physics. 2014 ; Vol. 16, No. 33. pp. 17569-17579.
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