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Titanium(III) phosphide
Names
	Other names titanium monophosphide
Identifiers
CAS Number	12037-65-9 ;
3D model (JSmol)	Interactive image;
ChemSpider	74768;
ECHA InfoCard	100.031.680
EC Number	234-862-6;
PubChem CID	82856;
CompTox Dashboard (EPA)	DTXSID801014254 ;
	InChI InChI=1S/P.Ti Key: ADDWXBZCQABCGO-UHFFFAOYSA-N;
	SMILES P#[Ti];
Properties
Chemical formula	TiP
Molar mass	78.841 g/mol
Appearance	gray crystals
Density	4.08 g/cm3, solid
Melting point	>1400°C
Structure
Crystal structure	hexagonal
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

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

^ ^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

[Perry-1] D.L. Perry S.L. Phillips (1995) Handbook of inorganic compounds CRC Press ISBN 0-8493-8671-3

[Schnering-2] 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

[3] Hydrogen absorption in Ti₃P Halter U., Mrowietz M., Weiss A Journal of the less-common metals 1986 118 343-348

[4] 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

[5] 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

[6] Crystal Structure Refinement of Ti₅P₃ Carrillo C W., Lundström T Acta Chemica Scandinavica, Series A: Physical and Inorganic Chemistry 1980 34 415-419

[7] 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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