Band Spectra of the Two Isotopic Species of Yttrium Monochloride*

Gareth M. Janney

doi:10.1364/JOSA.56.001706

Journal of the Optical Society of America
Vol. 56,
Issue 12,
pp. 1706-1711
(1966)
•https://doi.org/10.1364/JOSA.56.001706

Band Spectra of the Two Isotopic Species of Yttrium Monochloride

Gareth M. Janney

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Gareth M. Janney, "Band Spectra of the Two Isotopic Species of Yttrium Monochloride*," J. Opt. Soc. Am. 56, 1706-1711 (1966)

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Abstract

Emission spectra of Y³⁵Cl and Y³⁷Cl were photographed in the wavelength region from 6300 to 6930 Å using electrodeless discharge lamps. The molecular constants of the two species of YCl were determined from vibrational analyses of the band systems and rotational analyses of the (0,0), (0,1), and (1,0) bands. The electronic transition to which the bands correspond is of the singlet Σ to singlet Σ type.

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Equations (5)

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	Y³⁵Cl	Y³⁷Cl
ω_e^′	324.5	317.9
ω_e^′	380.7	372.9
ω_e^′xe^′	1.14	1.07
ω_e^″x_e^″	1.3	1.2

	0	1	2	3	4
0	14879.5 ( 9.5)	14501.7 ( 1.4)
1	15201.8 ( 1.7)		14448.0 ( 8.1)
2	15521.5 ( 1.7)	15143.7 ( 3.6)		14393.8 ( 5.2)
3	15840.1 ( 39.3)	15461.5 ( 1.2)	15086.1 ( 5.7)
4		15776.8 ( 6.6)	15401.1 ( 1.1)
5			15714.2 ( 4.2)	15343.2 ( 1.3)
6				15652.0 ( 2.1)
7					15589.4 ( 90.4)

	0	1	2	3	4
0	14880.0 ( 0.0)	14509.6 ( 9.5)
1	15195.8 ( 5.8)		14457.1 ( 7.2)
2	15509.5 ( 9.4)	15139.9 ( 8.9)
3	15821.2 ( 0.9)	15450.6 ( 0.4)	15081.8 ( 2.3)
4		15759.4 ( 9.7)	15391.7 ( 1.6)
5			15699.0 ( 8.8)
6				15673.8 ( 8.2)
7					15576.6 ( 7.8)

J	Branch
J	R(J)	P(J)
	(0,0)
38	14875.37^*
39	75.04^*
40	74.40^*
41	74.27^*
42	73.86^*
43	73.44^*	14854.61^*
44	73.02^*	53.70
45	72.59^*	52.71
46	72.13^*	51.94
47	71.66^*	51.10
48	71.16^*	50.17
49	70.68^*	49.24
50	70.19^*	48.30
51	69.64^*	47.34
52	69.12^*	46.35
53	68.53^*	45.39
54	67.97^*	44.37
55	67.38^*	43.37
56	14866.78^*	14842.33
57	66.18^*	41.38
58	65.56^*	40.27
59	64.90^*	39.20
60	64.24^*	38.07
61	63.59^*	36.99
62	62.87^*	35.89
63	62.16^*	34.77
64	61.46^*	33.62
65	60.73^*	32.46
66	60.02^*	31.29
67	59.24^*	30.12
68	58.47^*	28.91
69	57.67^*	27.67
70	56.87^*	26.47
71	56.04	25.22
72	55.19	23.92
73	54.35^*	22.72
74	14853.50	14821.40
75	52.54	20.09
76	51.69	18.81
77	50.79	17.46
78	49.81	16.08
79	48.87	14.77
80	47.91	13.42
81	46.90	12.00
82	45.95	10.64
83	44.94	09.21^*
84	43.95	07.75^*
85	42.88	06.30^*
86	41.89	04.82^*
87	40.81	03.34^*
88	39.73	01.82^*
89	38.62	00.31^*
90	37.52	14798.80^*
91	36.41	97.21^*
92	35.29	95.66^*
93	34.10	94.09^*
94	32.95	92.51^*
95	14831.77	14791.03^*
96	30.57	89.27^*
97	29.37	87.60^*
98	28.12	85.96^*
99	26.87	84.31^*
100	25.62	82.67^*
101	24.35	81.05
102	23.10	79.32
103	21.78	77.60
104	20.44	75.87
105	19.13	74.13
106	17.78	72.37
107	16.43	70.57
108	15.02	68.80
109	13.65	66.99
110	12.21	65.14
111	10.74	63.31
112		61.47
113		59.59
114		57.72
115		55.81
116		14753.90
117		51.95
118		50.06
119		48.05
	(1,0)
36		15181.43
37		80.62
38		79.78
39		78.95
40		78.10
41		77.22
42		76.38
43		75.47
44		74.54
45		73.59
46		72.62
47		71.70
48		70.68
49		69.71
50		68.71
51		67.68
52		66.63
53		15165.57
54		64.48
55		63.32
56		62.24
57		61.12
58	15184.93	59.90^*
59	⋯	58.74
60	83.45	57.51^*
61	⋯	56.32^*
62	81.87	55.13^*
63	81.03	⋯
64	80.28	52.67^*
65	79.41	51.76^*
66	78.58	50.22^*
67	77.73	48.96^*
68	76.87	47.60^*
69	75.99	46.30^*
70	75.08	44.94^*
71	74.15	43.69^*
72	73.22	42.31^*
73	72.26	40.90^*
74	71.35	39.52^*
75	15170.31	15138.09
76	69.33	36.65
77	68.37	35.20
78	67.34	33.76
79	66.32	32.31
80	65.26	30.86
81	64.22	29.23
82	63.14	27.77
83	62.09	26.25
84	60.99	24.69
85	59.90^*	23.16
86	58.80	21.55
87		19.84
88		18.21
	(0,1)
58		14463.92^*
59		62.97
60		61.94
61		60.86
62		59.85
63		58.77
64		14457.71
65		56.59
66	14484.25^*	55.50
67	83.55^*	54.38
68	82.85^*	53.26
69	82.13^*	52.11
70	81.40^*	50.94
71	80.63^*	49.78
72	⋯	⋯
73	⋯	47.32
74	78.30^*	46.13
75	77.50^*	⋯
76	76.69^*	43.69
77	75.86^*	42.46
78	75.00^*	41.23
79	74.16^*	39.87
80	⋯	38.50
81	72.36^*	37.28
82	71.48^*	35.91
83	70.58^*	34.54
84	69.63^*	33.30^*
85	68.73^*	31.90^*
86	14467.74^*	14430.51^*
87	66.84^*	29.06^*
88	65.75^*	27.60^*
89	64.69	26.27^*
90	63.64	24.91^*
91	62.59	23.44^*
92	61.57	21.87^*
93	60.51	20.38^*
94	59.45	18.93^*
95	58.33	17.36^*
96	57.22	15.81^*
97	56.13	14.36^*
98	54.98	12.66^*
99	53.82	⋯
100	52.65	09.51
101	51.49	08.03
102	50.33	06.38
103	49.14	04.74
104	⋯	03.05
105	46.69
106	45.41
107	14444.13
108	42.86
109	41.55
110	40.28
111	38.86
112	37.55
113	36.22
114	34.86

