Far- and mid-infrared emission spectroscopy of LiH and LiD

M  Dulick; K Q  Zhang; B  Guo; P F  Bernath

Far- and mid-infrared emission spectroscopy of LiH and LiD

M Dulick, K Q Zhang, B Guo, P F Bernath

Chemistry

Research output: Contribution to journal › Article › peer-review

Abstract

High-resolution Fourier transform spectra of LiH and LiD were recorded in the far-infrared region, 100-360 cm(-1), and the mid-infrared regions, 800-1200 cm(-1) and 2000-3000 cm(-1). A total of 261 pure rotational lines and 678 rovibrational lines were measured for the isotopomers (LiH)-Li-6(D) and (LiH)-Li-7(D). Molecular constants for the X-1 Sigma(+) ground state in the form of mass-dependent Dunham Y-ij's and mass-independent Dunham U-ij's were determined from a data set of 1476 lines, consisting of our measured line positions and previously reported microwave, millimeterwave, and infrared lines. An effective internuclear potential for the ground electronic state where the Born-Oppenheimer part is modeled as a parameterized modified-Morse function was also determined from a fit of the data. (C) 1998 Academic Press.

Original language	English
Pages (from-to)	14-26
Number of pages	13
Journal	JOURNAL OF MOLECULAR SPECTROSCOPY
Volume	188
Issue number	1
Publication status	Published - Mar 1998

Keywords

LITHIUM HYDRIDE
ADIABATIC CORRECTIONS
MOLECULAR-CONSTANTS
DUNHAM COEFFICIENTS
DIATOMIC-MOLECULES
ISOTOPE DEPENDENCE
ELECTRONIC-STATE
SPECTRA
CURVES
CL

Cite this

@article{7c60865fc3ce494d931fea4e7429b0f6,

title = "Far- and mid-infrared emission spectroscopy of LiH and LiD",

abstract = "High-resolution Fourier transform spectra of LiH and LiD were recorded in the far-infrared region, 100-360 cm(-1), and the mid-infrared regions, 800-1200 cm(-1) and 2000-3000 cm(-1). A total of 261 pure rotational lines and 678 rovibrational lines were measured for the isotopomers (LiH)-Li-6(D) and (LiH)-Li-7(D). Molecular constants for the X-1 Sigma(+) ground state in the form of mass-dependent Dunham Y-ij's and mass-independent Dunham U-ij's were determined from a data set of 1476 lines, consisting of our measured line positions and previously reported microwave, millimeterwave, and infrared lines. An effective internuclear potential for the ground electronic state where the Born-Oppenheimer part is modeled as a parameterized modified-Morse function was also determined from a fit of the data. (C) 1998 Academic Press.",

keywords = "LITHIUM HYDRIDE, ADIABATIC CORRECTIONS, MOLECULAR-CONSTANTS, DUNHAM COEFFICIENTS, DIATOMIC-MOLECULES, ISOTOPE DEPENDENCE, ELECTRONIC-STATE, SPECTRA, CURVES, CL",

author = "M Dulick and Zhang, {K Q} and B Guo and Bernath, {P F}",

year = "1998",

month = mar,

language = "English",

volume = "188",

pages = "14--26",

journal = "JOURNAL OF MOLECULAR SPECTROSCOPY",

issn = "0022-2852",

publisher = "Academic Press",

number = "1",

}

TY - JOUR

T1 - Far- and mid-infrared emission spectroscopy of LiH and LiD

AU - Dulick, M

AU - Zhang, K Q

AU - Guo, B

AU - Bernath, P F

PY - 1998/3

Y1 - 1998/3

N2 - High-resolution Fourier transform spectra of LiH and LiD were recorded in the far-infrared region, 100-360 cm(-1), and the mid-infrared regions, 800-1200 cm(-1) and 2000-3000 cm(-1). A total of 261 pure rotational lines and 678 rovibrational lines were measured for the isotopomers (LiH)-Li-6(D) and (LiH)-Li-7(D). Molecular constants for the X-1 Sigma(+) ground state in the form of mass-dependent Dunham Y-ij's and mass-independent Dunham U-ij's were determined from a data set of 1476 lines, consisting of our measured line positions and previously reported microwave, millimeterwave, and infrared lines. An effective internuclear potential for the ground electronic state where the Born-Oppenheimer part is modeled as a parameterized modified-Morse function was also determined from a fit of the data. (C) 1998 Academic Press.

AB - High-resolution Fourier transform spectra of LiH and LiD were recorded in the far-infrared region, 100-360 cm(-1), and the mid-infrared regions, 800-1200 cm(-1) and 2000-3000 cm(-1). A total of 261 pure rotational lines and 678 rovibrational lines were measured for the isotopomers (LiH)-Li-6(D) and (LiH)-Li-7(D). Molecular constants for the X-1 Sigma(+) ground state in the form of mass-dependent Dunham Y-ij's and mass-independent Dunham U-ij's were determined from a data set of 1476 lines, consisting of our measured line positions and previously reported microwave, millimeterwave, and infrared lines. An effective internuclear potential for the ground electronic state where the Born-Oppenheimer part is modeled as a parameterized modified-Morse function was also determined from a fit of the data. (C) 1998 Academic Press.

KW - LITHIUM HYDRIDE

KW - ADIABATIC CORRECTIONS

KW - MOLECULAR-CONSTANTS

KW - DUNHAM COEFFICIENTS

KW - DIATOMIC-MOLECULES

KW - ISOTOPE DEPENDENCE

KW - ELECTRONIC-STATE

KW - SPECTRA

KW - CURVES

KW - CL

M3 - Article

SN - 0022-2852

VL - 188

SP - 14

EP - 26

JO - JOURNAL OF MOLECULAR SPECTROSCOPY

JF - JOURNAL OF MOLECULAR SPECTROSCOPY

IS - 1

ER -