# Zinc monohydride

**Formula:**HZn**Molecular weight:**66.39**IUPAC Standard InChI:**- InChI=1S/Zn.H
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**IUPAC Standard InChIKey:**FLVYKYVLYPYTAY-UHFFFAOYSA-N**CAS Registry Number:**13981-87-8**Chemical structure:**

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## Constants of diatomic molecules

**Go To:** Top, References, Notes

**
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

Symbol | Meaning |
---|---|

State | electronic state and / or symmetry symbol |

T_{e} | minimum electronic energy (cm^{-1}) |

ω_{e} | vibrational constant – first term (cm^{-1}) |

ω_{e}x_{e} | vibrational constant – second term (cm^{-1}) |

ω_{e}y_{e} | vibrational constant – third term (cm^{-1}) |

B_{e} | rotational constant in equilibrium position (cm^{-1}) |

α_{e} | rotational constant – first term (cm^{-1}) |

γ_{e} | rotation-vibration interaction constant (cm^{-1}) |

D_{e} | centrifugal distortion constant (cm^{-1}) |

β_{e} | rotational constant – first term, centrifugal force (cm^{-1}) |

r_{e} | internuclear distance (Å) |

Trans. | observed transition(s) corresponding to electronic state |

ν_{00} | position of 0-0 band (units noted in table) |

State | T_{e} | _{e} | _{e}x_{e} | _{e}y_{e} | B_{e} | _{e} | _{e} | D_{e} | _{e} | r_{e} | Trans. | _{00} |
---|---|---|---|---|---|---|---|---|---|---|---|---|

C ^{2}^{+} | 41090 | 1824 H | 48 | [7.23] 1 | [4.7E-4] | [1.53_{3}] | C X V | 41200 H | ||||

↳Khan, 1962 | ||||||||||||

B ^{2}^{+} | 27587._{7} | 1020._{7} Z | 16._{5} | [3.288] 2 | [1.40E-4] | [2.273] | B X R | 27303.9 Z | ||||

↳Stenvinkel, 1936 | ||||||||||||

A ^{2}_{r} | 23276.9 3 | 1910.2 Z | 40.8 | 7.433_{2} 4 | 0.238_{5} | [4.482E-_{4}] 5 | 1.5119 | A X V | 23431.8 6 Z | |||

↳Watson, 1930; Stenvinkel, 1936; Fujioka and Tanaka, 1937; Stenvinkel, Svensson, et al., 1939; Mrozowski, 1940; Veseth, 1971 | ||||||||||||

X ^{2}^{+} | 0 | 1607.6 Z | 55.14 7 | .398 | 6.6794 8 | 0.2500 9 | [4.66E-4] 10 | 1.5949_{0} 11 |

### Notes

1 | All lines diffuse; predissociation. |

2 | All observed vibrational levels of B ^{2} show perturbations by
A ^{2} levels with v l.
The rotational constants in Stenvinkel, 1936 are satisfactorily reproduced by B_{v} = 3.304 -
0.033(v+1/2) + 0.00060(v+1/2)^{2} - 0.00024_{5}(v+1/2)^{3} except for v=1, 2, and 3 all
of which are close to the intersection of the two potential curves. |

3 | A_{0} = +342.66 Veseth, 1971, A_{1} = +342.06 Veseth, 1971 [as recalculated in Veseth, 1971 from the data of Stenvinkel, 1936]. |

4 | Rotational constants for v=0 and 1 as recalculated in Veseth, 1971 from the data of Stenvinkel, 1936.
-type doubling _{fe}(^{2}_{1/2}, v=0) ~ 0.26_{9}(J+1/2) - ...,
and in ^{2}_{3/2} [see Fujioka and Tanaka, 1937 and Stenvinkel, 1936]. |

5 | D_{1} = 4.46E-4; H_{0} = +1.3_{4}E-8, H_{1} = +0.9E-8. |

6 | J'=1/2 (average of F_{1} and {F_{2}}) relative to N"=0.
A different definition was used in Stenvinkel, 1936. |

7 | _{e}z_{e} = -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. |

8 | Spin doubling, v_{12}(v=0) = +0.254(N+1/2) - ... [ Stenvinkel, 1936, see also Veseth, 1970],
decreasing rapidly with increasing v. |

9 | _{v}= -0.03765(v+1/2)^{2} + 0.00897(v+1/2)^{3} - 0.001479(v+1/2)^{4}. |

10 | D_{1}(E-4 cm^{-1})= 5.00,
D_{2}(E-4 cm^{-1})= 5.49,
D_{3}(E-4 cm^{-1})= 6.58,
D_{4}(E-4 cm^{-1})= 8.40,
D_{5}(E-4 cm^{-1})= 10.5.
Also higher order terms, see Stenvinkel, 1936. |

11 | ESR sp. 13 |

12 | Short extrapolation for the ground state. |

13 | In Ar matrix at 4 K Knight and Weltner, 1971. |

14 | From the value for ZnH. |

15 | A_{0} = +342.82 Veseth, 1971, as recalculated in Veseth, 1971 from the data of Fujioka and Tanaka, 1937. |

16 | Rotational constants recalculated in Veseth, 1971 from data in Fujioka and Tanaka, 1937.
-type doubling _{fe}(^{2}_{1/2}) ~ +0.170~(J+1/2) - ,.., see Fujioka and Tanaka, 1937. |

17 | H_{0} = +1._{6}E-8. |

18 | Spin doubling _{12} = +0.131(N+1/2), see Fujioka and Tanaka, 1937. |

## References

**Go To:** Top, Constants of diatomic molecules, Notes

**
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]

## Notes

**Go To:** Top, Constants of diatomic molecules, References

- Data from NIST Standard Reference Database 69:
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