Global InformationPentamethyltantalum information
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| Names | |
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| Systematic IUPAC name
pentamethyl-λ5-tantalane | |
| Identifiers | |
CAS Number
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3D model (JSmol)
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PubChem CID
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CompTox Dashboard (EPA)
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InChI
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SMILES
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| Properties | |
Chemical formula
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C5H15Ta |
| Molar mass | 256.123 g·mol−1 |
| Appearance | yellow oil, green solid at −20° |
| Melting point | 0 °C (32 °F; 273 K)[1] |
| Boiling point | decomposes above 25° to methane |
| Solubility | ether, pentane, 2-methylbutane |
| Thermochemistry | |
Std enthalpy of
formation (ΔfH⦵298) |
169.8[2] 213 kJ/mol[3] |
| Related compounds | |
Related compounds
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Pentamethylarsenic Pentamethylbismuth Pentamethylantimony pentabenzyltantalum |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references
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Pentamethyltantalum is a homoleptic organotantalum compound. It has a propensity to explode when it is melted.[4] Its discovery was part of a sequence that led to Richard R. Schrock's Nobel Prize discovery in olefin metathesis.[5]
- ^ Yaws, Carl L. (2015). The Yaws Handbook of Physical Properties for Hydrocarbons and Chemicals: Physical Properties for More Than 54,000 Organic and Inorganic Chemical Compounds, Coverage for C1 to C100 Organics and Ac to Zr Inorganics. Gulf Professional Publishing. p. 87. ISBN 9780128011461.
- ^ Adedeji, Festus A.; Connor, Joseph A.; Skinner, Henry A.; Galyer, Lee; Wilkinson, Geoffrey (1976). "Heat of formation of pentamethylantalum and hexamethyltungsten". Journal of the Chemical Society, Chemical Communications (5): 159. doi:10.1039/C39760000159.
- ^ "Pentamethyl tantalum". webbook.nist.gov.
- ^ Urben, Peter (2013). Bretherick's Handbook of Reactive Chemical Hazards. Academic Press. p. 744. ISBN 9780080523408.
- ^ Cite error: The named reference
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