A molecular beam optical/Stark study of calcium monomethyl

A. J. Marr; F. Grieman; Timothy Steimle

doi:10.1063/1.472265

A molecular beam optical/Stark study of calcium monomethyl

A. J. Marr, F. Grieman, Timothy Steimle

Molecular Sciences, School of (SMS)

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

27 Scopus citations

Abstract

Optical and optical Stark spectra of the 0₀⁰ Ã²E-X̃²A₁ band system of a supersonic molecular beam sample of calcium monomethyl, CaCH₃, have been recorded. Field free spectroscopic parameters were obtained on fitting the (|K_R′| = 1, |K′|=0 and 2)-(|K_R″| = 1) and the (|K_R′| = 0, |K′|=1)-(|K_RPrime;| = 0) subbands. The branch features were reassigned and a resulting new set of spectroscopic parameters determined. The value of the a-principal axis component of the spin-rotation parameter, ε_aa(Ã²E), is now consistent with the assumed nature of the low-lying excited electronic states, Dipole moments of 2.62±0.03 D and 1.69±0.02 D were determined for the X̃²A₁ and Ã²E states, respectively. A simple electrostatic model was adapted to predict dipole moments for CaCH₃ and MgCH₃.

Original language	English (US)
Pages (from-to)	3930-3937
Number of pages	8
Journal	Journal of Chemical Physics
Volume	105
Issue number	10
DOIs	https://doi.org/10.1063/1.472265
State	Published - Jan 1 1996

ASJC Scopus subject areas

Physics and Astronomy(all)
Physical and Theoretical Chemistry

Access to Document

10.1063/1.472265

Cite this

@article{2b2c2ec19089444f9e0a99d79e94de73,

title = "A molecular beam optical/Stark study of calcium monomethyl",

abstract = "Optical and optical Stark spectra of the 000 {\~A}2E-{\~X}2A1 band system of a supersonic molecular beam sample of calcium monomethyl, CaCH3, have been recorded. Field free spectroscopic parameters were obtained on fitting the (|KR′| = 1, |K′|=0 and 2)-(|KR″| = 1) and the (|KR′| = 0, |K′|=1)-(|KRPrime;| = 0) subbands. The branch features were reassigned and a resulting new set of spectroscopic parameters determined. The value of the a-principal axis component of the spin-rotation parameter, εaa({\~A}2E), is now consistent with the assumed nature of the low-lying excited electronic states, Dipole moments of 2.62±0.03 D and 1.69±0.02 D were determined for the {\~X}2A1 and {\~A}2E states, respectively. A simple electrostatic model was adapted to predict dipole moments for CaCH3 and MgCH3.",

author = "Marr, {A. J.} and F. Grieman and Timothy Steimle",

year = "1996",

month = jan,

day = "1",

doi = "10.1063/1.472265",

language = "English (US)",

volume = "105",

pages = "3930--3937",

journal = "Journal of Chemical Physics",

issn = "0021-9606",

publisher = "American Institute of Physics Publising LLC",

number = "10",

}

TY - JOUR

T1 - A molecular beam optical/Stark study of calcium monomethyl

AU - Marr, A. J.

AU - Grieman, F.

AU - Steimle, Timothy

PY - 1996/1/1

Y1 - 1996/1/1

N2 - Optical and optical Stark spectra of the 000 Ã2E-X̃2A1 band system of a supersonic molecular beam sample of calcium monomethyl, CaCH3, have been recorded. Field free spectroscopic parameters were obtained on fitting the (|KR′| = 1, |K′|=0 and 2)-(|KR″| = 1) and the (|KR′| = 0, |K′|=1)-(|KRPrime;| = 0) subbands. The branch features were reassigned and a resulting new set of spectroscopic parameters determined. The value of the a-principal axis component of the spin-rotation parameter, εaa(Ã2E), is now consistent with the assumed nature of the low-lying excited electronic states, Dipole moments of 2.62±0.03 D and 1.69±0.02 D were determined for the X̃2A1 and Ã2E states, respectively. A simple electrostatic model was adapted to predict dipole moments for CaCH3 and MgCH3.

AB - Optical and optical Stark spectra of the 000 Ã2E-X̃2A1 band system of a supersonic molecular beam sample of calcium monomethyl, CaCH3, have been recorded. Field free spectroscopic parameters were obtained on fitting the (|KR′| = 1, |K′|=0 and 2)-(|KR″| = 1) and the (|KR′| = 0, |K′|=1)-(|KRPrime;| = 0) subbands. The branch features were reassigned and a resulting new set of spectroscopic parameters determined. The value of the a-principal axis component of the spin-rotation parameter, εaa(Ã2E), is now consistent with the assumed nature of the low-lying excited electronic states, Dipole moments of 2.62±0.03 D and 1.69±0.02 D were determined for the X̃2A1 and Ã2E states, respectively. A simple electrostatic model was adapted to predict dipole moments for CaCH3 and MgCH3.

UR - http://www.scopus.com/inward/record.url?scp=0030575567&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0030575567&partnerID=8YFLogxK

U2 - 10.1063/1.472265

DO - 10.1063/1.472265

M3 - Article

AN - SCOPUS:0030575567

SN - 0021-9606

VL - 105

SP - 3930

EP - 3937

JO - Journal of Chemical Physics

JF - Journal of Chemical Physics

IS - 10

ER -

A molecular beam optical/Stark study of calcium monomethyl

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this