Untersuchungen an selen-verbindungen

Hopf, G.; Paetzold, R.

doi:10.1016/0022-2860(72)85138-x

Cited by 7 publications

(1 citation statement)

References 15 publications

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“…Other spectroscopic work includes several microwave studies that have led to determination of the hyperfine constants and the harmonic force field . Besides the microwave region, gas-phase vibrational spectroscopy has been used to assign the six fundamental modes of pyramidal SOCl 2 using both Raman and infrared spectroscopy. ,− Infrared spectroscopy has also been used as a tool to investigate solvent effects on liquid-phase band positions and intensities. , Recently, both rapid-scan and step-scan time-resolved FTIR spectroscopy have been shown to be useful tools for investigating chemical kinetics. , DeVore and Gallaher used time-resolved FTIR to investigate SOCl 2 's reaction with NO 2 in the gas phase and found that the initial reaction is first order in SOCl 2 and second order in NO 2 , with the initial products being NOCl, NO 2 Cl, and SO 2 . Although SOCl 2 is known to react rapidly, even violently, with water in the condensed phase, relatively little is known about its gas-phase chemistry or general atmospheric fate, other than the reaction with NO 2 .…”

Section: Introductionmentioning

confidence: 99%

Gas-Phase Hydrolysis of SOCl₂ at 297 and 309 K: Implications for Its Atmospheric Fate

Johnson

Disselkamp

et al. 2003

J. Phys. Chem. A

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The gas-phase hydrolysis of thionyl chloride (SOCl 2 ) has been investigated at 297 and 309 K in a mixing chamber using FTIR spectroscopy. Reagent concentrations of ∼80 ppmv SOCl 2 at relative humidities (RH) of 1-63% were studied at 309 K, while humidities of 1-85% were used in the 297 K studies, all at a total pressure of ∼1 atm in synthetic air. In each experiment, an aliquot of SOCl 2 (g) was rapidly introduced into a chamber at fixed RH, quickly reaching a maximum and then decreasing exponentially, as monitored by time-resolved infrared spectroscopy. The only observed reaction products were HCl(g) and SO 2 (g), which were formed in a molar ratio of ∼2:1. The SOCl 2 decay data are consistent with, but do not prove, the reaction being a gas-phase hydrolysis that is first order in both SOCl 2 and H 2 O, with the RH-dependent decay data indirectly suggesting the first-order dependence on H 2 O(g). The 297 K rate constant was measured as (6.3 ( 3.5) × 10 -21 cm 3 /molecule-s. Confirming previous results, SOCl 2 absorbed only at λ < 290 nm, which suggests hydrolysis as the main loss mechanism in the troposphere at typical temperatures and humidities.

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Section: Introductionmentioning

confidence: 99%

Gas-Phase Hydrolysis of SOCl₂ at 297 and 309 K: Implications for Its Atmospheric Fate

Johnson

Disselkamp

et al. 2003

J. Phys. Chem. A

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Tetra‐ and higher‐valent (hypervalent) derivatives of selenium and tellurium

Bergman

Engman

Sidén

1986

PATAI'S Chemistry of Functional Groups

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