Long-wavelength transitions and improved energy levels of triply ionized zirconium (Zr iv)

Joseph Reader; Nicolo Acquista

doi:10.1364/JOSAB.14.001328

Long-wavelength transitions and improved energy levels of triply ionized zirconium (Zr iv)

Joseph Reader and Nicolo Acquista

Journal of the Optical Society of America B
Vol. 14,
Issue 6,
pp. 1328-1330
(1997)
•https://doi.org/10.1364/JOSAB.14.001328

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Joseph Reader and Nicolo Acquista, "Long-wavelength transitions and improved energy levels of triply ionized zirconium (Zr iv)," J. Opt. Soc. Am. B 14, 1328-1330 (1997)

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History
- Original Manuscript: September 27, 1996
- Revised Manuscript: January 9, 1997
- Published: June 1, 1997

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Abstract

Fourteen new spectral lines of Zr iv lying between 3200 and 4600 Å were observed with a sliding spark discharge and a 10.7-m normal-incidence spectrograph. The lines were classified as transitions between highly excited energy levels of this ion. The measured wavelengths provide improved values for the known energy levels as well as a value for the previously unknown $6 h^{2} H$ term. Wavelengths with standard uncertainties varying from $\pm 0.0005$ to $\pm 0.0018$ Å were determined from the optimized level values for a group of lines between 445 and 1291 Å. An improved ionization energy was determined as $277 602.8 \pm 0.5 {cm}^{- 1}$ $(34.41837$ $\pm 0.00006 eV) .$

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λ (Å)a	Intensity	σ $({cm}^{- 1})$	Classification
3298.815	500	30313.916	$6 p^{2} P_{1 / 2} - 7 s^{2} S_{1 / 2}$
3411.964	1000	29308.633	$6 p^{2} P_{3 / 2} - 7 s^{2} S_{1 / 2}$
3577.129	2000	27955.380	$6 p^{2} P_{1 / 2} - 6 d^{2} D_{3 / 2}$
3654.207	500	27365.718	$5 f^{2} F_{5 / 2} - 6 g^{2} G_{7 / 2}$
3660.667	600	27317.426	$5 f^{2} F_{7 / 2} - 6 g^{2} G_{9 / 2}$
3687.955	3000	27115.298	$6 p^{2} P_{3 / 2} - 6 d^{2} D_{5 / 2}$
3710.574	500	26950.008	$6 p^{2} P_{3 / 2} - 6 d^{2} D_{3 / 2}$
3751.667	600	26654.818	$6 d^{2} D_{3 / 2} - 6 f^{2} F_{5 / 2}$
3765.389	800	26557.681	$6 d^{2} D_{5 / 2} - 6 f^{2} F_{7 / 2}$
3775.087	20	26489.456	$6 d^{2} D_{5 / 2} - 6 f^{2} F_{5 / 2}$
4138.602	500	24162.749	$5 d^{2} D_{3 / 2} - 6 p^{2} P_{3 / 2}$
4199.448	3000	23812.653	$5 d^{2} D_{5 / 2} - 6 p^{2} P_{3 / 2}$
4318.295	2000	23157.288	$5 d^{2} D_{3 / 2} - 6 p^{2} P_{1 / 2}$
4570.528	1800	21879.310	$5 g^{2} G - 6 h^{2} H$

Term	$J$	$E$ $({cm}^{- 1})$	Uncertainty	$n^{*}$	Fine-Structure Interval $({cm}^{- 1})$
$4 d^{2} D$	3/2	0.0	0.2	2.51492	1250.7 ± 0.3
	5/2	1 250.7	0.4	2.52060
$5 s^{2} S$	1/2	38 258.35	0.10	2.70847
$5 p^{2} P$	1/2	81 976.50	0.11	2.99586	2484.85 ± 0.10
	3/2	84 461.35	0.10	3.01507
$5 d^{2} D$	3/2	146 652.40	0.03	3.66170	350.06 ± 0.04
	5/2	147 002.46	0.03	3.66660
$6 s^{2} S$	1/2	152 513.0	0.2	3.74649
$4 f^{2} F$	5/2	159 066.75	0.07	3.84867	20.16 ± 0.05
	7/2	159 086.91	0.07	3.84900
$6 p^{2} P$	1/2	169 809.71	0.04	4.03590	1005.40 ± 0.05
	3/2	170 815.11	0.03	4.05485
$6 d^{2} D$	3/2	197 765.10	0.03	4.68956	165.33 ± 0.04
	5/2	197 930.43	0.03	4.69442
$7 s^{2} S$	1/2	200 123.69	0.06	4.76040
$5 f^{2} F$	5/2	201 114.14	0.06	4.79112	48.51 ± 0.10
	7/2	201 162.65	0.06	4.79264
$5 g^{2} G$	7/2	206 864.42	0.13	4.98205	0.26 ± 0.10
	9/2	206 864.68	0.13	4.98206
$7 p^{2} P$	1/2	208 783.36	0.19	5.05103	514.30 ± 0.16
	3/2	209 297.66	0.14	5.07001
$6 f^{2} F$	5/2	224 419.90	0.03	5.74579	68.21 ± 0.05
	7/2	224 488.11	0.04	5.74948
$8 s^{2} S$	1/2	224 813.48	0.11	5.76717
$6 g^{2} G$	7/2	228 479.86	0.07	5.97852	0.22 ± 0.10
	9/2	228 480.08	0.07	5.97853
$6 h^{2} H$	9/2, 11/2	228 743.87	0.13	5.99465
$7 g^{2} G$	7/2	241 526.36	0.10	6.97628	0.16 ± 0.12
	9/2	241 526.52	0.10	6.97630
$8 g^{2} G$	7/2	249 995.33	0.13	7.97485	0.11 ± 0.12
	9/2	249 995.44	0.13	7.97487
$9 g^{2} G$	7/2	255 800.2	0.5	8.9739	1.3 + 1.0
	9/2	255 801.5	0.9	8.9742
Limit		277 602.8	0.5

