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Platinum(II) acetate

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

Platinum(II) acetate
Names
Other names
platinum diacetate, platinum acetate
Identifiers
3D model (JSmol)
  • Interactive image
ChemSpider
  • 9326225
  • 11151117
  • InChI=1S/2C2H4O2.Pt/c2*1-2(3)4;/h2*1H3,(H,3,4);/q;;+2/p-2
    Key: QCSGLAMXZCLSJW-UHFFFAOYSA-L
  • CC(=O)[O-].CC(=O)[O-].[Pt+2]
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
8 tetrameric molecules
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

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. ^ a b 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". J. Chem. Soc., Chem. Commun. (11): 410–411. doi:10.1039/C39760000410. ISSN 0022-4936.
  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.

platinum, acetate, purple, colored, coordination, complex, complex, adopts, unusual, structure, consisting, square, array, atoms, namesother, names, platinum, diacetate, platinum, acetateidentifiers3d, model, jsmol, interactive, imagechemspider, 9326225pubchem. Platinum II acetate is a purple colored coordination complex The complex adopts an unusual structure consisting of a square array of Pt atoms Platinum II acetate NamesOther names platinum diacetate platinum acetateIdentifiers3D model JSmol Interactive imageChemSpider 9326225PubChem CID 11151117InChI InChI 1S 2C2H4O2 Pt c2 1 2 3 4 h2 1H3 H 3 4 q 2 p 2Key QCSGLAMXZCLSJW UHFFFAOYSA LSMILES CC O O CC O O Pt 2 PropertiesChemical formula Pt CH3CO2 2Molar mass 315 19 g molAppearance purple solidDensity 3 374 g cm3Melting point 245 C 473 F 518 K decompositionSolubility in water chloroformStructure 1 Crystal structure tetragonalSpace group P43212 No 96Lattice constant a 10 254 A c 50 494 AFormula units Z 8 tetrameric moleculesExcept where otherwise noted data are given for materials in their standard state at 25 C 77 F 100 kPa Infobox referencesPreparation EditSeveral 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 EditAccording 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 Edit a b 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 J Chem Soc Chem Commun 11 410 411 doi 10 1039 C39760000410 ISSN 0022 4936 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 Retrieved from https en wikipedia org w index php title Platinum II acetate amp oldid 1128344364, wikipedia, wiki, book, books, library,

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