Photostimulated electron tunnel transfer in solid matrices

Brickenstein, E.Kh.; Ivanov, G. K.; Kozhushner, M. A.; Khairutdinov, R. F.

doi:10.1016/0301-0104(84)80049-x

Cited by 11 publications

(6 citation statements)

References 9 publications

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“…Brickenstein et al (1984) showed that the decay of MP+ in the reaction with CCl; under longwave illumination cannot be described by a second-order kinetic equation and the MP+ photostimulated decay efficiency (effective bimolecular rate constant) decreases as the exposure time proceeds. Such a temporal rate shift is characteristic of electron tunneling reactions (Parmon et al, 1974).…”

Section: Dark Und Photostimulated Tunnel Reactions Of Nietalloporphyrinsmentioning

confidence: 99%

“…9 suggests that the MP+ and CCI, photostimulated recombination efficiency is much higher than the efficiency of dark tunneling decay for these particles. Brickenstein et al (1984) accomplished a detailed theoretical analysis of the reasons responsible for the light-stimulated tunneling charge recombination. Let us consider these reasons.…”

Section: Dark Und Photostimulated Tunnel Reactions Of Nietalloporphyrinsmentioning

confidence: 99%

“…in which the primary light quantum excited state d' is followed by non-radiative transition to state a,,. Brickenstein et al (1984) obtained formulae for the electron tunneling probability for direct and indirect stimulation. For the ratio of probabilities, T. of indirect, W,.…”

Section: Dark Und Photostimulated Tunnel Reactions Of Nietalloporphyrinsmentioning

confidence: 99%

“…9, the difference in the efficiency of dark and photostimulated decay for MP+ and CCl, reaches lo'.'. If the photostimulation was due to the Frank-Condon factor increase, such a difference in the recombination efficiency (taking into account the light intensity I = J/cmZ s and characteristic lifetimes of excited state of pigment cation-radicals of lo-' s (Brickenstein et al, 1984)) would mean that the Frank-Condon factor for an electron-excited acceptor is = lo9 times more than for an unexcited one. Such a great difference for the Frank-Condon factors for electron tunneling on excited and unexcited acceptors seems improbable.…”

Section: Dark Und Photostimulated Tunnel Reactions Of Nietalloporphyrinsmentioning

confidence: 99%

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Long Range Electron Tunneling in Biological and Model Systems

Khairutdinov

Brickenstein

1986

Photochem & Photobiology

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Abstract-This review paper reports the data on the role of long range electron tunneling in photosynthetic and model systems. The main papers concerned with elucidation mechanisms and kinetical peculiarities of electron transfer in reaction centers of bacteria and green plants are considered. The paper reviews the articles on long range electron transfer in reactions of metalloporphyrinssynthetic analogs of the main natural pigment of photosynthesis, chlorophyll. Liquid and solid phase redox reactions of electronically excited porphyrin molecules, intramolecular and photosensitized electron transfer processes are considered.

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Section: Dark Und Photostimulated Tunnel Reactions Of Nietalloporphyrinsmentioning

confidence: 99%

Section: Dark Und Photostimulated Tunnel Reactions Of Nietalloporphyrinsmentioning

confidence: 99%

Section: Dark Und Photostimulated Tunnel Reactions Of Nietalloporphyrinsmentioning

confidence: 99%

Section: Dark Und Photostimulated Tunnel Reactions Of Nietalloporphyrinsmentioning

confidence: 99%

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Long Range Electron Tunneling in Biological and Model Systems

Khairutdinov

Brickenstein

1986

Photochem & Photobiology

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“…These very characteristic nets have been known for a long time and are described by Esben-Petersen (1907), Wesenberg-Lund (1911) and Alm (1926). Brickenstein (1955) gives an account of net spinning behaviour in this species.…”

Section: N E Ureclipsismentioning

confidence: 94%

The Taxonomy of British Polycentropid Larvae

EDINGTON

1964

Proceedings of the Zoological Society of London

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A key and descriptions are given for the identification of British polycentropid larvae. Early Continental descriptions include the Holocentropus and Cyrnus species which occur in Britain, but a consideration of British material has indicated that some changes are required in the characters used to separate these species. In both Polycentropus flavomaculatus and Holocentropus species the anal claws are right‐angled. It has been reported that P. flavomaculatus has only one dorsal spine on the anal claw and differs from Holocentropus where there are at least two such spines. Re‐examination of P. flavomaculatus larvae has shown that the anal claw bears two dorsal spines. The previously unknown larvae of Polycentropus kingi and Polycentropus multiguttatus are described. These two species, unlike P. flavomaculatus, have obtuse‐angled anal claws, and in this respectresemble Plectronemia. A new character based on the relative lengths of the prothoracic tibia and tarsus has been introduced to separate the three Polycentropus species from Holocentropus and Plectroenemia. The previously unknown larvae of Plectroenemia geniculata have been examined and differ from P. conspersa in the arrangement of bristles on the last abdominal segment and in the pigmentation of the labrum.

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Photoinduced electron tunneling reactions in chemistry and biology

Zamaraev¹,

Khairutdinov²

1992

Topics in Current Chemistry

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Photostimulated electron tunnel transfer in solid matrices

Cited by 11 publications

References 9 publications

Long Range Electron Tunneling in Biological and Model Systems

Long Range Electron Tunneling in Biological and Model Systems

The Taxonomy of British Polycentropid Larvae

Photoinduced electron tunneling reactions in chemistry and biology

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