What question did this study set out to answer?

To measure and analyze the ultraviolet absorption spectra and molecular constants of transient SH and SD radicals produced by flash photolysis.

December 1, 1952The Journal of Chemical Physics

Absorption Spectra of SH and SD Produced by Flash Photolysis of H2S and D2S

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Authors

DRD. A. RamsaySteacie Institute for Molecular Sciences

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Implication

Spectroscopic analysis demonstrates predissociation and molecular constants of SH and SD radicals from photolyzed sulfides, indicating ground-state dissociation energy boundaries between 66.3 and...

Key Points

To measure and analyze the ultraviolet absorption spectra and molecular constants of transient SH and SD radicals produced by flash photolysis.
Irradiated gaseous H2S and D2S in a flash photolysis apparatus.
Photographed the absorption spectra of reaction products within 1 millisecond of the flash using the second order of a 21 ft grating spectrograph.
Resolved the (0,0) and (1,0) bands of SH and SD, determining SH constants for the 2Σ+ state (Be′=8.5381 cm−1, αe′=0.5091 cm−1, re′=1.4215 Å, ν00=30,662.42 cm−1) and 2Π state (B0″=9.4611 cm−1, r0″=1.3503 Å, A=−376.96 cm−1).
Observed diffuse rotational lines in the (1,0) SH band, indicating predissociation occurring in the first vibrational level of the 2Σ+ state.
Determined the ground-state dissociation energy limits of SH to be an upper limit of 92.7 kcal and a lower limit of 66.3 kcal.

Cite This Study

D. A. Ramsay (1952) studied this question.

synapsesocial.com/papers/6a7248e826770c2b8de164cf https://doi.org/10.1063/1.1700339

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Implication

Spectroscopic analysis demonstrates predissociation and molecular constants of SH and SD radicals from photolyzed sulfides, indicating ground-state dissociation energy boundaries between 66.3 and...

Absorption Spectra of SH and SD Produced by Flash Photolysis of H2S and D2S

Discussion

Member takes

Implication

Key Points

Cite This Study

Absorption Spectra of SH and SD Produced by Flash Photolysis of H2S and D2S

Discussion

Member takes

Implication

Key Points

Cite This Study

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