Silver monohydride

Reaction thermochemistry data

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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: John E. Bartmess

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Individual Reactions

Ag- + Hydrogen cation = HAg

By formula: Ag- + H+ = HAg

Quantity Value Units Method Reference Comment
ΔrH°336.1 ± 1.9kcal/molD-EABilodeau, Scheer, et al., 1998gas phase

Gas phase ion energetics data

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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 as indicated in comments:
B - John E. Bartmess
LL - Sharon G. Lias and Joel F. Liebman

Ionization energy determinations

IE (eV) Method Reference Comment
9.23 ± 0.12END/DERChen and Armentrout, 1995LL
9.2DERLias, Bartmess, et al., 1988LL

De-protonation reactions

Ag- + Hydrogen cation = HAg

By formula: Ag- + H+ = HAg

Quantity Value Units Method Reference Comment
ΔrH°336.1 ± 1.9kcal/molD-EABilodeau, Scheer, et al., 1998gas phase; B

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 October, 1974

Symbols used in the table of constants
SymbolMeaning
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 107AgH
StateTeωeωexeωeyeBeαeγeDeβereTrans.ν00
c0 (3Π0)     [5.10] 1   [0.00060]  [1.820] c0 ← X R 46981.1 Z
↳missing citation
d 3Σ+     [(3.83)] 2     [(2.100)]  (46875) 3
↳missing citation
c1 3Π1     [(4.95)] 4   [(0.00060)]  [(1.847)] c1 ← X R (46600) 4
↳missing citation
D 1Π (46720) [844.7] Z (120)  5.23 5 0.58  0.00060  1.797 D ← X R 46360.9 Z
↳missing citation
StateTeωeωexeωeyeBeαeγeDeβereTrans.ν00
b (3Δ1) 1     [4.805] 6   [0.00035]  [1.8745] b ← X 7 R 44529.2 Z
↳missing citation
B 1Σ+ (44512) [1089] 8 (65)  (4.87) 8 (0.31)  (0.00038)  (1.862) B ← X R (44234) 8
↳missing citation
a 3Πr (41700) 9 (1450) (50)  (>6.3) 9     (<1.64)  
↳missing citation
C 1Π (41261) (1589) 10 (42) 10  [6.54] (0.31) 10  [0.00049]  [1.607] C ← X 41173.6 Z
↳missing citation
StateTeωeωexeωeyeBeαeγeDeβereTrans.ν00
A 1Σ+ 29959 [1489.6] Z 87.0 11  [6.0905] 0.3485 11  [0.000389]  [1.6650] A ← X R 29897.94 Z
↳Bengtsson and Olsson, 1931; missing citation; Gero and Schmid, 1943; Learner, 1962; Loginov, 1964
X 1Σ+ 0 1759.9 Z 34.06 12  6.449 13 0.201 12  [0.000344] 14  [1.6181]  

