Dipole moment of the lowest Π bending state of (HCN)2

A. Grushow; W. A. Burns; K. R. Leopold

doi:10.1006/jmsp.1995.1075

Dipole moment of the lowest Π bending state of (HCN)₂

A. Grushow, W. A. Burns, K. R. Leopold

Chemistry (Twin Cities)

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Abstract

The dipole moment of the lowest Π bending state of (HCN)₂ has been determined by tunable far-infrared Stark spectroscopy to be 6.023(31) D. This represents a reduction in dipole moment of 0.54(5) D relative to the ground state, which is over five times too large for simple harmonic oscillations of uncoupled rods. Although qualitative comparison with related systems suggests the possibility of a secondary minimum near the T-shaped configuration, electrostatic modeling does not support the existence of such a feature.

Original language	English (US)
Pages (from-to)	335-345
Number of pages	11
Journal	Journal of molecular spectroscopy
Volume	170
Issue number	2
DOIs	https://doi.org/10.1006/jmsp.1995.1075
State	Published - Apr 1995

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abstract = "The dipole moment of the lowest Π bending state of (HCN)2 has been determined by tunable far-infrared Stark spectroscopy to be 6.023(31) D. This represents a reduction in dipole moment of 0.54(5) D relative to the ground state, which is over five times too large for simple harmonic oscillations of uncoupled rods. Although qualitative comparison with related systems suggests the possibility of a secondary minimum near the T-shaped configuration, electrostatic modeling does not support the existence of such a feature.",

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AU - Burns, W. A.

AU - Leopold, K. R.

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N2 - The dipole moment of the lowest Π bending state of (HCN)2 has been determined by tunable far-infrared Stark spectroscopy to be 6.023(31) D. This represents a reduction in dipole moment of 0.54(5) D relative to the ground state, which is over five times too large for simple harmonic oscillations of uncoupled rods. Although qualitative comparison with related systems suggests the possibility of a secondary minimum near the T-shaped configuration, electrostatic modeling does not support the existence of such a feature.

AB - The dipole moment of the lowest Π bending state of (HCN)2 has been determined by tunable far-infrared Stark spectroscopy to be 6.023(31) D. This represents a reduction in dipole moment of 0.54(5) D relative to the ground state, which is over five times too large for simple harmonic oscillations of uncoupled rods. Although qualitative comparison with related systems suggests the possibility of a secondary minimum near the T-shaped configuration, electrostatic modeling does not support the existence of such a feature.

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Dipole moment of the lowest Π bending state of (HCN)₂

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