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Potassium tetraiodoplatinate

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Potassium tetraiodoplatinate
Identifiers
CAS Number
3D model (JSmol)
PubChem CID
InChI
  • InChI=1S/4HI.2K.Pt/h4*1H;;;/q;;;;2*+1;+2/p-4Key: WYVJXXSNNPZRSS-UHFFFAOYSA-J
SMILES
  • ..()()
Properties
Chemical formula H4I4K2O2Pt
Molar mass 816.928 g·mol
Appearance black solid
Density 4.31 g/cm
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). Infobox references
Chemical compound

Potassium tetraiodoplatinate is the inorganic compound with the formula K2PtI4·(H2O)2. It is the potassium salt of tetraiodoplatinate, a square planar complex of platinum(II). The compound crystallizes from water as the dihydrate, whereas the related chloride and bromide K2PtCl4 and K2PtBr4 are obtained only as the anhydrous salts.

It reacts with amines and with ammonia to give charge-neutral derivatives PtI2(RNH2)2. The compound is prepared by the salt metathesis reaction of potassium iodide and potassium tetrachloroplatinate:

K2PtCl4 + 4 KI → K2PtI4 + 4 KCl

Potassium tetraiodoplatinate is a precursor to the anticancer drug cisplatin.

References

  1. ^ Olsson, Lars-Fride; Oskarsson, Åke; Larsen, Sine; Teuber, Lene; Lucanska, Brigitta; Krätsmar-Smogrovic, Juraj; Valent, Aladár; Alminger, Tomas; Erickson, Magnus; Grundevik, Inger; Hagin, Inger; Hoffman, Kurt-Jürgen; Johansson, Svante; Larsson, Sam; Löfberg, Ingalil; Ohlson, Kristina; Persson, Björn; Skånberg, Inger; Tekenbergs-Hjelte, Lija (1989). "The Crystal Structure of Potassium Tetraiodoplatinate(II) Dihydrate". Acta Chemica Scandinavica. 43: 811–812. doi:10.3891/acta.chem.scand.43-0811.
  2. Rochon, Fernande D.; Buculei, Viorel (2004). "Multinuclear NMR Study and Crystal Structures of Complexes of the Types cis- and trans-Pt(amine)2I2". Inorganica Chimica Acta. 357 (8): 2218–2230. doi:10.1016/j.ica.2003.10.039.
  3. Olsson, Lars-Fride (1989). "Dipotassium Tetraiodoplatinate(II) Dihydrate". Inorganic Syntheses. Vol. 25. pp. 98–100. doi:10.1002/9780470132562.ch21. ISBN 978-0-471-61874-4.
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