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Zinc monohydride

Constants of diatomic molecules

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Klaus P. Huber and Gerhard H. Herzberg

Data collected through July, 1975

Symbols used in the table of constants
State electronic state and / or symmetry symbol
Te minimum electronic energy (cm-1)
ωe vibrational constant – first term (cm-1)
ωexe vibrational constant – second term (cm-1)
ωeye vibrational constant – third term (cm-1)
Be rotational constant in equilibrium position (cm-1)
αe rotational constant – first term (cm-1)
γe rotation-vibration interaction constant (cm-1)
De centrifugal distortion constant (cm-1)
βe rotational constant – first term, centrifugal force (cm-1)
re internuclear distance (Å)
Trans. observed transition(s) corresponding to electronic state
ν00 position of 0-0 band (units noted in table)
Diatomic constants for 64ZnH
C 2Sigma+ 41090 1824 H 48  [7.23] 1   [4.7E-4]  [1.533] C larrow X V 41200 H
Khan, 1962
B 2Sigma+ 27587.7 1020.7 Z 16.5  [3.288] 2   [1.40E-4]  [2.273] B rarrow X R 27303.9 Z
Stenvinkel, 1936
A 2Pir 23276.9 3 1910.2 Z 40.8  7.4332 4 0.2385  [4.482E-4] 5  1.5119 A rarrow X V 23431.8 6 Z
Watson, 1930; Stenvinkel, 1936; Fujioka and Tanaka, 1937; Stenvinkel, Svensson, et al., 1939; Mrozowski, 1940; Veseth, 1971
X 2Sigma+ 0 1607.6 Z 55.14 7 .398 6.6794 8 0.2500 9  [4.66E-4] 10  1.59490 11  


1All lines diffuse; predissociation.
2All observed vibrational levels of B 2Sigma show perturbations by A 2Pi levels with v geq l. The rotational constants in Stenvinkel, 1936 are satisfactorily reproduced by Bv = 3.304 - 0.033(v+1/2) + 0.00060(v+1/2)2 - 0.000245(v+1/2)3 except for v=1, 2, and 3 all of which are close to the intersection of the two potential curves.
3A0 = +342.66 Veseth, 1971, A1 = +342.06 Veseth, 1971 [as recalculated in Veseth, 1971 from the data of Stenvinkel, 1936].
4Rotational constants for v=0 and 1 as recalculated in Veseth, 1971 from the data of Stenvinkel, 1936. Lambda-type doubling Deltanufe(2Pi1/2, v=0) ~ 0.269(J+1/2) - ..., and in 2Pi3/2 [see Fujioka and Tanaka, 1937 and Stenvinkel, 1936].
5D1 = 4.46E-4; H0 = +1.34E-8, H1 = +0.9E-8.
6J'=1/2 (average of F1 and {F2}) relative to N"=0. A different definition was used in Stenvinkel, 1936.
7omegaeze = -0.4339. Very rapid convergence. The constants (from Stenvinkel, 1936) lead to a discrepancy of nearly 6 cm-1 for the highest observed level, v=5.
8Spin doubling, Delta v12(v=0) = +0.254(N+1/2) - ... [ Stenvinkel, 1936, see also Veseth, 1970], decreasing rapidly with increasing v.
9alphav= -0.03765(v+1/2)2 + 0.00897(v+1/2)3 - 0.001479(v+1/2)4.
10D1(E-4 cm-1)= 5.00, D2(E-4 cm-1)= 5.49, D3(E-4 cm-1)= 6.58, D4(E-4 cm-1)= 8.40, D5(E-4 cm-1)= 10.5. Also higher order terms, see Stenvinkel, 1936.
11ESR sp. 13
12Short extrapolation for the ground state.
13In Ar matrix at 4 K Knight and Weltner, 1971.
14From the value for ZnH.
15A0 = +342.82 Veseth, 1971, as recalculated in Veseth, 1971 from the data of Fujioka and Tanaka, 1937.
16Rotational constants recalculated in Veseth, 1971 from data in Fujioka and Tanaka, 1937. Lambda-type doubling Deltanufe(2Pi1/2) ~ +0.170~(J+1/2) - ,.., see Fujioka and Tanaka, 1937.
17H0 = +1.6E-8.
18Spin doubling Deltanu12 = +0.131(N+1/2), see Fujioka and Tanaka, 1937.


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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Khan, 1962
Khan, M.A., New band systems of ZnH and ZnD in the far ultra-violet region, Proc. Phys. Soc. London, 1962, 80, 599. [all data]

Stenvinkel, 1936
Stenvinkel, G., Dissertation - Ref. to earlier work are reviewed in this paper, Stockholm, 1936, 1. [all data]

Watson, 1930
Watson, W.W., The Zeeman effect in the ZnH and CdH bands, Phys. Rev., 1930, 36, 1134. [all data]

Fujioka and Tanaka, 1937
Fujioka, Y.; Tanaka, Y., Molecular spectra of zinc hydride and deuteride, Sci. Pap. Inst. Phys. Chem. Res. Jpn., 1937, 32, 143-156. [all data]

Stenvinkel, Svensson, et al., 1939
Stenvinkel, G.; Svensson, E.; Olsson, E., Precision wave-lengths for some metal hydride bands and the evidence of their existence in the solar spectrum, Ark. Mat. Astron. Fys., 1939, 26, 1. [all data]

Mrozowski, 1940
Mrozowski, S., Nuclear isotope shift in the spectrum of ZnH, Phys. Rev., 1940, 58, 597. [all data]

Veseth, 1971
Veseth, L., Corrections to the spin-orbit splitting in 2«PI» states of diatomic molecules, J. Mol. Spectrosc., 1971, 38, 228. [all data]

Veseth, 1970
Veseth, L., Modifications of the doublet energy formulae of a diatomic molecule necessitated by the rotational stretching, J. Phys. B:, 1970, 3, 1677. [all data]

Knight and Weltner, 1971
Knight, L.B., Jr.; Weltner, W., Jr., Hyperfine interaction, chemical bonding, and isotope effect in ZnH, CdH, and HgH molecules, J. Chem. Phys., 1971, 55, 2061. [all data]


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