Directional properties in photodissociation: A probe for the symmetry and geometry of excited states of dimethylnitrosamine and tert-butyl nitrite

R. Lavi; D. Schwartz-Lavi; I. Bar; S. Rosenwaks

doi:10.1021/j100305a004

Directional properties in photodissociation: A probe for the symmetry and geometry of excited states of dimethylnitrosamine and tert-butyl nitrite

R. Lavi, D. Schwartz-Lavi, I. Bar, S. Rosenwaks

Department of Physics

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Abstract

The rotational alignment, Λ-doubling, and spin-orbit populations of the NO fragment following the photodissociation of (CH₃)₂NNO and (CH₃)₃CONO in different absorption bands are determined. The results for the S₁(nπ*) ← S₀ and S₂(ππ*) ← S₀ transitions in both molecules indicate planarity of the fragmentation processes and an A″ symmetry of the S₁ state. For the S₂(ππ*) ← S₀ transition in (CH₃)₂NNO the results imply an A′ symmetry of the S₂ state. The values obtained for the alignment are indicative of the difference between the directions of the transition dipole moment for the S₁(nπ*) ← S₀ and the S₂(ππ*) ← S₀ transitions.

Original language	English
Pages (from-to)	5398-5402
Number of pages	5
Journal	Journal of Physical Chemistry
Volume	91
Issue number	21
DOIs	https://doi.org/10.1021/j100305a004
State	Published - 1 Jan 1987

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Physical and Theoretical Chemistry

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title = "Directional properties in photodissociation: A probe for the symmetry and geometry of excited states of dimethylnitrosamine and tert-butyl nitrite",

abstract = "The rotational alignment, Λ-doubling, and spin-orbit populations of the NO fragment following the photodissociation of (CH3)2NNO and (CH3)3CONO in different absorption bands are determined. The results for the S1(nπ*) ← S0 and S2(ππ*) ← S0 transitions in both molecules indicate planarity of the fragmentation processes and an A″ symmetry of the S1 state. For the S2(ππ*) ← S0 transition in (CH3)2NNO the results imply an A′ symmetry of the S2 state. The values obtained for the alignment are indicative of the difference between the directions of the transition dipole moment for the S1(nπ*) ← S0 and the S2(ππ*) ← S0 transitions.",

author = "R. Lavi and D. Schwartz-Lavi and I. Bar and S. Rosenwaks",

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T1 - Directional properties in photodissociation

T2 - A probe for the symmetry and geometry of excited states of dimethylnitrosamine and tert-butyl nitrite

AU - Lavi, R.

AU - Schwartz-Lavi, D.

AU - Bar, I.

AU - Rosenwaks, S.

PY - 1987/1/1

Y1 - 1987/1/1

N2 - The rotational alignment, Λ-doubling, and spin-orbit populations of the NO fragment following the photodissociation of (CH3)2NNO and (CH3)3CONO in different absorption bands are determined. The results for the S1(nπ*) ← S0 and S2(ππ*) ← S0 transitions in both molecules indicate planarity of the fragmentation processes and an A″ symmetry of the S1 state. For the S2(ππ*) ← S0 transition in (CH3)2NNO the results imply an A′ symmetry of the S2 state. The values obtained for the alignment are indicative of the difference between the directions of the transition dipole moment for the S1(nπ*) ← S0 and the S2(ππ*) ← S0 transitions.

AB - The rotational alignment, Λ-doubling, and spin-orbit populations of the NO fragment following the photodissociation of (CH3)2NNO and (CH3)3CONO in different absorption bands are determined. The results for the S1(nπ*) ← S0 and S2(ππ*) ← S0 transitions in both molecules indicate planarity of the fragmentation processes and an A″ symmetry of the S1 state. For the S2(ππ*) ← S0 transition in (CH3)2NNO the results imply an A′ symmetry of the S2 state. The values obtained for the alignment are indicative of the difference between the directions of the transition dipole moment for the S1(nπ*) ← S0 and the S2(ππ*) ← S0 transitions.

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Directional properties in photodissociation: A probe for the symmetry and geometry of excited states of dimethylnitrosamine and tert-butyl nitrite

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