Ultra-violet band systems of GeSe and GeTe, and their relations to those of similar molecules

Barrow, R. F.; Jevons, W.

doi:10.1088/0959-5309/52/4/312

Cited by 16 publications

(13 citation statements)

References 14 publications

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“…The ultraviolet absorption spectra of a series of diatomic molecules formed by the Ge atom and group VIB atom have been studied long ago by Barrow and co-workers. , Each of the molecules GeO, GeS, GeSe, and GeTe shows a stong band of the type D−X in the UV region. Some weak bands of the type E−X for GeO, GeSe, and GeTe have also been detected.…”

Section: Introductionmentioning

confidence: 99%

“…These molecules are found to have 1 Σ + as the ground state. The vibrational analyses of the D−X system of GeSe and GeTe have been carried out from the measurements of the spectra emitted by the high-current positive-column discharges …”

Section: Introductionmentioning

confidence: 99%

“…The transition energy of the observed A1( 1 Π) ← X0 + ( 1 Σ + ) transition agrees well with the calculated value. The lifetimes of the excited AΠ and 2 1 Σ + states are estimated to be 0.42 and 0.45 μ s , respectively.…”

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confidence: 98%

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Low-lying Electronic States of GeSe: Multireference Singles and Doubles Configuration Interaction Study

Manna

Das

1998

J. Phys. Chem. A

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Several low-lying electronic states of GeSe up to the energy of 36 000 cm-1 have been studied by using the ab initio-based multireference singles and doubles configuration interaction calculations which include relativistic effective core potentials. Potential energy curves of 18 Λ−S states which dissociate into the ground-state limit Ge(3Pg)+Se(3Pg) have been computed. Effects of spin−orbit coupling on these states are also studied. We have also computed potential energy curves of bound Ω-states arising from those 18 Λ−S states within the energy limit of 31 000 cm-1. Spectroscopic constants (r e, T e, ωe, and βe) at equilibrium of all bound states are estimated. The ground state of GeSe is X0+ (1Σ+) originating mainly from σ2σ2σ2π4 and σ2σ2σ2π3π configurations with r e = 2.172 Å, ωe = 382 cm-1, and βe = 0.093 cm-1. The agreements with the available experimental values are fairly good. The spin−orbit interactions have little effects on the composition of the low-lying states. The transition energy of the observed A1(1Π) ← X0+ (1Σ+) transition agrees well with the calculated value. The lifetimes of the excited AΠ and 21Σ+ states are estimated to be 0.42 and 0.45 μs, respectively.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Low-lying Electronic States of GeSe: Multireference Singles and Doubles Configuration Interaction Study

Manna

Das

1998

J. Phys. Chem. A

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“…Unlike the lighter molecules in this class (GeS, SiSe, etc. ), investigation of the electronic spectrum of GeSe is limited to two early works [1,2]. Barrow and Jevons [1] first produced the spectrum in emission in the ultraviolet.…”

Section: Introductionmentioning

confidence: 99%

“…), investigation of the electronic spectrum of GeSe is limited to two early works [1,2]. Barrow and Jevons [1] first produced the spectrum in emission in the ultraviolet. Following this, Drummond and Barrow [2] observed the ultraviolet spectrum in absorption and attributed it to the D 1 P-X 1 R + and E 1 R + -X 1 R + transitions, in analogy with the other molecules like SiO, SiS, etc.…”

Section: Introductionmentioning

confidence: 99%

High-resolution Fourier transform emission spectroscopy of the A1Π–X1Σ+ system of 74Ge80Se

Shetty

Mishra

Kshirsagar

et al. 2010

Journal of Molecular Spectroscopy

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Zur Chemie der Kohlenstoffmonochalkogenide. I. Kohlenstoffmonosulfid

Steudel

1968

Zeitschrift anorg allge chemie

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Das durch elektrische Zersetzung von gasförmigem CS2 (0,1 Torr) erhältliche CS läßt sich bei −190°C isolieren und IR‐spektroskopisch nachweisen (12C23S: 1274, 13C32S: 1240 cm−1, Valenzkraftkonstante 8,4 mdyn/Å, Bindungsgrad 2,2). CS zerfällt spontan nach 3 CS → C3S2 + S, wobei als Nebenprodukt ein schwarzes CS‐Mischpolymerisat entsteht. Der Zerfallsmechanismus wird diskutiert. CS reagiert bei 25° mit Selen und Tellur zu SCSe bzw. SCTe, mit Chlor, Brom oder Jod zu den entsprechenden Thiocarbonyhalogeniden. Durch diese Reaktionen ist das CS als carbenanaloge Verbindung charakterisiert. Die Reaktionsprodukte der thermischen und elektrischen Zersetzung von gasförmigem Thiophosgen werden identifiziert, jedoch läßt sich bei diesen Reaktionen kein CS isolieren. Bei der Reaktion von H2CCl2 mit Na2S entsteht bei 200–400°C statt Thioformaldehyd ein CS2CH4‐Gemisch, was durch eine Dismutierung nach 2H2CS → CS2 + CH4 erklärt wird.

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Ultra-violet band systems of GeSe and GeTe, and their relations to those of similar molecules

Cited by 16 publications

References 14 publications

Low-lying Electronic States of GeSe: Multireference Singles and Doubles Configuration Interaction Study

Low-lying Electronic States of GeSe: Multireference Singles and Doubles Configuration Interaction Study

High-resolution Fourier transform emission spectroscopy of the A1Π–X1Σ+ system of 74Ge80Se

Zur Chemie der Kohlenstoffmonochalkogenide. I. Kohlenstoffmonosulfid

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