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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