Barium acetylacetonate

Barium acetylacetonate
Names
	IUPAC name Barium(2+); (Z)-4-oxopent-2-en-2-olate
Identifiers
CAS Number	12084-29-6 ;
3D model (JSmol)	Interactive image;
ChemSpider	4588876;
ECHA InfoCard	100.031.944
EC Number	235-151-3;
PubChem CID	5486157;
	InChI InChI=1S/2C5H8O2.Ba/c21-4(6)3-5(2)7;/h23,6H,1-2H3;/q;;+2/p-2/b2*4-3-; Key: DJHZYHWLGNJISM-FDGPNNRMSA-L;
	SMILES [Ba+2].O=C(/C=C(\[O-])C)C.[O-]\C(=C/C(=O)C)C;
Properties
Chemical formula	C10H14BaO4
Molar mass	335.545 g·mol−1
Appearance	White solid
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H302, H332
Precautionary statements	P261, P264, P270, P271, P301+P312, P304+P312, P304+P340, P312, P330, P501
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Barium acetylacetonate is a compound with formula Ba(C₅H₇O₂)₂. It is the Ba²⁺ complex of the anion acetylacetonate. The compound is typically encountered as an ill-defined hydrate, which would accord with the high coordination number characteristic of barium.^[1]^[2]

Uses

Structure of gaseous barium acetylacetonate.

Barium acetylacetonate has been examined in metal organic chemical vapour deposition of BaTiO₃ thin films.^[3] The related complex with hexafluoroacetylacetonate Ba(hfa)₂(tetraglyme) has also been investigated. Its formation of a sublimable adduct containing a polyether illustrates the high coordination numbers typical of barium.^[4]

References

^ Paw, Witold; Baum, Thomas H.; Lam, Kin-Chung; Rheingold, Arnold L. (2000). "Low-Melting, Mononuclear Tetrahydrofuran Complexes of M(2,2,6,6-tetramethylheptane-3,5-dionate)2 (M = Ba, Sr) and Related Analogues". Inorganic Chemistry. 39 (9): 2011–2014. doi:10.1021/ic990641z. PMID 11428125.
^ Rossetto, G.; Polo, A.; Benetollo, F.; Porchia, M.; Zanella, P. (1992). "Studies on molecular barium precursors for MOCVD: Synthesis and characterization of barium 2,2,6,6-tetramethyl-3,5-heptanedionate. X-ray crystal structure of [Ba(THD)2·Et2O]2". Polyhedron. 11 (8): 979–985. doi:10.1016/S0277-5387(00)83351-3.
^ Lee, C. H.; Park, S. J. (1990-12-01). "Preparation of ferroelectric BaTiO₃ thin films by metal organic chemical vapour deposition". Journal of Materials Science: Materials in Electronics. 1 (4): 219–224. doi:10.1007/BF00696081. S2CID 101586516.
^ Schulz, Douglas L.; Neumayer, Deborah A.; Marks, Tobin J. (1997). Volatile β-Diketonate Complexes of Calcium(II), Strontium(II), and Barium(II). Inorganic Syntheses. Vol. 31. pp. 1–7. doi:10.1002/9780470132623.ch1. ISBN 9780470132623.

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[1] Paw, Witold; Baum, Thomas H.; Lam, Kin-Chung; Rheingold, Arnold L. (2000). "Low-Melting, Mononuclear Tetrahydrofuran Complexes of M(2,2,6,6-tetramethylheptane-3,5-dionate)2 (M = Ba, Sr) and Related Analogues". Inorganic Chemistry. 39 (9): 2011–2014. doi:10.1021/ic990641z. PMID 11428125.

[2] Rossetto, G.; Polo, A.; Benetollo, F.; Porchia, M.; Zanella, P. (1992). "Studies on molecular barium precursors for MOCVD: Synthesis and characterization of barium 2,2,6,6-tetramethyl-3,5-heptanedionate. X-ray crystal structure of [Ba(THD)2·Et2O]2". Polyhedron. 11 (8): 979–985. doi:10.1016/S0277-5387(00)83351-3.

[BaTiO-3] Lee, C. H.; Park, S. J. (1990-12-01). "Preparation of ferroelectric BaTiO₃ thin films by metal organic chemical vapour deposition". Journal of Materials Science: Materials in Electronics. 1 (4): 219–224. doi:10.1007/BF00696081. S2CID 101586516.

[4] Schulz, Douglas L.; Neumayer, Deborah A.; Marks, Tobin J. (1997). Volatile β-Diketonate Complexes of Calcium(II), Strontium(II), and Barium(II). Inorganic Syntheses. Vol. 31. pp. 1–7. doi:10.1002/9780470132623.ch1. ISBN 9780470132623.

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