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Sheo Mukund

Homi Bhabha National Institute

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Journal of Chemical Physics | 2012

Energy linkage between the singlet and triplet manifolds in LaH, and observation of new low-energy states

Sheo Mukund; Suresh Yarlagadda; Soumen Bhattacharyya; S. G. Nakhate

Wavelength-resolved fluorescence spectra of jet-cooled LaH were obtained from D1, E1, and 0(+)((3)Σ(-)) states by exciting isolated rotational levels. The observation of a(3)Δ(1) and a(3)Δ(2) states at 1259.5(5) and 1646(1) cm(-1), respectively, established the missing energy link between the singlet and triplet manifolds. The low-energy b(3)Π(0,1) and B(1)Δ(2) states predicted earlier from ab initio studies were also observed for the first time. Vibrational constants ω(e) = 1418(2) cm(-1), ω(e)x(e) = 15.6(7) cm(-1) for the ground and ΔG(1∕2) = 1326.1(7) and 1312(1) cm(-1), respectively, for the a(3)Δ(1) and b(3)Π(1) states were also determined. Vibrational frequencies were found to be in excellent agreement with earlier ab initio values. However, ab initio term energies and spin-orbit separation of (3)Δ(2)-(3)Δ(1) and (3)Π(1)-(3)Π(0) were found to be in poor agreement with the present observations. Also, the (3)Π state that was predicted to be inverted is observed to be regular.

Chemical Physics Letters | 2010

Electronic structure of ScN: Jet-cooled laser-induced fluorescence spectroscopy

S.G. Nakhate; Sheo Mukund

Journal of Quantitative Spectroscopy & Radiative Transfer | 2010

Radiative lifetime measurements in neutral zirconium using time-resolved laser induced fluorescence in supersonic free-jet

S.G. Nakhate; Sheo Mukund; Soumen Bhattacharyya

Chemical Physics Letters | 2012

Jet-cooled laser-induced fluorescence spectroscopy of LaH: Observation of new excited electronic states

Suresh Yarlagadda; Sheo Mukund; S.G. Nakhate

Chemical Physics Letters | 2011

Jet-cooled laser-induced dispersed fluorescence spectroscopy of ScN: Observation of a3Σ+ state

Sheo Mukund; S.G. Nakhate

Chemical Physics Letters | 2017

Laser-induced fluorescence spectroscopy of jet-cooled TiC: Observation of low-lying 1Σ+ states

S.G. Nakhate; Sheo Mukund; Soumen Bhattacharyya

Chemical Physics Letters | 2016

Jet-cooled laser-induced dispersed fluorescence spectroscopy of TaN: Observation of a3Δ and A1Δ states

Sheo Mukund; Soumen Bhattacharyya; S.G. Nakhate

Journal of Quantitative Spectroscopy & Radiative Transfer | 2012

Jet-cooled laser-induced fluorescence spectroscopy of B2Σ+–X2Σ+ system of scandium monoxide: Improved molecular constants at equilibrium

Sheo Mukund; Suresh Yarlagadda; Soumen Bhattacharyya; S.G. Nakhate

Journal of Quantitative Spectroscopy & Radiative Transfer | 2015

Free-jet laser-induced fluorescence spectroscopy of NbN: Observation of a new 3Π state

Sheo Mukund; Soumen Bhattacharyya; S.G. Nakhate

Chemical Physics Letters | 2017

Laser-induced fluorescence spectroscopy of TaN in free-jet: Observation of high-lying excited electronic states

S.G. Nakhate; Sheo Mukund; Soumen Bhattacharyya

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