TY - JOUR

T1 - A statistical analysis of the wave numbers of triplet rovibronic transitions of the D2 molecule

T2 - II. An experimental study of "dubious" lines

AU - Lavrov, B. P.

AU - Umrikhin, I. S.

PY - 2009/6/1

Y1 - 2009/6/1

N2 - The spectral lines whose identification and wave numbers were acknowledged to be dubious in a statistical analysis of all the experimental data on the triplet rovibronic transitions of the D2 molecule published by now were studied. The capillary-arc discharge spectrum in a D2-H 2 (9: 1) mixture was measured at p ≈ 6 torr and current density j ≈ 10 A/cm2. The wave numbers of 123 lines (of a total of 138 dubious lines) situated in the spectral region accessible to us (430-730 nm) were determined. The error in wave numbers was ≈ 0.06 cm-1 because of the low intensity of the lines under study and overlap of their contours resulting from fortuitous superpositions of closely lying lines of other band systems (the so-called blending effect). The new wave number values were substantially different from the literature data. These differences were largely caused by random counting and blending errors and, in four instances, erroneous identification of lines in previous works.

AB - The spectral lines whose identification and wave numbers were acknowledged to be dubious in a statistical analysis of all the experimental data on the triplet rovibronic transitions of the D2 molecule published by now were studied. The capillary-arc discharge spectrum in a D2-H 2 (9: 1) mixture was measured at p ≈ 6 torr and current density j ≈ 10 A/cm2. The wave numbers of 123 lines (of a total of 138 dubious lines) situated in the spectral region accessible to us (430-730 nm) were determined. The error in wave numbers was ≈ 0.06 cm-1 because of the low intensity of the lines under study and overlap of their contours resulting from fortuitous superpositions of closely lying lines of other band systems (the so-called blending effect). The new wave number values were substantially different from the literature data. These differences were largely caused by random counting and blending errors and, in four instances, erroneous identification of lines in previous works.

UR - http://www.scopus.com/inward/record.url?scp=68249149515&partnerID=8YFLogxK

U2 - 10.1134/S1990793109030099

DO - 10.1134/S1990793109030099

M3 - Article

AN - SCOPUS:68249149515

VL - 3

SP - 397

EP - 403

JO - Russian Journal of Physical Chemistry B

JF - Russian Journal of Physical Chemistry B

SN - 1990-7931

IS - 3

ER -