Fourier transform infrared emission spectroscopy of new systems of NiS

TY - JOUR

T1 - Fourier transform infrared emission spectroscopy of new systems of NiS

AU - Ram, R. S.

AU - Yu, S.

AU - Gordon, I.

AU - Bernath, P. F.

PY - 2009/11

Y1 - 2009/11

N2 - The emission spectrum of NiS has been investigated in the near infrared in the 2000-7500 cm(-1) region using a Fourier transform spectrometer. New bands observed in the 3000-5000 cm(-1) region have been assigned to a (3)Pi(i)-X-3 Sigma(-) transition analogous to the transition of NiO observed in the near infrared [R.S. Ram and P.F. Bernath, J. Mol. Spectrosc. 155 (1992) 315-325]. The 0-0 band of NiS consists of (3)Pi(0+)-X-3 Sigma(-)(1) (4399 cm(-1)), (3)Pi(0-)-X-3 Sigma(-) (4257 cm(-1)), (3)Pi(1)-X-3 Sigma(-)(0+) (3938 cm(-1)), and (3)Pi(2)-X-3 Sigma(-)(1) (3325 cm(-1)) sub-bands. To higher wavenumbers, another [Omega = 1] - X-3 Sigma(-)(0+) transition has been observed with a 0-0 R head near 5887 cm(-1). This transition has been assigned as (1)Pi-X-3 Sigma(-)(0+), although a (3)Pi(1)-X-3 Sigma(-)(0+) assignment is also possible. Several vibrational bands belonging to different sub-bands were rotationally analyzed and spectroscopic constants evaluated. Our spectroscopic constants for the ground state agree well with the values reported in the microwave Study by Yamamoto et al. [T. Yamamoto, N. Tanimoto, T. Okabayashi. Phys. Chem. Chem. Phys. 9 (2007) 3744-3748]. (C) 2009 Elsevier Inc. All rights reserved.

AB - The emission spectrum of NiS has been investigated in the near infrared in the 2000-7500 cm(-1) region using a Fourier transform spectrometer. New bands observed in the 3000-5000 cm(-1) region have been assigned to a (3)Pi(i)-X-3 Sigma(-) transition analogous to the transition of NiO observed in the near infrared [R.S. Ram and P.F. Bernath, J. Mol. Spectrosc. 155 (1992) 315-325]. The 0-0 band of NiS consists of (3)Pi(0+)-X-3 Sigma(-)(1) (4399 cm(-1)), (3)Pi(0-)-X-3 Sigma(-) (4257 cm(-1)), (3)Pi(1)-X-3 Sigma(-)(0+) (3938 cm(-1)), and (3)Pi(2)-X-3 Sigma(-)(1) (3325 cm(-1)) sub-bands. To higher wavenumbers, another [Omega = 1] - X-3 Sigma(-)(0+) transition has been observed with a 0-0 R head near 5887 cm(-1). This transition has been assigned as (1)Pi-X-3 Sigma(-)(0+), although a (3)Pi(1)-X-3 Sigma(-)(0+) assignment is also possible. Several vibrational bands belonging to different sub-bands were rotationally analyzed and spectroscopic constants evaluated. Our spectroscopic constants for the ground state agree well with the values reported in the microwave Study by Yamamoto et al. [T. Yamamoto, N. Tanimoto, T. Okabayashi. Phys. Chem. Chem. Phys. 9 (2007) 3744-3748]. (C) 2009 Elsevier Inc. All rights reserved.

KW - Fourier transform emission spectroscopy

KW - Near infrared spectroscopy

KW - Rotational analysis

KW - Transition metal sulfides

KW - LASER-INDUCED FLUORESCENCE

KW - LOW-LYING STATES

KW - ROTATIONAL ANALYSIS

KW - EXCITED-STATES

KW - IDENTIFICATION

KW - TRANSITION

KW - NICL

KW - RESOLUTION

KW - SPECTRUM

KW - OXIDES

UR - http://www.scopus.com/inward/record.url?scp=70449529425&partnerID=8YFLogxK

U2 - 10.1016/j.jms.2009.08.013

DO - 10.1016/j.jms.2009.08.013

M3 - Article

SN - 0022-2852

VL - 258

SP - 20

EP - 25

JO - JOURNAL OF MOLECULAR SPECTROSCOPY

JF - JOURNAL OF MOLECULAR SPECTROSCOPY

IS - 1-2

ER -