Chemistry:Platinum(II) acetate
8_(PLATAC10).png)
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| Names | |
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| Other names
platinum diacetate, platinum acetate
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| Identifiers | |
3D model (JSmol)
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| ChemSpider | |
PubChem CID
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| Properties | |
| 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 |
| chloroform | |
| Structure[1] | |
| tetragonal | |
| P43212, No. 96 | |
a = 10.254 Å, c = 50.494 Å
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Formula units (Z)
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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
- ↑ 1.0 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.
- ↑ 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.
- ↑ 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.
- ↑ 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.
Acetyl halides and salts of the acetate ion
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| 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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