Zinc acetylacetonate

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Structural formula
Structural formula of zinc acetylacetonate
General
Surname Zinc acetylacetonate
other names
  • Bis (acetylacetonato) zinc (II)
  • Bis (2,4-pentanedionato) zinc (II)
  • Zinc (II) acetylacetonate
  • Zn (acac) 2
Molecular formula C 10 H 14 O 4 Zn
Brief description

crystalline solid

External identifiers / databases
CAS number
  • 14024-63-6
  • 108503-47-5 (hydrate)
EC number 237-860-3
ECHA InfoCard 100.034.405
PubChem 5360437
ChemSpider 4514507
Wikidata Q27270278
properties
Molar mass 263.61 g / mol g mol −1
Physical state

firmly

density

1.41 g cm −3

Melting point

124-126 ° C

boiling point

129-131 ° C (13 hPa)

Vapor pressure

1 hPa (20 ° C)

solubility
  • slightly soluble in water (6.9 g / l)
  • soluble in most organic solvents
safety instructions
GHS labeling of hazardous substances
07 - Warning

Caution

H and P phrases H: 319
P: 305 + 351 + 338
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Zinc acetylacetonate is a chemical compound from the group of acetylacetonates .

Extraction and presentation

Zinc acetylacetonate can be obtained by reacting zinc sulfate with acetylacetone and sodium hydroxide .

properties

Zinc acetylacetonate is a crystalline solid that is sparingly soluble in water. The monomer which has the monoclinic space group C 2 / c (space group no. 15) can be crystallized by sublimation . The trimer with the monoclinic space group C 2 (space group no. 5) was also obtained by sublimation . Crystal structures of the monohydrate and dihydrate are also known. Template: room group / 15 Template: room group / 5

use

Zinc acetylacetonate is used as a hydrate for the production of magnetic (Zn, Fe) Fe 2 O 4 films, zinc oxide and as a catalyst in organic chemistry.

Individual evidence

  1. a b c d e f g h i Data sheet Zinc (II) acetylacetonate, Zinc (II) acetylacetonate for synthesis from Sigma-Aldrich , accessed on May 12, 2019 ( PDF ).
  2. a b M. J. Bennett, FA Cotton, R. Eiss: The crystal and molecular structure of trimeric bis (acetylacetonato) zinc (II). In: Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry. 24, 1968, p. 904, doi : 10.1107 / S0567740868003390 .
  3. a b c S. Barta, Nancy & Stille, John. (2001). e-EROS Encyclopedia of Reagents for Organic Synthesis. doi : 10.1002 / 047084289X.rb097 .
  4. ^ W. Clegg: Private Communication . In: CSD Communication . 2016, doi : 10.5517 / ccdc.csd.cc1mcf4k .
  5. H. Montgomery, EC Lingafelter: The crystal structure of monoaquobisacetylacetonatozinc . In: Acta Crystallographica . tape 16 , no. 8 , 1963, pp. 748-752 , doi : 10.1107 / S0365110X6300195X .
  6. P. Harbach, H.-W. Lerner, M. Bolte: Diaquadiacetylacetonatozinc (II) . In: Acta Crystallographica Section E . tape 59 , no. 9 , 2003, p. m724-m725 , doi : 10.1107 / S1600536803015848 .
  7. Data sheet Zinc acetylacetonate hydrate, 99.995% trace metals basis from Sigma-Aldrich , accessed on May 13, 2019 ( PDF ).
  8. Yoichi Inubushi, Ryoji Takami et al. a .: Mechanism of Formation of Nanocrystalline ZnO Particles through the Reaction of Zn (acac) 2 with NaOH in EtOH. In: Journal of Colloid and Interface Science. 200, 1998, p. 220, doi : 10.1006 / jcis.1997.5354 .