Intermolecular interaction of photoexcited Cu(/TMpy-P4) with water studied by transient resonance Raman and picosecond absorption spectroscopies

Sergei G. Kruglik; Vladimir V. Ermolenkov; Alexander G. Shvedko; Valentine A. Orlovich; Victor A. Galievsky; Vladimir S. Chirvony; Cees Otto; Pierre-Yves Turpin

doi:10.1016/S0009-2614(97)00362-X

Intermolecular interaction of photoexcited Cu(/TMpy-P4) with water studied by transient resonance Raman and picosecond absorption spectroscopies

Sergei G. Kruglik, Vladimir V. Ermolenkov, Alexander G. Shvedko, Valentine A. Orlovich, Victor A. Galievsky, Vladimir S. Chirvony, Cees Otto, Pierre-Yves Turpin

Research output: Contribution to journal › Article › Academic › peer-review

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Abstract

A photoinduced complex between Cu(TMpy-P4) and water molecules, reversibly axially coordinated to the central metal, was observed in picosecond transient absorption and nanosecond resonance Raman experiments. This complex is rapidly created (τ1 = 15 ± 5 ps) in the excited triplet (π, π*) state of Cu-porphyrin, and the subsequent relaxation is proposed to proceed via two parallel pathways. One is fast and efficient (≥90% of molecules), and presumably involves a (π, d) charge-transfer state. The second pathway is slow (τ2 >> 1 ns), has a low quantum yield (≤10%) and involves the excited (d, d) state which is responsible for transient Raman features at ≈ 1553 cm−1 (ν2*) and ≈ 1347 cm−1 (ν4*), and for low-intensity long-lived transient absorption features.

Original language	English
Pages (from-to)	293-298
Number of pages	6
Journal	Chemical physics letters
Volume	270
Issue number	3-4
DOIs	https://doi.org/10.1016/S0009-2614(97)00362-X
Publication status	Published - 1997

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Kruglik, S. G., Ermolenkov, V. V., Shvedko, A. G., Orlovich, V. A., Galievsky, V. A., Chirvony, V. S., Otto, C., & Turpin, P-Y. (1997). Intermolecular interaction of photoexcited Cu(/TMpy-P4) with water studied by transient resonance Raman and picosecond absorption spectroscopies. Chemical physics letters, 270(3-4), 293-298. https://doi.org/10.1016/S0009-2614(97)00362-X

Kruglik, Sergei G. ; Ermolenkov, Vladimir V. ; Shvedko, Alexander G. ; Orlovich, Valentine A. ; Galievsky, Victor A. ; Chirvony, Vladimir S. ; Otto, Cees ; Turpin, Pierre-Yves. / Intermolecular interaction of photoexcited Cu(/TMpy-P4) with water studied by transient resonance Raman and picosecond absorption spectroscopies. In: Chemical physics letters. 1997 ; Vol. 270, No. 3-4. pp. 293-298.

@article{360f3634c51e4ff99593afa80f8bd881,

title = "Intermolecular interaction of photoexcited Cu(/TMpy-P4) with water studied by transient resonance Raman and picosecond absorption spectroscopies",

abstract = "A photoinduced complex between Cu(TMpy-P4) and water molecules, reversibly axially coordinated to the central metal, was observed in picosecond transient absorption and nanosecond resonance Raman experiments. This complex is rapidly created (τ1 = 15 ± 5 ps) in the excited triplet (π, π*) state of Cu-porphyrin, and the subsequent relaxation is proposed to proceed via two parallel pathways. One is fast and efficient (≥90% of molecules), and presumably involves a (π, d) charge-transfer state. The second pathway is slow (τ2 >> 1 ns), has a low quantum yield (≤10%) and involves the excited (d, d) state which is responsible for transient Raman features at ≈ 1553 cm−1 (ν2*) and ≈ 1347 cm−1 (ν4*), and for low-intensity long-lived transient absorption features.",

author = "Kruglik, {Sergei G.} and Ermolenkov, {Vladimir V.} and Shvedko, {Alexander G.} and Orlovich, {Valentine A.} and Galievsky, {Victor A.} and Chirvony, {Vladimir S.} and Cees Otto and Pierre-Yves Turpin",

year = "1997",

doi = "10.1016/S0009-2614(97)00362-X",

language = "English",

volume = "270",

pages = "293--298",

journal = "Chemical physics letters",

issn = "0009-2614",

publisher = "Elsevier",

number = "3-4",

}

Intermolecular interaction of photoexcited Cu(/TMpy-P4) with water studied by transient resonance Raman and picosecond absorption spectroscopies. / Kruglik, Sergei G.; Ermolenkov, Vladimir V.; Shvedko, Alexander G.; Orlovich, Valentine A.; Galievsky, Victor A.; Chirvony, Vladimir S.; Otto, Cees; Turpin, Pierre-Yves.

In: Chemical physics letters, Vol. 270, No. 3-4, 1997, p. 293-298.

Research output: Contribution to journal › Article › Academic › peer-review

TY - JOUR

T1 - Intermolecular interaction of photoexcited Cu(/TMpy-P4) with water studied by transient resonance Raman and picosecond absorption spectroscopies

AU - Kruglik, Sergei G.

AU - Ermolenkov, Vladimir V.

AU - Shvedko, Alexander G.

AU - Orlovich, Valentine A.

AU - Galievsky, Victor A.

AU - Chirvony, Vladimir S.

AU - Otto, Cees

AU - Turpin, Pierre-Yves

PY - 1997

Y1 - 1997

N2 - A photoinduced complex between Cu(TMpy-P4) and water molecules, reversibly axially coordinated to the central metal, was observed in picosecond transient absorption and nanosecond resonance Raman experiments. This complex is rapidly created (τ1 = 15 ± 5 ps) in the excited triplet (π, π*) state of Cu-porphyrin, and the subsequent relaxation is proposed to proceed via two parallel pathways. One is fast and efficient (≥90% of molecules), and presumably involves a (π, d) charge-transfer state. The second pathway is slow (τ2 >> 1 ns), has a low quantum yield (≤10%) and involves the excited (d, d) state which is responsible for transient Raman features at ≈ 1553 cm−1 (ν2*) and ≈ 1347 cm−1 (ν4*), and for low-intensity long-lived transient absorption features.

AB - A photoinduced complex between Cu(TMpy-P4) and water molecules, reversibly axially coordinated to the central metal, was observed in picosecond transient absorption and nanosecond resonance Raman experiments. This complex is rapidly created (τ1 = 15 ± 5 ps) in the excited triplet (π, π*) state of Cu-porphyrin, and the subsequent relaxation is proposed to proceed via two parallel pathways. One is fast and efficient (≥90% of molecules), and presumably involves a (π, d) charge-transfer state. The second pathway is slow (τ2 >> 1 ns), has a low quantum yield (≤10%) and involves the excited (d, d) state which is responsible for transient Raman features at ≈ 1553 cm−1 (ν2*) and ≈ 1347 cm−1 (ν4*), and for low-intensity long-lived transient absorption features.

U2 - 10.1016/S0009-2614(97)00362-X

DO - 10.1016/S0009-2614(97)00362-X

M3 - Article

VL - 270

SP - 293

EP - 298

JO - Chemical physics letters

JF - Chemical physics letters

SN - 0009-2614

IS - 3-4

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