Names | |
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Other names Gadolinium monophosphide, phosphanylidynegadolinium | |
Identifiers | |
3D model (JSmol) | |
EC Number |
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PubChem CID | |
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Properties | |
GdP | |
Molar mass | 188.22 g·mol−1 |
Appearance | crystals |
Density | 6.68 g/cm3 |
Structure | |
Cubic | |
Fm3m | |
Related compounds | |
Other anions | Gadolinium nitride Gadolinium arsenide Gadolinium antimonide Gadolinium bismuthide |
Other cations | Europium phosphide Terbium phosphide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). |
Gadolinium phosphide is an inorganic compound of gadolinium and phosphorus with the chemical formula GdP. [1] [2]
Gadolinium phosphide can be obtained by reacting gadolinium and phosphorus at high temperature, and single crystals can be obtained by mineralization. [3]
GdP has a NaCl-structure and transforms to a CsCl-structure at 40 GPa. [4]
GdP forms crystals of a cubic system, space group Fm3m. [5] [6]
Gadolinium phosphide is antiferromagnetic.[ citation needed ]
The compound is a semiconductor used in high power, high frequency applications and in laser diodes. [1] [7]
Gadolinium is a chemical element; it has symbol Gd and atomic number 64. Gadolinium is a silvery-white metal when oxidation is removed. It is a malleable and ductile rare-earth element. Gadolinium reacts with atmospheric oxygen or moisture slowly to form a black coating. Gadolinium below its Curie point of 20 °C (68 °F) is ferromagnetic, with an attraction to a magnetic field higher than that of nickel. Above this temperature it is the most paramagnetic element. It is found in nature only in an oxidized form. When separated, it usually has impurities of the other rare earths because of their similar chemical properties.
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.
Titanium(III) phosphide (TiP) is an inorganic chemical compound of titanium and phosphorus. Normally encountered as a grey powder, it is a metallic conductor with a high melting point. It is not attacked by common acids or water. 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. Titanium phosphide is classified as a "metal-rich phosphide", where extra valence electrons from the metal are delocalised.
Oxyphosphides are chemical compounds formally containing the group PO, with one phosphorus and one oxygen atom. The phosphorus and oxygen are not bound together as in phosphates or phosphine oxides, instead they are bound separately to the cations (metals), and could be considered as a mixed phosphide-oxide compound. So a compound with OmPn requires cations to balance a negative charge of 2m+3n. The cations will have charges of +2 or +3. The trications are often rare earth elements or actinides. They are in the category of oxy-pnictide compounds.
A Phosphide chloride is a mixed anion compound containing both phosphide (P3−) and chloride (Cl−) ions.
Phosphide silicides or silicide phosphides or silicophosphides are compounds containing anions composed of silicide (Si4−) and phosphide (P3−). They can be considered as mixed anion compounds. They are distinct from the phosphidosilicates, which have the phosphorus bonded to the silicon. Related compounds include the phosphide carbides, germanide phosphides, nitride silicides, and antimonide silicides.
Scandium phosphide is an inorganic compound of scandium and phosphorus with the chemical formula ScP.
Praseodymium monophosphide is an inorganic compound of praseodymium and phosphorus with the chemical formula PrP. The compound forms crystals.
Samarium(III) 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.
Thulium phosphide is an inorganic compound of thulium and phosphorus with the chemical formula TmP.
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.
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.
Plutonium(III) phosphide is a binary inorganic compound of plutonium and phosphorus with the formula PuP.
Phosphide iodides or iodide phosphides are compounds containing anions composed of iodide (I−) and phosphide (P3−). They can be considered as mixed anion compounds. They are in the category of pnictidehalides. Related compounds include the phosphide chlorides, arsenide iodides antimonide iodides and phosphide bromides.
Phosphide bromides or bromide phosphides are compounds containing anions composed of bromide (Br−) and phosphide (P3−) anions. Usually phosphorus is covalently connected into more complex structures. They can be considered as mixed anion compounds. They are in the category of pnictidehalides. Related compounds include the phosphide chlorides, phosphide iodides, nitride bromides, arsenide bromides, and antimonide bromides.
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.
Arsenic monophosphide, also called arsenic phosphide, is an inorganic compound with the chemical formula AsP. Containing only arsenic and phosphorus, this material is classified as a binary phosphide as well as an interpnictogen. Ratios of arsenic to phosphorus are not fixed and can vary. Depending on the ratio, the band gap changes.
Zirconium monophosphide is a binary inorganic compound of zirconium metal and phosphorus with the chemical formula ZrP.