Transition	Intensitya	λ (Å)	Uncertainty (Å)
$4 d^{2} D_{3 / 2} - 6 f^{2} F_{5 / 2}$	1 p	445.5933	0.0005
$4 d^{2} D_{5 / 2} - 6 f^{2} F_{7 / 2}$	1	447.9535	0.0007
$4 d^{2} D_{3 / 2} - 7 p^{2} P_{1 / 2}$	1	478.9654	0.0007
$4 d^{2} D_{5 / 2} - 7 p^{2} P_{3 / 2}$	2	480.6606	0.0009
$4 d^{2} D_{3 / 2} - 5 f^{2} F_{5 / 2}$	70	497.2301	0.0006
$4 d^{2} D_{5 / 2} - 5 f^{2} F_{7 / 2}$	90	500.2201	0.0009
$4 d^{2} D_{5 / 2} - 5 f^{2} F_{5 / 2}$	1	500.3415	0.0009
$5 s^{2} S_{1 / 2} - 7 p^{2} P_{3 / 2}$	8	584.6609	0.0006
$4 d^{2} D_{3 / 2} - 6 p^{2} P_{3 / 2}$	20	585.4283	0.0008
$5 s^{2} S_{1 / 2} - 7 p^{2} P_{1 / 2}$	5	586.4243	0.0008
$4 d^{2} D_{3 / 2} - 6 p^{2} P_{1 / 2}$	200	588.8945	0.0008
$4 d^{2} D_{5 / 2} - 6 p^{2} P_{3 / 2}$	300	589.7462	0.0013
$4 d^{2} D_{3 / 2} - 4 f^{2} F_{5 / 2}$	1200	628.6669	0.0010
$4 d^{2} D_{5 / 2} - 4 f^{2} F_{7 / 2}$	1500	633.5680	0.0015
$4 d^{2} D_{5 / 2} - 4 f^{2} F_{5 / 2}$	300	633.6490	0.0015
$5 p^{2} P_{3 / 2} - 8 s^{2} S_{1 / 2}$	10	712.4936	0.0008
$5 s^{2} S_{1 / 2} - 6 p^{2} P_{3 / 2}$	200	754.3938	0.0006
$5 s^{2} S_{1 / 2} - 6 p^{2} P_{1 / 2}$	100	760.1594	0.0006
$5 p^{2} P_{1 / 2} - 7 s^{2} S_{1 / 2}$	150	846.4018	0.0009
$5 p^{2} P_{1 / 2} - 6 d^{2} D_{3 / 2}$	150	863.6429	0.0009
$5 p^{2} P_{3 / 2} - 7 s^{2} S_{1 / 2}$	150	864.5856	0.0009
$5 p^{2} P_{3 / 2} - 6 d^{2} D_{5 / 2}$	300	881.2974	0.0008
$5 p^{2} P_{3 / 2} - 6 d^{2} D_{3 / 2}$	20	882.5833	0.0008
$4 f^{2} F_{5 / 2} - 8 g^{2} G_{7 / 2}$	20 h	1099.7642	0.0018
$4 f^{2} F_{7 / 2} - 8 g^{2} G_{9 / 2}$	30 h	1100.0068	0.0018
$4 f^{2} F_{5 / 2} - 7 g^{2} G_{7 / 2}$	200 h	1212.7149	0.0017
$4 f^{2} F_{7 / 2} - 7 g^{2} G_{9 / 2}$	250 h	1213.0092	0.0018
$5 d^{2} D_{3 / 2} - 6 f^{2} F_{5 / 2}$	2500	1285.8843	0.0008
$5 d^{2} D_{5 / 2} - 6 f^{2} F_{7 / 2}$	3000	1290.5616	0.0010
$5 d^{2} D_{5 / 2} - 6 f^{2} F_{5 / 2}$	60	1291.6986	0.0008

