Synthesis, photochemistry, and electrochemistry of a series of phthalocyanines with graded steric hindrance

Gongzhen Cheng, Xinzhan Peng, Guolun Hao, Vance O. Kennedy, Ilya N. Ivanov, Kenneth Knappenberger, Tessa J. Hill, Michael A.J. Rodgers, Malcolm E. Kenney

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

The synthesis, photochemistry and electrochemistry of a series of phthalocyanines with graded steric hindrances are discussed. It appeared that although steric crowding of the triplet state of the silicon phthalocyanines was very effective at reducing the rate constants of exoergic electron exchange energy transfer (TT) reactions, but it was less effective at discriminating against electron transfer (ET) processes. It was apparent that steric crowding of the photogenerated excited state was more effective in discriminating against the energy transfer process even for the small energy-acepting entities such as O2.

Original languageEnglish (US)
Pages (from-to)3503-3514
Number of pages12
JournalJournal of Physical Chemistry A
Volume107
Issue number18
DOIs
StatePublished - May 8 2003

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silicon phthalocyanine
crowding
Photochemical reactions
Electrochemistry
electrochemistry
photochemical reactions
Energy transfer
energy transfer
Electrons
synthesis
Excited states
atomic energy levels
Rate constants
electron transfer
silicon
excitation
electrons
phthalocyanine
energy

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry

Cite this

Cheng, Gongzhen ; Peng, Xinzhan ; Hao, Guolun ; Kennedy, Vance O. ; Ivanov, Ilya N. ; Knappenberger, Kenneth ; Hill, Tessa J. ; Rodgers, Michael A.J. ; Kenney, Malcolm E. / Synthesis, photochemistry, and electrochemistry of a series of phthalocyanines with graded steric hindrance. In: Journal of Physical Chemistry A. 2003 ; Vol. 107, No. 18. pp. 3503-3514.
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abstract = "The synthesis, photochemistry and electrochemistry of a series of phthalocyanines with graded steric hindrances are discussed. It appeared that although steric crowding of the triplet state of the silicon phthalocyanines was very effective at reducing the rate constants of exoergic electron exchange energy transfer (TT) reactions, but it was less effective at discriminating against electron transfer (ET) processes. It was apparent that steric crowding of the photogenerated excited state was more effective in discriminating against the energy transfer process even for the small energy-acepting entities such as O2.",
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Cheng, G, Peng, X, Hao, G, Kennedy, VO, Ivanov, IN, Knappenberger, K, Hill, TJ, Rodgers, MAJ & Kenney, ME 2003, 'Synthesis, photochemistry, and electrochemistry of a series of phthalocyanines with graded steric hindrance', Journal of Physical Chemistry A, vol. 107, no. 18, pp. 3503-3514. https://doi.org/10.1021/jp027006q

Synthesis, photochemistry, and electrochemistry of a series of phthalocyanines with graded steric hindrance. / Cheng, Gongzhen; Peng, Xinzhan; Hao, Guolun; Kennedy, Vance O.; Ivanov, Ilya N.; Knappenberger, Kenneth; Hill, Tessa J.; Rodgers, Michael A.J.; Kenney, Malcolm E.

In: Journal of Physical Chemistry A, Vol. 107, No. 18, 08.05.2003, p. 3503-3514.

Research output: Contribution to journalArticle

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AU - Cheng, Gongzhen

AU - Peng, Xinzhan

AU - Hao, Guolun

AU - Kennedy, Vance O.

AU - Ivanov, Ilya N.

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AU - Hill, Tessa J.

AU - Rodgers, Michael A.J.

AU - Kenney, Malcolm E.

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