Laser-induced fluorescence of matrix-isolated HCCCCCN+ and HCCCCCCCN+

Alice M. Smith; Jürgen Agreiter; Vladimir E. Bondybey

doi:10.1016/0009-2614(95)00915-Q

Laser-induced fluorescence of matrix-isolated HCCCCCN⁺ and HCCCCCCCN⁺

Alice M. Smith
, Jürgen Agreiter
, Vladimir E. Bondybey

Chair of Physical Chemistry

Technical University of Munich

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

21 Scopus citations

Abstract

The cyanodiacetylene (HC₅N⁺) and cyanotriacetylene (HC₇N⁺) cations were produced in a pulsed supersonic discharge through a dilute cyanoacetylene (HC₃N) neon mixture, and isolated in solid neon at 5-7 K. The A²Π-X²Π transitions of these cations were investigated by means of laser excitation and Fourier-transform emission spectroscopy. New ground-state vibrational information is obtained for HC₅N⁺ and HC₇N⁺. The latter is identified with the help of a particle-in-a-box model of electronic transition energies of these long-chain linear ions. Its identity is confirmed by analysis of the observed vibronic structure. Interesting matrix site effects lead to the observation of the ΔΩ = ± 1 transitions for one of the two sites. These yield the spin-orbit splitting constants A₀₀ = 92 cm^-1and A₀ = 17 cm^-1 for HC₅N⁺ and A₀₀ = 91 cm^-1 and A₀ = 19 cm^-1 for HC₇N⁺.

Original language	English
Pages (from-to)	379-387
Number of pages	9
Journal	Chemical Physics Letters
Volume	244
Issue number	5-6
DOIs	https://doi.org/10.1016/0009-2614(95)00915-Q
State	Published - 13 Oct 1995

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@article{26c48b2d37994a3981aa35c76344235f,

title = "Laser-induced fluorescence of matrix-isolated HCCCCCN+ and HCCCCCCCN+",

abstract = "The cyanodiacetylene (HC5N+) and cyanotriacetylene (HC7N+) cations were produced in a pulsed supersonic discharge through a dilute cyanoacetylene (HC3N) neon mixture, and isolated in solid neon at 5-7 K. The A2Π-X2Π transitions of these cations were investigated by means of laser excitation and Fourier-transform emission spectroscopy. New ground-state vibrational information is obtained for HC5N+ and HC7N+. The latter is identified with the help of a particle-in-a-box model of electronic transition energies of these long-chain linear ions. Its identity is confirmed by analysis of the observed vibronic structure. Interesting matrix site effects lead to the observation of the ΔΩ = ± 1 transitions for one of the two sites. These yield the spin-orbit splitting constants A00 = 92 cm-1and A0 = 17 cm-1 for HC5N+ and A00 = 91 cm-1 and A0 = 19 cm-1 for HC7N+.",

author = "Smith, \{Alice M.\} and J{\"u}rgen Agreiter and Bondybey, \{Vladimir E.\}",

note = "Funding Information: We thank Klaus Fritz for the preparation of HC 3N . Research support from the Deutsche Forschungsge-meinschaft is gratefully acknowledged.",

year = "1995",

month = oct,

day = "13",

doi = "10.1016/0009-2614(95)00915-Q",

language = "English",

volume = "244",

pages = "379--387",

journal = "Chemical Physics Letters",

issn = "0009-2614",

publisher = "Elsevier B.V.",

number = "5-6",

}

TY - JOUR

T1 - Laser-induced fluorescence of matrix-isolated HCCCCCN+ and HCCCCCCCN+

AU - Smith, Alice M.

AU - Agreiter, Jürgen

AU - Bondybey, Vladimir E.

N1 - Funding Information: We thank Klaus Fritz for the preparation of HC 3N . Research support from the Deutsche Forschungsge-meinschaft is gratefully acknowledged.

PY - 1995/10/13

Y1 - 1995/10/13

N2 - The cyanodiacetylene (HC5N+) and cyanotriacetylene (HC7N+) cations were produced in a pulsed supersonic discharge through a dilute cyanoacetylene (HC3N) neon mixture, and isolated in solid neon at 5-7 K. The A2Π-X2Π transitions of these cations were investigated by means of laser excitation and Fourier-transform emission spectroscopy. New ground-state vibrational information is obtained for HC5N+ and HC7N+. The latter is identified with the help of a particle-in-a-box model of electronic transition energies of these long-chain linear ions. Its identity is confirmed by analysis of the observed vibronic structure. Interesting matrix site effects lead to the observation of the ΔΩ = ± 1 transitions for one of the two sites. These yield the spin-orbit splitting constants A00 = 92 cm-1and A0 = 17 cm-1 for HC5N+ and A00 = 91 cm-1 and A0 = 19 cm-1 for HC7N+.

AB - The cyanodiacetylene (HC5N+) and cyanotriacetylene (HC7N+) cations were produced in a pulsed supersonic discharge through a dilute cyanoacetylene (HC3N) neon mixture, and isolated in solid neon at 5-7 K. The A2Π-X2Π transitions of these cations were investigated by means of laser excitation and Fourier-transform emission spectroscopy. New ground-state vibrational information is obtained for HC5N+ and HC7N+. The latter is identified with the help of a particle-in-a-box model of electronic transition energies of these long-chain linear ions. Its identity is confirmed by analysis of the observed vibronic structure. Interesting matrix site effects lead to the observation of the ΔΩ = ± 1 transitions for one of the two sites. These yield the spin-orbit splitting constants A00 = 92 cm-1and A0 = 17 cm-1 for HC5N+ and A00 = 91 cm-1 and A0 = 19 cm-1 for HC7N+.

UR - https://www.scopus.com/pages/publications/0000275418

U2 - 10.1016/0009-2614(95)00915-Q

DO - 10.1016/0009-2614(95)00915-Q

M3 - Article

AN - SCOPUS:0000275418

SN - 0009-2614

VL - 244

SP - 379

EP - 387

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 5-6

ER -

Laser-induced fluorescence of matrix-isolated HCCCCCN⁺ and HCCCCCCCN⁺

Abstract

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