Resonance Raman Spectroelectrochemistry. 3. Tunable Dye Laser Excitation Spectroscopy of the Lowest 2B1u Excited State of the Tetracyanoquinodimethane Anion Radical

David L. Jeanmaire; Richard P. Van Duyne

doi:10.1021/ja00430a002

Resonance Raman Spectroelectrochemistry. 3. Tunable Dye Laser Excitation Spectroscopy of the Lowest ²B_1u Excited State of the Tetracyanoquinodimethane Anion Radical

David L. Jeanmaire, Richard P. Van Duyne

Chemistry

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

43 Scopus citations

Abstract

Resonance Raman (RR) excitation spectra have been measured for the v₂, v₄, v₅, and v₉ totally symmetric normal modes of the tetracyanoquinodimethane monoanion radical using the hybrid technique of resonance Raman spectroelectrochemistry (RRSE). A CW tunable dye laser was used as the excitation source in these experiments to cover an excitation region of 15 000 to 17 850 cm^-1 within the ²B_3g ⟶ ²B_1u(1) transition of TCNQ·^-. These spectra reveal a substantial amount of vibronic fine structure information. An analysis of the excitation spectra has been carried out leading to frequency assignments for the electronic structure sensitive v₂′ (C≡N stretch) and v₄′ (C=C ring stretch + C=C wing stretch) modes in the 2B_1u(1) excited state.

Original language	English (US)
Pages (from-to)	4034-4039
Number of pages	6
Journal	Journal of the American Chemical Society
Volume	98
Issue number	14
DOIs	https://doi.org/10.1021/ja00430a002
State	Published - Jul 1 1976

ASJC Scopus subject areas

Catalysis
Chemistry(all)
Biochemistry
Colloid and Surface Chemistry

Access to Document

10.1021/ja00430a002

Cite this

@article{bfdfd3379bc9417691c551b91bfa0d80,

title = "Resonance Raman Spectroelectrochemistry. 3. Tunable Dye Laser Excitation Spectroscopy of the Lowest 2B1u Excited State of the Tetracyanoquinodimethane Anion Radical",

abstract = "Resonance Raman (RR) excitation spectra have been measured for the v2, v4, v5, and v9 totally symmetric normal modes of the tetracyanoquinodimethane monoanion radical using the hybrid technique of resonance Raman spectroelectrochemistry (RRSE). A CW tunable dye laser was used as the excitation source in these experiments to cover an excitation region of 15 000 to 17 850 cm-1 within the 2B3g ⟶ 2B1u(1) transition of TCNQ·-. These spectra reveal a substantial amount of vibronic fine structure information. An analysis of the excitation spectra has been carried out leading to frequency assignments for the electronic structure sensitive v2′ (C≡N stretch) and v4′ (C=C ring stretch + C=C wing stretch) modes in the 2B1u(1) excited state.",

author = "Jeanmaire, {David L.} and {Van Duyne}, {Richard P.}",

year = "1976",

month = jul,

day = "1",

doi = "10.1021/ja00430a002",

language = "English (US)",

volume = "98",

pages = "4034--4039",

journal = "Journal of the American Chemical Society",

issn = "0002-7863",

publisher = "American Chemical Society",

number = "14",

}

TY - JOUR

T1 - Resonance Raman Spectroelectrochemistry. 3. Tunable Dye Laser Excitation Spectroscopy of the Lowest 2B1u Excited State of the Tetracyanoquinodimethane Anion Radical

AU - Jeanmaire, David L.

AU - Van Duyne, Richard P.

PY - 1976/7/1

Y1 - 1976/7/1

N2 - Resonance Raman (RR) excitation spectra have been measured for the v2, v4, v5, and v9 totally symmetric normal modes of the tetracyanoquinodimethane monoanion radical using the hybrid technique of resonance Raman spectroelectrochemistry (RRSE). A CW tunable dye laser was used as the excitation source in these experiments to cover an excitation region of 15 000 to 17 850 cm-1 within the 2B3g ⟶ 2B1u(1) transition of TCNQ·-. These spectra reveal a substantial amount of vibronic fine structure information. An analysis of the excitation spectra has been carried out leading to frequency assignments for the electronic structure sensitive v2′ (C≡N stretch) and v4′ (C=C ring stretch + C=C wing stretch) modes in the 2B1u(1) excited state.

AB - Resonance Raman (RR) excitation spectra have been measured for the v2, v4, v5, and v9 totally symmetric normal modes of the tetracyanoquinodimethane monoanion radical using the hybrid technique of resonance Raman spectroelectrochemistry (RRSE). A CW tunable dye laser was used as the excitation source in these experiments to cover an excitation region of 15 000 to 17 850 cm-1 within the 2B3g ⟶ 2B1u(1) transition of TCNQ·-. These spectra reveal a substantial amount of vibronic fine structure information. An analysis of the excitation spectra has been carried out leading to frequency assignments for the electronic structure sensitive v2′ (C≡N stretch) and v4′ (C=C ring stretch + C=C wing stretch) modes in the 2B1u(1) excited state.

UR - http://www.scopus.com/inward/record.url?scp=0012098312&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0012098312&partnerID=8YFLogxK

U2 - 10.1021/ja00430a002

DO - 10.1021/ja00430a002

M3 - Article

AN - SCOPUS:0012098312

SN - 0002-7863

VL - 98

SP - 4034

EP - 4039

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

IS - 14

ER -

Resonance Raman Spectroelectrochemistry. 3. Tunable Dye Laser Excitation Spectroscopy of the Lowest ²B_1u Excited State of the Tetracyanoquinodimethane Anion Radical

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this