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Phosphine is a colorless, flammable, highly toxic compound with the chemical formula PH3, classed as a pnictogen hydride. Pure phosphine is odorless, but technical grade samples have a highly unpleasant odor like rotting fish, due to the presence of substituted phosphine and diphosphane. With traces of P2H4 present, PH3 is spontaneously flammable in air (pyrophoric), burning with a luminous flame. Phosphine is a highly toxic respiratory poison, and is immediately dangerous to life or health at 50 ppm. Phosphine has a trigonal pyramidal structure.
Sodium phosphide is the inorganic compound with the formula Na3P. It is a black solid. It is often described as Na+ salt of the P3− anion. Na3P is a source of the highly reactive phosphide anion. It should not be confused with sodium phosphate, Na3PO4.
Strontium phosphide is an inorganic compound of strontium and phosphorus with the chemical formula Sr
3P
2. The compound looks like black crystalline material.
Triphosphorus pentanitride is an inorganic compound with the chemical formula P3N5. Containing only phosphorus and nitrogen, this material is classified as a binary nitride. While it has been investigated for various applications this has not led to any significant industrial uses. It is a white solid, although samples often appear colored owing to impurities.
A transition metal phosphido complex is a coordination complex containing a phosphido ligand (R2P, where R = H, organic substituent). With two lone pairs on phosphorus, the phosphido anion (R2P−) is comparable to an amido anion (R2N−), except that the M-P distances are longer and the phosphorus atom is more sterically accessible. For these reasons, phosphido is often a bridging ligand. The -PH2 ion or ligand is also called phosphanide or phosphido ligand.
A Phosphide chloride is a mixed anion compound containing both phosphide (P3−) and chloride (Cl−) ions.
Scandium phosphide is an inorganic compound of scandium and phosphorus with the chemical formula ScP.
Lutetium phosphide is an inorganic compound of lutetium and phosphorus with the chemical formula LuP. The compound forms dark crystals, does not dissolve in water.
Praseodymium phosphide is an inorganic compound of praseodymium and phosphorus with the chemical formula PrP. The compound forms crystals.
Samarium phosphide is an inorganic compound of samarium and phosphorus with the chemical formula SmP.
Lanthanum phosphide is an inorganic compound of lanthanum and phosphorus with the chemical formula LaP.
Bismuth phosphide is an inorganic compound of bismuth and phosphorus with the chemical formula BiP.
Holmium phosphide is a binary inorganic compound of holmium and phosphorus with the chemical formula HoP. The compound forms dark crystals and does not dissolve in water.
Erbium phosphide is a binary inorganic compound of erbium and phosphorus with the chemical formula ErP.
Dysprosium phosphide is an inorganic compound of dysprosium and phosphorus with the chemical formula DyP.
Terbium phosphide is an inorganic compound of terbium and phosphorus with the chemical formula TbP.
Gadolinium phosphide is an inorganic compound of gadolinium and phosphorus with the chemical formula GdP.
Terbium compounds are compounds formed by the lanthanide metal terbium (Tb). Terbium generally exhibits the +3 oxidation state in these compounds, such as in TbCl3, Tb(NO3)3 and Tb(CH3COO)3. Compounds with terbium in the +4 oxidation state are also known, such as TbO2 and BaTbF6. Terbium can also form compounds in the 0, +1 and +2 oxidation states.
Erbium compounds are compounds containing the element erbium (Er). These compounds are usually dominated by erbium in the +3 oxidation state, although the +2, +1 and 0 oxidation states have also been reported.
Ytterbium compounds are chemical compounds that contain the element ytterbium (Yb). The chemical behavior of ytterbium is similar to that of the rest of the lanthanides. Most ytterbium compounds are found in the +3 oxidation state, and its salts in this oxidation state are nearly colorless. Like europium, samarium, and thulium, the trihalides of ytterbium can be reduced to the dihalides by hydrogen, zinc dust, or by the addition of metallic ytterbium. The +2 oxidation state occurs only in solid compounds and reacts in some ways similarly to the alkaline earth metal compounds; for example, ytterbium(II) oxide (YbO) shows the same structure as calcium oxide (CaO).
References
- 1 2 "Thulium Phosphide". American Elements . Retrieved 22 December 2021.
- ↑ Toxic Substances Control Act (TSCA) Chemical Substance Inventory. U.S. Government Printing Office. 1979. p. 86. Retrieved 22 December 2021.
- ↑ Bhajanker, Sanjay; Srivastava, Vipul; Sanyal, Sankar P. (3 June 2013). Structural and mechanical properties of some thulium pnictides under pressure. Recent Trends in Applied Physics and Material Science: Ram 2013. AIP Conference Proceedings. Vol. 1536. pp. 785–786. Bibcode:2013AIPC.1536..785B. doi:10.1063/1.4810462 . Retrieved 22 December 2021.
- ↑ Lin, C. H.; Hwu, R. J.; Sadwick, L. P. (1 November 2001). "Investigation of crystal properties of TmP/GaAs and GaAs/TmP/GaAs heterostructures grown by molecular beam epitaxy". Journal of Materials Research. 16 (11): 3266–3273. Bibcode:2001JMatR..16.3266L. doi:10.1557/JMR.2001.0450. S2CID 137141908 . Retrieved 22 December 2021.
- ↑ "mp-7171: TmP (cubic, Fm-3m, 225)". materialsproject.org . Retrieved 22 December 2021.
- ↑ Takafumi, Adachi; Ichimin, Shirotani; Osamu, Shimomura (1999). "Structural phase transitions of rare earth monophosphides with NaCl-type structure under high pressures". Nippon Kessho Gakkai-Shi (in Japanese). 41 (2). Retrieved 22 December 2021.