INFRARED AND MICROWAVE-SPECTRA OF SRO AND BAO

被引:29
作者
BLOM, CE
HEDDERICH, HG
LOVAS, FJ
SUENRAM, RD
MAKI, AG
机构
[1] UNIV WASHINGTON,DEPT CHEM,SEATTLE,WA 98195
[2] UNIV GIESSEN,INST PHYS CHEM,W-6300 GIESSEN,GERMANY
[3] NATL INST STAND & TECHNOL,DIV MOLEC PHYS,GAITHERSBURG,MD 20899
关键词
D O I
10.1016/0022-2852(92)90121-4
中图分类号
O64 [物理化学(理论化学)、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号
070203 ; 070304 ; 081704 ; 1406 ;
摘要
The high-resolution infrared spectrum of strontium oxide has been observed in a low-pressure flame. A total of 43 Δv = 1 transitions has been measured for the three most abundant isotopomers of SrO. New microwave measurements have also been made for SrO and BaO using a laser ablation technique. The measurements were combined in a least-squares fit with other data taken from the literature to obtain a set of Dunham potential constants and Dunham rovibrational coefficients. The accurate values obtained for the first terms in the Dunham potential function enabled us to calculate several higher-order rovibrational constants that could not be determined from a direct fit to the experimental data. Constants, determined in a parallel fashion, are given for SrO, BaO, CaO, and MgO. The nuclear quadrupole coupling constants have been determined for 87SrO, v = 0, 1, and 2, and for v = 0 of 135BaO and 137BaO. © 1992.
引用
收藏
页码:109 / 118
页数:10
相关论文
共 33 条
[1]   LASER-INDUCED FLUORESCENCE AND MICROWAVE-OPTICAL DOUBLE-RESONANCE STUDY OF THE B1-SIGMA+-X1-SIGMA+ SYSTEM OF MAGNESIUM MONOXIDE [J].
AZUMA, Y ;
DYKE, TR ;
GERKE, GK ;
STEIMLE, TC .
JOURNAL OF MOLECULAR SPECTROSCOPY, 1984, 108 (01) :137-142
[2]   THE INFRARED-SPECTRUM OF CALCIUM-OXIDE IN THE GAS-PHASE [J].
BLOM, CE ;
HEDDERICH, HG .
CHEMICAL PHYSICS LETTERS, 1988, 145 (02) :143-145
[4]   NUCLEAR MASS DEPENDENCE OF DUNHAM COEFFICIENTS AND BREAKDOWN OF BORN-OPPENHEIMER APPROXIMATION [J].
BUNKER, PR .
JOURNAL OF MOLECULAR SPECTROSCOPY, 1977, 68 (03) :367-371
[5]   THE INFRARED-SPECTRUM OF MAGNESIUM-OXIDE - A DIODE-LASER STUDY USING THE DISCHARGE-ENHANCED REACTION BETWEEN HOT MAGNESIUM VAPOR AND N2O [J].
CIVIS, S ;
HEDDERICH, HG ;
BLOM, CE .
CHEMICAL PHYSICS LETTERS, 1991, 176 (05) :489-494
[6]  
Cohen E. R., 1973, Journal of Physical and Chemical Reference Data, V2, P663, DOI 10.1063/1.3253130
[7]   MILLIMETER WAVE SPECTRUM OF CAO [J].
CRESWELL, RA ;
HOCKING, WH ;
PEARSON, EF .
CHEMICAL PHYSICS LETTERS, 1977, 48 (02) :369-371
[8]   The energy levels of a rotating vibrator [J].
Dunham, JL .
PHYSICAL REVIEW, 1932, 41 (06) :721-731
[9]  
Guelachvili G., 1986, HDB INFRARED STANDAR
[10]   THE INFRARED-SPECTRUM OF BARIUM OXIDE IN THE GAS-PHASE [J].
HEDDERICH, HG ;
BLOM, CE .
JOURNAL OF MOLECULAR SPECTROSCOPY, 1990, 140 (01) :103-111