arsenic

• Formula: As
• Molecular weight: 74.92160
• IUPAC Standard InChI: InChI=1S/As Copy

  
• IUPAC Standard InChIKey: RQNWIZPPADIBDY-UHFFFAOYSA-N Copy
• CAS Registry Number: 7440-38-2
• Chemical structure:
  This structure is also available as a 2d Mol file
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • References
  • Notes
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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

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

(CAS Reg. No. 51680-81-0 • 4294967295) +  = CAS Reg. No. 51680-81-0

By formula: (CAS Reg. No. 51680-81-0 • 4294967295As) + As = CAS Reg. No. 51680-81-0

(CAS Reg. No. 51680-83-2 • 4294967295) +  = CAS Reg. No. 51680-83-2

By formula: (CAS Reg. No. 51680-83-2 • 4294967295As) + As = CAS Reg. No. 51680-83-2

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 evaluated as indicated in comments:
L - Sharon G. Lias

Data compiled as indicated in comments:
LL - Sharon G. Lias and Joel F. Liebman
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
B - John E. Bartmess

View reactions leading to As⁺ (ion structure unspecified)

Electron affinity determinations

Ionization energy determinations

References

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, NIST Free Links, Notes

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

Lippa, Xu, et al., 1998
Lippa, T.P.; Xu, S.J.; Lyapustina, S.A.; Nilles, J.M.; Bowen, K.H., Photoelectron spectroscopy of As-, As-2(-), As-3(-), As-4(-), and As-5(-), J. Chem. Phys., 1998, 109, 24, 10727-10731, https://doi.org/10.1063/1.477771 . [all data]

Walter, Gibson, et al., 2009
Walter, C.W.; Gibson, N.D.; Field, R.L.; Snedden, A.P.; Shapiro, J.Z.; Janczak, C.M.; Hanstorp, D., Electron affinity of arsenic and the fine structure of As- measured using infrared photodetachment threshold spectroscopy, Phys. Rev. A, 2009, 80, 1, 014501, https://doi.org/10.1103/PhysRevA.80.014501 . [all data]

Feldmann, Rackwitx, et al., 1977
Feldmann, D.; Rackwitx, R.; Heinicke, E.; Kaiser, H.J., Photodetachment of Some Atomic Negative Ions: P-, As-, Sb-, Te-, Cr-, Ni-, Z. Physik A., 1977, 282, 2, 143-148, https://doi.org/10.1007/BF01408156 . [all data]

Lide, 1992
Lide, D.R. (Editor), Ionization potentials of atoms and atomic ions in Handbook of Chem. and Phys., 1992, 10-211. [all data]

Kelly, 1987
Kelly, R.L., Atomic and ionic spectrum lines of hydrogen through kryton, J. Phys. Chem. Ref. Data, 1987, 16. [all data]

Lau, Brittain, et al., 1981
Lau, K.H.; Brittain, R.D.; Hildenbrand, D.L., The dissociation energy of AsO from gaseous equilibrium measurements, Chem. Phys. Lett., 1981, 81, 227. [all data]

Munir, Street, et al., 1971
Munir, Z.A.; Street, G.B.; Winters, H.F., Mass-spectrometric and vapor pressure studies on the sublimation of realgar (As₄S₄), J. Chem. Phys., 1971, 55, 4520. [all data]

Bhatia and Jones, 1971
Bhatia, K.S.; Jones, W.E., Autoionized series in the arc spectrum of arsenic, Can. J. Phys., 1971, 49, 1773. [all data]

Notes

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, NIST Free Links, References

• Symbols used in this document:
  

  EA	Electron affinity
  IE (evaluated)	Recommended ionization energy
  ΔrH°	Enthalpy of reaction at standard conditions

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