Infrared emission spectra of BeH and BeD

A  Shayesteh; K  Tereszchuk; P F  Bernath; R  Colin

doi:10.1063/1.1528606

Infrared emission spectra of BeH and BeD

A Shayesteh, K Tereszchuk, P F Bernath, R Colin

Chemistry

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

Abstract

High resolution infrared emission spectra of beryllium monohydride and monodeuteride have been recorded. The molecules were generated in a furnace-discharge source, at 1500 degreesC and 333 mA discharge current, with beryllium metal and a mixture of helium and hydrogen or deuterium gases. Approximately 160 BeH lines and 167 BeD lines for the vibrational bands v=1-->0 to v=4-->3 were observed in the spectra and spectroscopic constants were determined. The Dunham constants (Y-l,Y-m) and Born-Oppenheimer breakdown constants were obtained in a combined fit of the BeH and BeD data. The equilibrium rotational constants (B-e) for BeH and BeD were found to be 10.319 59(3) cm(-1) and 5.688 29(2) cm(-1), respectively, while the equilibrium vibrational constants (omega(e)) are 2061.416(3) and 1529.956(3) cm(-1). The equilibrium distance (R-e) was determined to be 1.342 436(2) Angstrom for BeH. (C) 2003 American Institute of Physics.

Original language	English
Pages (from-to)	1158-1161
Number of pages	4
Journal	Journal of Chemical Physics
Volume	118
Issue number	3
DOIs	https://doi.org/10.1063/1.1528606
Publication status	Published - 15 Jan 2003

Keywords

RYDBERG STATES
BAND SYSTEMS
MOLECULE
HYDRIDES

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10.1063/1.1528606

Cite this

@article{07ca553f43fd44729a2fd459ee15cbf3,

title = "Infrared emission spectra of BeH and BeD",

abstract = "High resolution infrared emission spectra of beryllium monohydride and monodeuteride have been recorded. The molecules were generated in a furnace-discharge source, at 1500 degreesC and 333 mA discharge current, with beryllium metal and a mixture of helium and hydrogen or deuterium gases. Approximately 160 BeH lines and 167 BeD lines for the vibrational bands v=1-->0 to v=4-->3 were observed in the spectra and spectroscopic constants were determined. The Dunham constants (Y-l,Y-m) and Born-Oppenheimer breakdown constants were obtained in a combined fit of the BeH and BeD data. The equilibrium rotational constants (B-e) for BeH and BeD were found to be 10.319 59(3) cm(-1) and 5.688 29(2) cm(-1), respectively, while the equilibrium vibrational constants (omega(e)) are 2061.416(3) and 1529.956(3) cm(-1). The equilibrium distance (R-e) was determined to be 1.342 436(2) Angstrom for BeH. (C) 2003 American Institute of Physics.",

keywords = "RYDBERG STATES, BAND SYSTEMS, MOLECULE, HYDRIDES",

author = "A Shayesteh and K Tereszchuk and Bernath, {P F} and R Colin",

year = "2003",

month = jan,

day = "15",

doi = "10.1063/1.1528606",

language = "English",

volume = "118",

pages = "1158--1161",

journal = "Journal of Chemical Physics",

issn = "0021-9606",

publisher = "American Institute of Physics",

number = "3",

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TY - JOUR

T1 - Infrared emission spectra of BeH and BeD

AU - Shayesteh, A

AU - Tereszchuk, K

AU - Bernath, P F

AU - Colin, R

PY - 2003/1/15

Y1 - 2003/1/15

N2 - High resolution infrared emission spectra of beryllium monohydride and monodeuteride have been recorded. The molecules were generated in a furnace-discharge source, at 1500 degreesC and 333 mA discharge current, with beryllium metal and a mixture of helium and hydrogen or deuterium gases. Approximately 160 BeH lines and 167 BeD lines for the vibrational bands v=1-->0 to v=4-->3 were observed in the spectra and spectroscopic constants were determined. The Dunham constants (Y-l,Y-m) and Born-Oppenheimer breakdown constants were obtained in a combined fit of the BeH and BeD data. The equilibrium rotational constants (B-e) for BeH and BeD were found to be 10.319 59(3) cm(-1) and 5.688 29(2) cm(-1), respectively, while the equilibrium vibrational constants (omega(e)) are 2061.416(3) and 1529.956(3) cm(-1). The equilibrium distance (R-e) was determined to be 1.342 436(2) Angstrom for BeH. (C) 2003 American Institute of Physics.

AB - High resolution infrared emission spectra of beryllium monohydride and monodeuteride have been recorded. The molecules were generated in a furnace-discharge source, at 1500 degreesC and 333 mA discharge current, with beryllium metal and a mixture of helium and hydrogen or deuterium gases. Approximately 160 BeH lines and 167 BeD lines for the vibrational bands v=1-->0 to v=4-->3 were observed in the spectra and spectroscopic constants were determined. The Dunham constants (Y-l,Y-m) and Born-Oppenheimer breakdown constants were obtained in a combined fit of the BeH and BeD data. The equilibrium rotational constants (B-e) for BeH and BeD were found to be 10.319 59(3) cm(-1) and 5.688 29(2) cm(-1), respectively, while the equilibrium vibrational constants (omega(e)) are 2061.416(3) and 1529.956(3) cm(-1). The equilibrium distance (R-e) was determined to be 1.342 436(2) Angstrom for BeH. (C) 2003 American Institute of Physics.

KW - RYDBERG STATES

KW - BAND SYSTEMS

KW - MOLECULE

KW - HYDRIDES

U2 - 10.1063/1.1528606

DO - 10.1063/1.1528606

M3 - Article

SN - 0021-9606

VL - 118

SP - 1158

EP - 1161

JO - Journal of Chemical Physics

JF - Journal of Chemical Physics

IS - 3

ER -