Dilead

• Formula: Pb₂
• Molecular weight: 414.4
• CAS Registry Number: 12596-92-8
• Information on this page:
  • Gas phase thermochemistry data
  • Gas phase ion energetics data
  • References
  • Notes
• Other data available:
  • Constants of diatomic molecules
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
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Gas phase 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.

Gas Phase Heat Capacity (Shomate Equation)

C_p° = A + B*t + C*t² + D*t³ + E/t²
H° − H°_298.15= A*t + B*t²/2 + C*t³/3 + D*t⁴/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t²/2 + D*t³/3 − E/(2*t²) + G
    C_p = heat capacity (J/mol*K)
    H° = standard enthalpy (kJ/mol)
    S° = standard entropy (J/mol*K)
    t = temperature (K) / 1000.

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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:
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
B - John E. Bartmess

Electron affinity determinations

Ionization energy determinations

References

Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, Notes

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

Chase, 1998
Chase, M.W., Jr., NIST-JANAF Themochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]

Sun, Sun, et al., 2009
Sun, Z.; Sun, S.T.; Liu, H.T.; Zhu, Q.H.; Gao, Z.; Tang, Z.C., Photoelectron Spectroscopic and Theoretical Studies of MmC6F5 Anionic Complexes (M = Ph and Bi; m=1-4), J. Phys. Chem. A, 2009, 113, 28, 8045-8054, https://doi.org/10.1021/jp8099626 . [all data]

Ho, Polak, et al., 1992
Ho, J.; Polak, M.L.; Lineberger, W.C., Photoelectron Spectroscopy of Group-IV Heavy Metal Dimers - Sn2-, Pb2-, and SnPb-, J. Chem. Phys., 1992, 96, 1, 144, https://doi.org/10.1063/1.462503 . [all data]

Sobhy, Reveles, et al., 2009
Sobhy, M.A.; Reveles, J.U.; Gupta, U.; Khanna, S.N.; Castleman, A.W., Photoelectron imaging and theoretical investigation of bimetallic Bi1-2Ga0-2- and Pb-1-4(-) cluster anions, J. Chem. Phys., 2009, 130, 5, 054304, https://doi.org/10.1063/1.3069295 . [all data]

Ganteför, Gausa, et al., 1989
Ganteför, G.; Gausa, M.; Meiwes-Broer, K.H.; Lutz, H.O., Photoemission from Tin and Lead Clusters Anions, Z. Phys. D, 1989, 14, 1-4, 405, https://doi.org/10.1007/BF01426983 . [all data]

Saito, Yamauchi, et al., 1982
Saito, Y.; Yamauchi, K.; Mihama, K.; Noda, T., Formation and ionization potentials of lead clusters, Jpn. J. Appl. Phys., 1982, 21, 396. [all data]

Notes

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• Symbols used in this document:
  

  EA	Electron affinity
  S°gas,1 bar	Entropy of gas at standard conditions (1 bar)
  ΔfH°gas	Enthalpy of formation of gas at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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