In i isoelectronic sequence: wavelengths and energy levels for Xe vi through La ix

V. Kaufman; J. Sugar

doi:10.1364/JOSAB.4.001924

In i isoelectronic sequence: wavelengths and energy levels for Xe vi through La ix

V. Kaufman and J. Sugar

Journal of the Optical Society of America B
Vol. 4,
Issue 12,
pp. 1924-1926
(1987)
•https://doi.org/10.1364/JOSAB.4.001924

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V. Kaufman and J. Sugar, "In i isoelectronic sequence: wavelengths and energy levels for Xe vi through La ix," J. Opt. Soc. Am. B 4, 1924-1926 (1987)

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About this Article
History
- Original Manuscript: June 11, 1987
- Manuscript Accepted: August 17, 1987
- Published: December 1, 1987

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Abstract

Spectra of Xe, Cs, Ba, and La produced with a high-voltage spark discharge were observed photographically with the National Bureau of Standards 10.7-m normal- and grazing-incidence spectrographs. Identified lines of the In i isoelectronic sequence were used to determine the energy levels of the 5s²5p, 5s5p², 5s²5d, and 5s²6s configurations. Their interactions with unobserved configurations that include a 4f electron are discussed. Fitted values of the radial energy integrals were determined from the known levels.

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	Xe vi		Cs vii		Ba viii		La ix

Transition	λ(Å)	Int	λ(Å)	Int	λ(Å)	Int	λ(Å)	Int
5s² 5p–5s 5p²
²P_3/2–²D_5/2	880.043	500	782.455	150	703.302	50	637.490	35
²P_3/2–²D_3/2	915.163	5	825.875	2	759.854	2	–	–
²P_1/2–²D_3/2	800.832	250	711.961	50	644.257	10	591.963	10
²P_1/2–²S_1/2	702.264	200	629.688	50	570.057	35	520.308	30
²P_3/2–2S_1/2	632.930	25	561.194	3	–	–	–	–
²P_3/2–²P_1/2	792.149	20	720.931	30	–	–	–	–
²P_1/2–²P_1/2	705.035	250	632.551	100	572.144	50	522.704	20
²P_3/2–²P_3/2	696.801	250	625.160	60	566.159	100	516.883	40
²P_1/2–²P_3/2	628.489	150	557.593	15	499.395	3	450.990	10
5s² 5p–5s²5d
²P_3/2–²D_5/2	599.848	150	527.961	40	463.196	25
²P_3/2–²D_3/2	607.348	70	535 876	10	469.835	1
²P_1/2–²D_3/2	554.785	100	485.452	40	422.915	10
5s² 5p–5s²5d
²P_3/2–2S_1/2	481.054	40	393.761	35	330.306	25	283.286	25
²P_1/2–2S_1/2	447.473	15	365.841	20	306.406	5	262.282	15

Level	Xe vi	Cs vii	Ba viii	La ix
5s²5p²P_1/2	0.0	0.0	0.0	0
_3/2	15 599.1	19 381.6	23 613.9	28 269
5s5p^{2 2}D_3/2	124 869.9	140 457.1	155 217.8	168 929
_5/2	129 229.9	147 184.6	165 800.4	185134
²P_1/2	141 837.2	158 090.6	174 781.2	191 313
_3/2	159 112.0	179 341.4	200 242.5	221 735
²S_1/2	157 995.6	178 190.4	199 035.1	220 463
5s²5d²D_3/2	180 249.6	207 980.	236 454.4
_5/2	182 308.0	210 842.3	239 505.5
5s²6s²S_1/2	223 477.8	273 342.9	326 363.8	381 269

Config.	Parameter	Xe vi	Cs vii	Ba viii
5s5p²	E_av	129 480(120)	146 380(12)	163 950(500)
	F²(pp)	41 060(700)	43 390(60)	44 450(2900)
	G¹(sp)^a	44 795	47 995	51 056
	ζ₅_p	10 510(130)	13 187(12)	16 360(560)
5s²5d	E_av	172 820(230)	200 000(20)	226 400(1000)
	ζ₅_d	1 077(120)	1 458(11)	1 640(510)
5s5p²–5s²5d	R¹(pp, sd)	54 430(560)	64 000(60)	77 080(2700)

		Xe vi			Cs vii			Ba viii
5s5p²	⁴P_1/2	93	6	²S	91	7	²S	89	9	²S
	⁴P_3/2	98			98			97
	⁴P_5/2	82	17	²D	76	22	²D	68	29	²D
	²D_3/2	80	15	s²d²D	80	13	s²d²D	79	13	s²d²D
	²D_5/2	68	18	⁴p	64	24	⁴P	57	32	⁴P
	²P_1/2	63	33	²S	65	29	²S	66	27	²S
	²P_3/2	94	4	s²d²D	93	4	s²d²D	92	4	s²d²D
	²S_1/2	62	37	²P	63	34	²P	64	33	²P
5s²5d	²D_3/2	81	17	sp^{2 2}D	83	16	sp^{2 2}D	83	16	sp^{2 2}D
	²D_1/2	85	15	sp^{2 2}D	86	14	sp^{2 2}D	85	14	sp^{2 2}D

	Xe vi		Cs vii		Ba viii		La ix

Transition	λ(Å)	Int	λ(Å)	Int	λ(Å)	Int	λ(Å)	Int
5s² 5p–5s 5p²
²P_3/2–²D_5/2	880.043	500	782.455	150	703.302	50	637.490	35
²P_3/2–²D_3/2	915.163	5	825.875	2	759.854	2	–	–
²P_1/2–²D_3/2	800.832	250	711.961	50	644.257	10	591.963	10
²P_1/2–²S_1/2	702.264	200	629.688	50	570.057	35	520.308	30
²P_3/2–2S_1/2	632.930	25	561.194	3	–	–	–	–
²P_3/2–²P_1/2	792.149	20	720.931	30	–	–	–	–
²P_1/2–²P_1/2	705.035	250	632.551	100	572.144	50	522.704	20
²P_3/2–²P_3/2	696.801	250	625.160	60	566.159	100	516.883	40
²P_1/2–²P_3/2	628.489	150	557.593	15	499.395	3	450.990	10
5s² 5p–5s²5d
²P_3/2–²D_5/2	599.848	150	527.961	40	463.196	25
²P_3/2–²D_3/2	607.348	70	535 876	10	469.835	1
²P_1/2–²D_3/2	554.785	100	485.452	40	422.915	10
5s² 5p–5s²5d
²P_3/2–2S_1/2	481.054	40	393.761	35	330.306	25	283.286	25
²P_1/2–2S_1/2	447.473	15	365.841	20	306.406	5	262.282	15

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