Hafnium acetylacetonate
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| Names | |
|---|---|
| IUPAC name
hafnium(4+); (Z)-4-oxopent-2-en-2-olate | |
| Other names
Hafnium acetylacetonate | |
| Identifiers | |
| 17475-67-1 | |
| |
| Jmol-3D images | Image |
| PubChem | 21953595 |
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| Properties | |
| C20H28HfO8 | |
| Molar mass | 574.93 |
| Appearance | White to off-white powder |
| Density | 1.42 g/cm3 |
| Melting point | 193 °C (379 °F; 466 K) (decomposes) |
| Boiling point | 82 °C (180 °F; 355 K) |
| Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa) | |
| Infobox references | |
Hafnium acetylacetonate, also known as Hf(acac)4, is a coordination compound with formula Hf(C5H7O2)4. This white solid is the main hafnium complex of acetylacetonate. The molecule has D2 symmetry. It is prepared from hafnium tetrachloride and acetylacetone, and base. Zr(acac)4 is very similar in structure and properties.[2]
Uses
Along with titanium tetrabutoxide (TBT), hafnium acetylacetonate serves as a catalyst for the production of poly(butylene terephthalate).[3]
References
- ↑ "Hafnium Acetylacetonate". American Elements. Retrieved 2015-04-05.
- ↑ Zherikova, K. V.; Morozova, N. B.; Kuratieva, N. V.; Baidina, I. A.; Igumenov, I. K. (November 2005). "Synthesis and structural investigation of hafnium(IV) complexes with acetylacetone and trifluoroacetylacetone". Journal of Structural Chemistry 46 (6): 1039–1046. doi:10.1007/s10947-006-0239-2.
- ↑ Banach, T.E; Berti, C; Colonna, M; Fiorini, M; Marianucci, E; Messori, M; Pilati, F; Toselli, M (August 2001). "New catalysts for poly(butylene terephthalate) synthesis". Polymer 42 (18): 7511–7516. doi:10.1016/S0032-3861(01)00219-1.
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