Dithiodiphosphoric Acid

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Properties Simple | Detailed

Formula H4O5P2S2
IUPAC Name dihydroxyphosphinothioyloxy-dihydroxy-thioxo-λ5-phosphane
Molecular Mass 210.106 g·mol−1
Heat of Formation -1535.7 ± 16.7 kJ·mol−1
Dipole Moment 2.03 ± 1.08 D
Volume 190.58 Å 3
Surface Area 186.01 Å 2
HOMO Energy -8.76 ± 0.55 eV
LUMO Energy 1.41 ± eV
Point Group Symmetry C1
Synonyms
  • bis(thiopyrophosphoric acid)
  • dihydroxyphosphinothioyloxy-dihydroxy-sulfanylidene-phosphorane
  • dihydroxyphosphinothioyloxy-dihydroxy-sulfanylidenephosphorane
  • dihydroxyphosphinothioyloxy-dihydroxy-thioxo-phosphorane
  • dihydroxyphosphinothioyloxy-dihydroxy-thioxophosphorane
  • dihydroxythiophosphoryloxy-dihydroxy-thioxo-phosphorane
  • dithiopyrophosphate
  • dithiopyrophosphoric acid
CAS Number(s)
  • 36558-41-5
InChIKey CIFZCCWGXMYJEU-UHFFFAOYSA-N
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