2,4(1H,3H)-Pyrimidinedithione

• Formula: C₄H₄N₂S₂
• Molecular weight: 144.218
• IUPAC Standard InChI: InChI=1S/C4H4N2S2/c7-3-1-2-5-4(8)6-3/h1-2H,(H2,5,6,7,8) Copy

  
• IUPAC Standard InChIKey: ZEQIWKHCJWRNTH-UHFFFAOYSA-N Copy
• CAS Registry Number: 2001-93-6
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
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• Other names: Uracil, 2,4-dithio-; Dithiouracil; 2,4-Dimercaptopyrimidine; 2,4-Dithiouracil; 2,4-Dithioxopyrimidine; 2,4-Pyrimidinedithiol; Pyrimidine-2,4-dithiol; 2,4-Dithiopyrimidine; Dithiopyrimidine; USAF CB-14; NSC 42031
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• Information on this page:
  • Gas phase ion energetics data
  • References
  • Notes
• Other data available:
  • Phase change data
  • Mass spectrum (electron ionization)
• Data at other public NIST sites:
  • X-ray Photoelectron Spectroscopy Database, version 5.0
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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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias

Data compiled as indicated in comments:
B - John E. Bartmess

Electron affinity determinations

References

Go To: Top, 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.

Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G., Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update, J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018 . [all data]

Li, Chen, et al., 2011
Li, X.A.; Chen, J.; Bowen, K.H., Photoelectron spectroscopic study of the negative ions of 4-thiouracil and 2,4-dithiouracil, J. Chem. Phys., 2011, 134, 7, 074304, https://doi.org/10.1063/1.3555177 . [all data]

Notes

Go To: Top, Gas phase ion energetics data, References

• Symbols used in this document:
  

  EA	Electron affinity

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