High-Resolution FTIR Spectrum of HSSH in the SH-Stretching Region: The ν5 Band

Mittler, P.; Yamada, K.; Winnewisser, G.; Birk, Manfred

doi:10.1006/jmsp.1994.1083

Cited by 16 publications

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“…24,29 In the 193-nm photolysis, this absorption band disappears typically after some hundreds of pulses. S 2 molecules were found to be the major product among sulfur-containing species in 193-nm photolysis of H 2 S 2 .…”

Section: B H 2 S 2 /Ar Matricesmentioning

confidence: 99%

Low-temperature thermoluminescence in solid argon: Short-range mobility of atoms

Khriachtchev

Pettersson

Pehkonen

et al. 1999

The Journal of Chemical Physics

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Section: B H 2 S 2 /Ar Matricesmentioning

confidence: 99%

Low-temperature thermoluminescence in solid argon: Short-range mobility of atoms

Khriachtchev

Pettersson

Pehkonen

et al. 1999

The Journal of Chemical Physics

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“…3. The small peak at ∼2540 cm −1 (SH stretching) [8,9] in the curve C, corresponding to thiolated silica film, proves the presence of thiol group (R-SH) on the silica matrix. The inset in Fig.…”

Section: Methodsmentioning

confidence: 82%

Functionalized mesoporous silica films for gas sensing applications

Palaniappan

Tay

2006

J Electroceram

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Mesoporous silica films prepared by sol gel process and argon plasma calcination have been used to form hybrids for gas sensing applications by entrapping sensitive materials in the porous network. Plasma calcination, a low temperature process, is employed to gel the sol instead of conventional thermal calcination. Polymers and surfactants are used as templates for generating the mesoporous structure upon removal by the plasma calcination. TEM, EDX and FT-IR are used to characterize the obtained films. To demonstrate the gas sensing property of the functionalized silica films, 10 MHz Quartz Crystal Microbalance (QCM) coated with β-cyclodextrin (β-CD) functionalized silica film is tested as a sensor for benzene vapor detection. The higher surface area of the mesoporous silica films could accommodate more receptor molecules (β-CD molecules) and subsequently more target analytes that enhance the QCM response. The sensitivity of the QCM is enhanced by depositing plasma calcined mesoporous sensing films on the electrodes.

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“…e Previous theoretical geometrical parameters at the HF/VnZ(Q,5,6) + fc-CCSD(T)/VnZ(q,5) + CV/CCSD(T)/CVQZ level of theory with full-T,Q corrections and DPT2 corrections from [ 82 ]. f Previous experimental rotational constants from [ 83 ]. g Previous experimental rotational constants from [ 84 ].…”

Section: Figurementioning

confidence: 99%

Spectral Signatures of Hydrogen Thioperoxide (HOSH) and Hydrogen Persulfide (HSSH): Possible Molecular Sulfur Sinks in the Dense ISM

2022

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For decades, sulfur has remained underdetected in molecular form within the dense interstellar medium (ISM), and somewhere a molecular sulfur sink exists where it may be hiding. With the discovery of hydrogen peroxide (HOOH) in the ISM in 2011, a natural starting point may be found in sulfur-bearing analogs that are chemically similar to HOOH: hydrogen thioperoxide (HOSH) and hydrogen persulfide (HSSH). The present theoretical study couples the accuracy in the anharmonic fundamental vibrational frequencies from the explicitly correlated coupled cluster theory with the accurate rotational constants provided by canonical high-level coupled cluster theory to produce rovibrational spectra for use in the potential observation of HOSH and HSSH. The ν6 mode for HSSH at 886.1 cm−1 is within 0.2 cm−1 of the gas-phase experiment, and the B0 rotational constant for HSSH of 6979.5 MHz is within 9.0 MHz of the experimental benchmarks, implying that the unknown spectral features (such as the first overtones and combination bands) provided herein are similarly accurate. Notably, a previous experimentally-attributed 2ν1 mode, at 7041.8 cm−1, has been reassigned to the ν1+ν5 combination band based on the present work’s ν1+ν5 value at 7034.3 cm−1. The most intense vibrational transitions for each molecule are the torsions, with HOSH having a more intense transition of 72 km/mol compared to HSSH’s intensity of 14 km/mol. Furthermore, HOSH has a larger net dipole moment of 1.60 D compared to HSSH’s 1.15 D. While HOSH may be the more likely candidate of the two for possible astronomical observation via vibrational spectroscopy due to the notable difference in their intensities, both HSSH and HOSH have large enough net dipole moments to be detectable by rotational spectroscopy to discover the role these molecules may have as possible molecular sulfur sinks in the dense ISM.

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High-Resolution FTIR Spectrum of HSSH in the SH-Stretching Region: The ν5 Band

Cited by 16 publications

References 0 publications

Low-temperature thermoluminescence in solid argon: Short-range mobility of atoms

Low-temperature thermoluminescence in solid argon: Short-range mobility of atoms

Functionalized mesoporous silica films for gas sensing applications

Spectral Signatures of Hydrogen Thioperoxide (HOSH) and Hydrogen Persulfide (HSSH): Possible Molecular Sulfur Sinks in the Dense ISM

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