What question did this study set out to answer?

To characterize the infrared vibrational absorption spectrum and coupled lattice dynamics of solid carbon monoxide at 20°K.

September 1, 1961The Journal of Chemical Physics

Infrared Spectrum of Solid Carbon Monoxide

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Authors

GEGeorge E. EwingData Sciences International (United States)GPGeorge C. PimentelLawrence Berkeley National Laboratory

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Implication

Spectroscopic analysis reveals vibrational and lattice modes in solid carbon monoxide at 20 K, indicating both translational and librational motions in condensed phases.

Key Points

To characterize the infrared vibrational absorption spectrum and coupled lattice dynamics of solid carbon monoxide at 20°K.
Measured the infrared spectrum of solid carbon monoxide at 20°K across fundamental and overtone absorption regions.
Calculated vibrational frequency shifts across multiple isotopic species using condensed-phase frequency shift models.
Evaluated broad absorption features to model contributions from translational and librational lattice modes.
Resolved sharp vibrational features (bandwidths ~1 cm−1) assigned to isotopic species: C12O16 at 2138.1 cm−1, C12O17 at 2112.3 cm−1, C13O16 at 2092.2 cm−1, and C12O18 at 2088.4 cm−1.
Identified a broad absorption band centered at 2208 cm−1 with a bandwidth of approximately 40 cm−1, attributed to combinations of fundamental vibrations with crystal lattice modes.
Theoretical calculations indicated that the coupled lattice modes involve both translational and librational molecular motions.

Cite This Study

Ewing et al. (1961) studied this question.

synapsesocial.com/papers/6a7031c3febe604dd708fa64 https://doi.org/10.1063/1.1701239

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Implication

Spectroscopic analysis reveals vibrational and lattice modes in solid carbon monoxide at 20 K, indicating both translational and librational motions in condensed phases.

Infrared Spectrum of Solid Carbon Monoxide

Discussion

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Implication

Key Points

Cite This Study

Infrared Spectrum of Solid Carbon Monoxide

Discussion

Member takes

Implication

Key Points

Cite This Study

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