λ (Å)a	Intensity	σ $({cm}^{- 1})$	Classification
3298.815	500	30313.916	$6 p^{2} P_{1 / 2} - 7 s^{2} S_{1 / 2}$
3411.964	1000	29308.633	$6 p^{2} P_{3 / 2} - 7 s^{2} S_{1 / 2}$
3577.129	2000	27955.380	$6 p^{2} P_{1 / 2} - 6 d^{2} D_{3 / 2}$
3654.207	500	27365.718	$5 f^{2} F_{5 / 2} - 6 g^{2} G_{7 / 2}$
3660.667	600	27317.426	$5 f^{2} F_{7 / 2} - 6 g^{2} G_{9 / 2}$
3687.955	3000	27115.298	$6 p^{2} P_{3 / 2} - 6 d^{2} D_{5 / 2}$
3710.574	500	26950.008	$6 p^{2} P_{3 / 2} - 6 d^{2} D_{3 / 2}$
3751.667	600	26654.818	$6 d^{2} D_{3 / 2} - 6 f^{2} F_{5 / 2}$
3765.389	800	26557.681	$6 d^{2} D_{5 / 2} - 6 f^{2} F_{7 / 2}$
3775.087	20	26489.456	$6 d^{2} D_{5 / 2} - 6 f^{2} F_{5 / 2}$
4138.602	500	24162.749	$5 d^{2} D_{3 / 2} - 6 p^{2} P_{3 / 2}$
4199.448	3000	23812.653	$5 d^{2} D_{5 / 2} - 6 p^{2} P_{3 / 2}$
4318.295	2000	23157.288	$5 d^{2} D_{3 / 2} - 6 p^{2} P_{1 / 2}$
4570.528	1800	21879.310	$5 g^{2} G - 6 h^{2} H$

Term	$J$	$E$ $({cm}^{- 1})$	Uncertainty	$n^{*}$	Fine-Structure Interval $({cm}^{- 1})$
$4 d^{2} D$	3/2	0.0	0.2	2.51492	1250.7 ± 0.3
	5/2	1 250.7	0.4	2.52060
$5 s^{2} S$	1/2	38 258.35	0.10	2.70847
$5 p^{2} P$	1/2	81 976.50	0.11	2.99586	2484.85 ± 0.10
	3/2	84 461.35	0.10	3.01507
$5 d^{2} D$	3/2	146 652.40	0.03	3.66170	350.06 ± 0.04
	5/2	147 002.46	0.03	3.66660
$6 s^{2} S$	1/2	152 513.0	0.2	3.74649
$4 f^{2} F$	5/2	159 066.75	0.07	3.84867	20.16 ± 0.05
	7/2	159 086.91	0.07	3.84900
$6 p^{2} P$	1/2	169 809.71	0.04	4.03590	1005.40 ± 0.05
	3/2	170 815.11	0.03	4.05485
$6 d^{2} D$	3/2	197 765.10	0.03	4.68956	165.33 ± 0.04
	5/2	197 930.43	0.03	4.69442
$7 s^{2} S$	1/2	200 123.69	0.06	4.76040
$5 f^{2} F$	5/2	201 114.14	0.06	4.79112	48.51 ± 0.10
	7/2	201 162.65	0.06	4.79264
$5 g^{2} G$	7/2	206 864.42	0.13	4.98205	0.26 ± 0.10
	9/2	206 864.68	0.13	4.98206
$7 p^{2} P$	1/2	208 783.36	0.19	5.05103	514.30 ± 0.16
	3/2	209 297.66	0.14	5.07001
$6 f^{2} F$	5/2	224 419.90	0.03	5.74579	68.21 ± 0.05
	7/2	224 488.11	0.04	5.74948
$8 s^{2} S$	1/2	224 813.48	0.11	5.76717
$6 g^{2} G$	7/2	228 479.86	0.07	5.97852	0.22 ± 0.10
	9/2	228 480.08	0.07	5.97853
$6 h^{2} H$	9/2, 11/2	228 743.87	0.13	5.99465
$7 g^{2} G$	7/2	241 526.36	0.10	6.97628	0.16 ± 0.12
	9/2	241 526.52	0.10	6.97630
$8 g^{2} G$	7/2	249 995.33	0.13	7.97485	0.11 ± 0.12
	9/2	249 995.44	0.13	7.97487
$9 g^{2} G$	7/2	255 800.2	0.5	8.9739	1.3 + 1.0
	9/2	255 801.5	0.9	8.9742
Limit		277 602.8	0.5

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