Notes

1Strong perturbations. Constants valid near J=0 only.
2From perturbations in c1(v=0).
3Estimated energy of v'=0,N'=0 relative to X 1Σ (v=0,N=0).
4The only observed level is strongly perturbed by more than one state. Constants refer to unperturbed region around J=l9. Origin of 0-0 band (not observed) at 46692 cm-1.
5Perturbations in v=0,1; bands going to v'=0 of AgD have not been analyzed. Constants refer to unperturbed regions near J=0. Large Λ-type doubling. AgH: Δνef(v=0) = 0.244J(J+1)-... AgD: Δνef(v=1) = +0.0772J(J+1).
6Constants refer to unperturbed region near J=O. Large Ω-type doubling; AgH: Δνef = 0.156J(J+1)-... AgD: Δνef = 0.0337J(J+1)+ ...
7P branch very weak or absent.
8Approximate constants for the deperturbed state. Origins of the 0-0 bands at 44225.0 cm-1 (AgH) and 44277.4 cm-1 (AgD). v=1 is free of perturbations. AgH; B1=4.4l2, D1=3.5E-4, ν0(1-0)=45322.8 cm-1; AgD; B1=2.343, D1=0.95E-4, ν0(1-0)=45097.8 cm-1.
9Constants estimated from perturbations in C 1Π , B 1Σ+, D 1Π of AgH, and b 1 of AgD; vibrational numbering uncertain. +150 ≤ A ≤ +200.
10Approximate constants for the deperturbed state. Perturbations in v=0,1,2 are caused by a 3Π. AgH: ΔG(1/2)= 1519, ΔG(3/2)= 1453; AgD: ΔG(1/2)= 1056, ΔG(3/2)= 987.
11Anomalous potential curve; see Learner, 1962. Constants for higher vibrational levels of AgH in Bengtsson and Olsson, 1931, Bengtsson-Knave, 1932. The constants for AgD are valid for v ≤ 4.
12Higher order terms are needed to represent levels with v ≥ 4; see Bengtsson and Olsson, 1931, Bengtsson-Knave, 1932, Gero and Schmid, 1943.
13RKRV potential curve Singh and Rai, 1965.
14H0= +88E-10(AgH); H0= +6E-10 (AgD).
15Graphical Birge-Sponer extrapolation of X 1Σ+. Thermochemical value 2.49 eV Farkas, 1929.
16From the value for AgH.
17Constants refer to unperturbed regions near J=0. Small Λ-type doubling.
18R,P much weaker than Q branches.
19Approximate constants for the deperturbed state. v=0 strongly perturbed by more than one state. Origin of 0-0 band (not observed) at 46794 cm-1.

References

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, 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.

Bilodeau, Scheer, et al., 1998
Bilodeau, R.C.; Scheer, M.; Haugen, H.K., Infrared Laser Photodetachment of Transition Metal Negative Ions: Studies on Cr-, Mo-, Cu-, and Ag-, J. Phys. B: Atom. Mol. Opt. Phys., 1998, 31, 17, 3885-3891, https://doi.org/10.1088/0953-4075/31/17/013 . [all data]

Chen and Armentrout, 1995
Chen, Y.-M.; Armentrout, P.B., Guided ion beam studies of the reactions of Ag+ with C2H6, C3H8, HC(CH3)3, and c-C3H6, J. Phys. Chem., 1995, 99, 11424. [all data]

Lias, Bartmess, et al., 1988
Lias, S.G.; Bartmess, J.E.; Liebman, J.F.; Holmes, J.L.; Levin, R.D.; Mallard, W.G., Gas-phase ion and neutral thermochemistry, J. Phys. Chem. Ref. Data, Suppl. 1, 1988, 17, 1-861. [all data]

Bengtsson and Olsson, 1931
Bengtsson, E.; Olsson, E., Eine neue untersuchung uber die banden des silberhydrids, Z. Phys., 1931, 72, 163. [all data]

Gero and Schmid, 1943
Gero, L.; Schmid, R., Uber das bandenspektrum des silberhydrids, Z. Phys., 1943, 121, 459. [all data]

Learner, 1962
Learner, R.C.M., The influence of vibration-rotation interaction on intensities in the electronic spectra of diatomic molecules. II. The silver hydride molecule, Proc. R. Soc. London A, 1962, 269, 327. [all data]

Loginov, 1964
Loginov, V.A., The production of electronic band spectra by the exploding wire method, Opt. Spectrosc. Engl. Transl., 1964, 16, 220, In original 402. [all data]

Bengtsson-Knave, 1932
Bengtsson-Knave, E., Uber die bandenspektren einiger metallhydride, Nova Acta Regiae Soc. Sci. Ups., 1932, 8, 4, 1-98. [all data]

Singh and Rai, 1965
Singh, R.B.; Rai, D.K., On the potential energy curves of AgH, AgCl, and AgI, Can. J. Phys., 1965, 43, 1685. [all data]

Farkas, 1929
Farkas, A., Uber die bildung von gasformigen goldhydrid, Z. Phys. Chem. Abt. B, 1929, 5, 467. [all data]

Notes

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