Titanium(III) phosphide
| Names | |
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| Other names
titanium monophosphide
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| Identifiers | |
3D model (JSmol)
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| ChemSpider | |
| ECHA InfoCard | 100.031.680 |
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PubChem CID
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CompTox Dashboard (EPA)
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| Properties | |
| TiP | |
| Molar mass | 78.841 g/mol |
| Appearance | gray crystals |
| Density | 4.08 g/cm3, solid [1] |
| Melting point | >1400°C [1] |
| Structure | |
| hexagonal | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Titanium(III) phosphide (TiP) is an inorganic chemical compound of titanium and phosphorus. Normally encountered as a grey powder,[1] it is a metallic conductor with a high melting point.[2] It is not attacked by common acids or water.[1] Its physical properties stand in contrast to the group 1 and group 2 phosphides that contain the P3− anion (such as Na3P), which are not metallic and are readily hydrolysed.[2] Titanium phosphide is classified as a "metal-rich phosphide", where extra valence electrons from the metal are delocalised.[2]
Titanium phosphide can be prepared by the reaction of TiCl4 and PH3.[1]
There are other titanium phosphide phases, including Ti3P,[3] Ti2P,[4] Ti7P4,[5] Ti5P3,[6] and Ti4P3.[7]
Titanium phosphide should not be confused with titanium phosphate or titanium isopropoxide, both of which are sometimes known by the acronym TIP.
References
[edit]- ^ a b c d e D.L. Perry S.L. Phillips (1995) Handbook of inorganic compounds CRC Press ISBN 0-8493-8671-3
- ^ a b c H.G. Von Schnering, W. Hönle Phosphides - Solid state chemistry Encyclopedia of Inorganic Chemistry Ed. R. Bruce King (1994) John Wiley & Sons ISBN 0-471-93620-0
- ^ Hydrogen absorption in Ti3P Halter U., Mrowietz M., Weiss A Journal of the less-common metals 1986 118 343-348
- ^ Structure of Ti2P solved by three-dimensional electron diffraction data collected with the precession technique and high-resolution electron microscopy M. Gemmi, X. D. Zou, S. Hovmöller, A. Migliori, M. Vennström and Y. Andersson Acta Crystallogr. (2003). A59, 117-126 doi:10.1107/S0108767302022559 PMID 12604849
- ^ New Phases in the Ti-P and Ti-Cu-P Systems, Carrillo C W., Lundström T Acta Chem.Scand., Series A: (1979), 33, 401-402
- ^ Crystal Structure Refinement of Ti5P3 Carrillo C W., Lundström T Acta Chemica Scandinavica, Series A: Physical and Inorganic Chemistry 1980 34 415-419
- ^ Phase Relationships in the Ti-P System with some Notes on the Crystal Structures of TiP2 and ZrP2, Snell P.O, Acta Chem. Scand. 1968 22 1942-1952
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