Platinum(II) acetate

Names
Other names

platinum diacetate, platinum acetate

Identifiers

3D model (JSmol)

* Interactive image

ChemSpider |

* 9326225

PubChem CID

* 11151117

InChI

* InChI=1S/2C2H4O2.Pt/c2*1-2(3)4;/h2*1H3,(H,3,4);/q;;+2/p-2

Key: QCSGLAMXZCLSJW-UHFFFAOYSA-L

SMILES

* CC(=O)[O-].CC(=O)[O-].[Pt+2]

Properties

Chemical formula

| Pt(CH3CO2)2
Molar mass | 315.19 g/mol
Appearance  | purple solid
Density | 3.374 g/cm3
Melting point |  245 °C (473 °F; 518 K) decomposition

Solubility in water

| chloroform
Structure[1]

Crystal structure

| tetragonal

Space group

| P43212, No. 96

Lattice constant

a = 10.254 Å, c = 50.494 Å

Formula units (Z)

| 8 tetrameric molecules

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Infobox references

Platinum(II) acetate is a purple-colored coordination complex. The complex adopts an unusual structure consisting of a square array of Pt atoms.

## Preparation

Several syntheses of platinum(II) acetate have been reported. Geoffrey Wilkinson et al. reported a synthesis from sodium hexahydroxyplatinate, nitric acid, and acetic acid. This intermediate solution was reducted with formic acid. The procedure is not highly reproducible.[2]

Alternatively, the complex can be prepared by the reaction of silver acetate with platinum(II) chloride.[3]

## Structure

According to X-ray crystallography, the complex is tetrameric, in contrast to the trimeric palladium analog.[4] The four platinum atoms form a square cluster, with eight bridging acetate ligands surrounding them. The compound has slight distortions from idealized D2d symmetry. The crystal is tetragonal.[1]

## References

1. ↑ 1.0 1.1 de C. T. Carrondo, Maria A. A. F.; Skapski, Andrzej C. (1976). "X-Ray crystal structure of tetrameric platinum(II) acetate: a square-cluster complex with short Pt–Pt bonds and octahedral co-ordination geometry" (in en). J. Chem. Soc., Chem. Commun. (11): 410–411. doi:10.1039/C39760000410. ISSN 0022-4936. http://xlink.rsc.org/?DOI=C39760000410.
2. ↑ T. A. Stephenson; S. M. Morehouse; A. R. Powell; J. P. Heffer; G. Wilkinson (1965). "Carboxylates of Palladium, Platinum, and Rhodium, and Their Adducts". Journal of the Chemical Society: 3632–3640. doi:10.1039/jr9650003632.
3. ↑ Marino Basato; Andrea Biffis; Gianluca Martinati; Cristina Tubaro; Alfonso Venzo; Paolo Ganis; Franco Benetollo (2003). "Reaction of Platinum Acetate with Phosphines and Molecular Structure of trans-[Pt(OAc)2(PPh3)2]". Inorganica Chimica Acta 355: 399–403. doi:10.1016/S0020-1693(03)00314-1.
4. ↑ Markov, Alexander A.; Yakushev, Ilya A.; Churakov, Andrey V.; Khrustalev, Victor N.; Cherkashina, Natalia V.; Stolarov, Igor P.; Gekhman, Alexander E.; Vargaftik, Michael N. (2019). "Structure and Quantum Chemical Study of Crystalline Platinum(II) Acetate". Mendeleev Communications 29 (5): 489–491. doi:10.1016/j.mencom.2019.09.003.

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Platinum compounds

Pt(0)|

* Pt(P(C6H5)3)4

Pt(II)|

* Pt(NH3)2(CO2)2C4H6
* cis-Pt(NH3)2Cl2
* trans-Pt(NH3)2Cl2
* K2Pt(CN)4
* Pt(NH3)4PtCl4
* Pt(NH3)2CO2CH2O
* C6H10(NH2)2PtC2O4
* NH3PtCl2NC5H4CH3
* Pt(C2H3O2)2
* PtBr2
* PtCl2
* K2PtCl4
* (PtCl(NH3)2C6H12(NH2)2)Pt(NH3)2(NO3)4
* Pt(OH)2
* PtS

| Organoplatinum(II) compounds|

* PtCl2C8H12
* KPtCl3C2H4

|

Pt(IV)|

* PtO2
* (NH4)2PtCl6
* H2PtCl6
* PtBr4
* PtCl4
* PtF4
* K2PtCl6
* Pt(C2H3O2)2Cl2NH3NH2C6H11
* Na2PtCl6
* Pt(OH)4
* PtS2
* PtSe2
* XeFPtF5

Pt(V)|

* PtF5
* O2PtF6
* XePtF6

Pt(VI)|

* PtF6

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Acetyl halides and salts of the acetate ion

AcOH |  |  |  | He
LiOAc | Be(OAc)2
BeAcOH | B(OAc)3 | AcOAc
ROAc | NH4OAc | AcOOH | FAc | Ne
NaOAc | Mg(OAc)2 | Al(OAc)3
ALSOL
Al(OAc)2OH
Al2SO4(OAc)4 | Si  | P  | S  | ClAc | Ar
KOAc | Ca(OAc)2 | Sc(OAc)3 | Ti(OAc)4 | VO(OAc)3 | Cr(OAc)2
Cr(OAc)3 | Mn(OAc)2
Mn(OAc)3 | Fe(OAc)2
Fe(OAc)3 | Co(OAc)2,
Co(OAc)3 | Ni(OAc)2 | Cu(OAc)2 | Zn(OAc)2 | Ga(OAc)3 | Ge  | As(OAc)3 | Se  | BrAc | Kr
RbOAc | Sr(OAc)2 | Y(OAc)3 | Zr(OAc)4 | Nb  | Mo(OAc)2 | Tc  | Ru(OAc)2
Ru(OAc)3
Ru(OAc)4 | Rh2(OAc)4 | Pd(OAc)2 | AgOAc | Cd(OAc)2 | In  | Sn(OAc)2
Sn(OAc)4 | Sb(OAc)3 | Te  | IAc | Xe
CsOAc | Ba(OAc)2 |  | Hf  | Ta  | W  | Re  | Os  | Ir  | Pt(OAc)2 | Au  | Hg2(OAc)2,
Hg(OAc)2 | TlOAc
Tl(OAc)3 | Pb(OAc)2
Pb(OAc)4 | Bi(OAc)3 | Po  | At  | Rn
Fr  | Ra  |  | Rf  | Db  | Sg  | Bh  | Hs  | Mt  | Ds  | Rg  | Cn  | Nh  | Fl  | Mc  | Lv  | Ts  | Og
| ↓  |  |
La(OAc)3 | Ce(OAc)x | Pr  | Nd  | Pm  | Sm(OAc)3 | Eu(OAc)3 | Gd(OAc)3 | Tb  | Dy(OAc)3 | Ho(OAc)3 | Er  | Tm  | Yb(OAc)3 | Lu(OAc)3
Ac  | Th  | Pa  | UO2(OAc)2 | Np  | Pu  | Am  | Cm  | Bk  | Cf  | Es  | Fm  | Md  | No  | Lr

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