Constant	Y³⁵Cl		Y³⁷Cl
Constant	Lower state	Upper state	Lower state	Upper state
B₀	0.1159	0.1086	0.1115	0.1045
B₁	0.1156	0.1079	0.1110	0.1037
B_e	0.1162	0.1089	0.1118	0.1048
α_e	0.0003	0.0007	0.0005	0.0008
D₀	9.3 × 10⁻⁸	9.0 × 10⁻⁸	8.3 × 10⁻⁸	8.5 × 10⁻⁸
D₁	9 × 10⁻⁸	9 × 10⁻⁸	⋯	10 × 10⁻⁸

Constants	Observed value	Theoretical value
ω_e^′(35)/ω_e^′(37)	0 980	0 9804
ω_e^″(35)/ω_e^″(37)	0.980	0.9804
B_e^′(35)/B_e^′(37)	0.962	0.9612
B_e^″(35)/B_e^″(37)	0.962	0.9612

Constant	Lower state	Upper state
k_e(Y³⁵Cl)	2.142 × 10⁵ dyn/cm	1.557 × 10⁵ dyn/cm
k_e(Y³⁷Cl)	2.138 × 10⁵ dyn/cm	1.554 × 10⁵ dyn/cm
$r_{e} (Y^{35} Cl)$	2.404 × 10⁻⁸ cm	2.483 × 10⁻⁸ cm
$r_{e} (Y^{37} Cl)$	2.403 × 10⁻⁸ cm	2.488 × 10⁻⁸ cm

J	Branch
J	R(J)	P(J)
	(0,0)
36	14876.71^*
37	76.36^*
38	76.00^*
39	75.69^*
40	75.32^*
41	74.91^*	14857.57
42	74.55^*	56.82
43	74.17^*	55.98
44	73.73^*	⋯
45	73.31^*	54.39
46	72.87^*	53.55
47	72.39^*	52.66^*
48	71.93	⋯
49	71.47^*	50.83
50	70.96^*	49.94
51	70.47^*	49.06
52	69.96^*	48.17
53	69.41^*	47.19
54	68.86^*	46.21
55	14868.31^*	14845.22
56	67.72^*	44.27
57	67.14^*	43.23
58	66.54^*	42.25
59	65.92^*	41.20
60	65.28^*	40.17
61	64.65^*	39.12
62	64.00^*	38.02
63	63.34^*	36.96
64	62.64^*	35.87
65	61.93^*	34.74
66	61.20^*	33.60
67	60.48^*	32.46
68	59.75^*	31.33
69	59.02^*	30.16
70	58.27^*	28.99
71	57.36	27.76
72	56.54	26.59
73	55.75	25.39

Band	Y³⁵Cl	Y³⁷Cl
0,0	14877.60	14878.09
0,1	14499.85	14507.58
1,0	15199.66	15193.50

J	Branch
J	R(J)	P(J)
	(0,0)
36	14876.71^*
37	76.36^*
38	76.00^*
39	75.69^*
40	75.32^*
41	74.91^*	14857.57
42	74.55^*	56.82
43	74.17^*	55.98
44	73.73^*	⋯
45	73.31^*	54.39
46	72.87^*	53.55
47	72.39^*	52.66^*
48	71.93	⋯
49	71.47^*	50.83
50	70.96^*	49.94
51	70.47^*	49.06
52	69.96^*	48.17
53	69.41^*	47.19
54	68.86^*	46.21
55	14868.31^*	14845.22
56	67.72^*	44.27
57	67.14^*	43.23
58	66.54^*	42.25
59	65.92^*	41.20
60	65.28^*	40.17
61	64.65^*	39.12
62	64.00^*	38.02
63	63.34^*	36.96
64	62.64^*	35.87
65	61.93^*	34.74
66	61.20^*	33.60
67	60.48^*	32.46
68	59.75^*	31.33
69	59.02^*	30.16
70	58.27^*	28.99
71	57.36	27.76
72	56.54	26.59
73	55.75	25.39

Band	Y³⁵Cl	Y³⁷Cl
0,0	14877.60	14878.09
0,1	14499.85	14507.58
1,0	15199.66	15193.50

Abstract

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Tables (10)

Equations (5)

Journal of the Optical Society of America