Vibrational relaxation of ND2(0,1,0) radicals studied by fast magnetic-field-jump time-resolved LMR

A. I. Chichinin; L. N. Krasnoperov

doi:10.1016/0009-2614(85)80040-3

Vibrational relaxation of ND₂(0,1,0) radicals studied by fast magnetic-field-jump time-resolved LMR

A. I. Chichinin, L. N. Krasnoperov

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Abstract

A method of studying vibrational relaxation of gaseous free radicals has been developed using the time-resolved LMR technique. The LMR signal saturation kinetics is measured under a fast adjustment to the maximum of the first derivative of the absorption line with the help of a fast magnetic field jump (80 G, 10 μs). The vibrational relaxation rate constants (V-V plus V-T) have been measured for ND₂(0,1,0) on ND₃, CF₄ and Ar: (2.7 ± 1)×10^-11, (1.9 ± 0.4)×10^-11 and (2.4 ± 0.7)×10^-14 cm³/s, respectively, (± 2σ). The matrix element of the vibrational transition moment for ND₂ ν₂ vibration is estimated to be 0.056 ± 0.02 D.

Original language	English (US)
Pages (from-to)	343-348
Number of pages	6
Journal	Chemical Physics Letters
Volume	115
Issue number	3
DOIs	https://doi.org/10.1016/0009-2614(85)80040-3
State	Published - Apr 5 1985
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1016/0009-2614(85)80040-3

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title = "Vibrational relaxation of ND2(0,1,0) radicals studied by fast magnetic-field-jump time-resolved LMR",

abstract = "A method of studying vibrational relaxation of gaseous free radicals has been developed using the time-resolved LMR technique. The LMR signal saturation kinetics is measured under a fast adjustment to the maximum of the first derivative of the absorption line with the help of a fast magnetic field jump (80 G, 10 μs). The vibrational relaxation rate constants (V-V plus V-T) have been measured for ND2(0,1,0) on ND3, CF4 and Ar: (2.7 ± 1)×10-11, (1.9 ± 0.4)×10-11 and (2.4 ± 0.7)×10-14 cm3/s, respectively, (± 2σ). The matrix element of the vibrational transition moment for ND2 ν2 vibration is estimated to be 0.056 ± 0.02 D.",

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T1 - Vibrational relaxation of ND2(0,1,0) radicals studied by fast magnetic-field-jump time-resolved LMR

AU - Chichinin, A. I.

AU - Krasnoperov, L. N.

PY - 1985/4/5

Y1 - 1985/4/5

N2 - A method of studying vibrational relaxation of gaseous free radicals has been developed using the time-resolved LMR technique. The LMR signal saturation kinetics is measured under a fast adjustment to the maximum of the first derivative of the absorption line with the help of a fast magnetic field jump (80 G, 10 μs). The vibrational relaxation rate constants (V-V plus V-T) have been measured for ND2(0,1,0) on ND3, CF4 and Ar: (2.7 ± 1)×10-11, (1.9 ± 0.4)×10-11 and (2.4 ± 0.7)×10-14 cm3/s, respectively, (± 2σ). The matrix element of the vibrational transition moment for ND2 ν2 vibration is estimated to be 0.056 ± 0.02 D.

AB - A method of studying vibrational relaxation of gaseous free radicals has been developed using the time-resolved LMR technique. The LMR signal saturation kinetics is measured under a fast adjustment to the maximum of the first derivative of the absorption line with the help of a fast magnetic field jump (80 G, 10 μs). The vibrational relaxation rate constants (V-V plus V-T) have been measured for ND2(0,1,0) on ND3, CF4 and Ar: (2.7 ± 1)×10-11, (1.9 ± 0.4)×10-11 and (2.4 ± 0.7)×10-14 cm3/s, respectively, (± 2σ). The matrix element of the vibrational transition moment for ND2 ν2 vibration is estimated to be 0.056 ± 0.02 D.

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JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 3

ER -

Vibrational relaxation of ND₂(0,1,0) radicals studied by fast magnetic-field-jump time-resolved LMR

Abstract

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