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Phosphine (IUPAC name: phosphane) 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 (P2H4). 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.
In chemistry, a phosphide is a compound containing the P3− ion or its equivalent. Many different phosphides are known, with widely differing structures. Most commonly encountered on the binary phosphides, i.e. those materials consisting only of phosphorus and a less electronegative element. Numerous are polyphosphides, which are solids consisting of anionic chains or clusters of phosphorus. Phosphides are known with the majority of less electronegative elements with the exception of Hg, Pb, Sb, Bi, Te, and Po. Finally, some phosphides are molecular.
Gold(III) chloride, traditionally called auric chloride, is an inorganic compound of gold and chlorine with the molecular formula Au2Cl6. The "III" in the name indicates that the gold has an oxidation state of +3, typical for many gold compounds. It has two forms, the monohydrate (AuCl3·H2O) and the anhydrous form, which are both hygroscopic and light-sensitive solids. This compound is a dimer of AuCl3. This compound has a few uses, such as an oxidizing agent and for catalyzing various organic reactions.
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.
Gold compounds are compounds by the element gold (Au). Although gold is the most noble of the noble metals, it still forms many diverse compounds. The oxidation state of gold in its compounds ranges from −1 to +5, but Au(I) and Au(III) dominate its chemistry. Au(I), referred to as the aurous ion, is the most common oxidation state with soft ligands such as thioethers, thiolates, and organophosphines. Au(I) compounds are typically linear. A good example is Au(CN)−2, which is the soluble form of gold encountered in mining. The binary gold halides, such as AuCl, form zigzag polymeric chains, again featuring linear coordination at Au. Most drugs based on gold are Au(I) derivatives.
In chemistry, crystallography, and materials science, the coordination number, also called ligancy, of a central atom in a molecule or crystal is the number of atoms, molecules or ions bonded to it. The ion/molecule/atom surrounding the central ion/molecule/atom is called a ligand. This number is determined somewhat differently for molecules than for crystals.
Yttrium phosphide is an inorganic compound of yttrium and phosphorus with the chemical formula YP. The compound may be also classified as yttrium(III) phosphide.
A Phosphide chloride is a mixed anion compound containing both phosphide (P3−) and chloride (Cl−) ions.
Lithium phosphide is an inorganic compound of lithium and phosphorus with the chemical formula Li
3P. This dark colored compound is formally the Li+ salt of P3-. It is a hazardous to handle because of its high reactivity toward air.
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.
Terbium phosphide is an inorganic compound of terbium and phosphorus with the chemical formula TbP.
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.
Arsenide iodides or iodide arsenides are compounds containing anions composed of iodide (I−) and arsenide (As3−). They can be considered as mixed anion compounds. They are in the category of pnictidehalides. Related compounds include the arsenide chlorides, arsenide bromides, phosphide iodides, and antimonide iodides.
Alexander Frank Wells, or A. F. Wells, was a British chemist and crystallographer. He is known for his work on structural inorganic chemistry, which includes the description and classification of structural motifs, such as the polyhedral coordination environments, in crystals obtained from X-ray crystallography. His work is summarized in a classic reference book, Structural inorganic chemistry, first appeared in 1945 and has since gone through five editions. In addition, his work on crystal structures in terms of nets have been important and inspirational for the field of metal-organic frameworks and related materials.
Trimolybdenum phosphide is a binary inorganic compound of molybdenum metal and phosphorus with the chemical formula Mo3P.
Diruthenium phosphide is a binary inorganic compound of ruthenium metal and phosphorus with the chemical formula Ru2P.
Tin triphosphide is a binary inorganic compound of tin metal and phosphorus with the chemical formula SnP3.
References
- ↑ Louis, Henry (1894). A Handbook of Gold Milling. Macmillan. p. 40. Retrieved 18 March 2024.
- ↑ Ganzenmuüller, Wilhelm; Gedschold, Hermann; Kotowski, Alfons; Gmelin, Leopold (1954). Gold: Lieferung 3 (in German). Springer-Verlag. p. 728. ISBN 978-3-662-12700-1 . Retrieved 8 April 2024.
- ↑ R. Prins; M. E. Bussell (2012). "Metal Phosphides: Preparation, Characterization and Catalytic Reactivity". Catalysis Letters. 142 (12): 1413–1436. doi:10.1007/s10562-012-0929-7.
- 1 2 Jeitschko, W.; Möller, M. H. (1979-03-01). "The crystal structures of Au 2 P 3 and Au 7 P 10 I, polyphosphides with weak Au–Au interactions". Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry. 35 (3): 573–579. doi:10.1107/S0567740879004180. ISSN 0567-7408.
- ↑ Ramsay, William (1891). A System of Inorganic Chemistry. J. & A. Churchill. p. 557. Retrieved 18 March 2024.
- ↑ Cavazzi, A. (1885). "Action of Phisphine on Auric Chloride". Quarterly Journal of the Chemical Society of London . 48 (2): 875. Retrieved 8 April 2024.
- ↑ Roscoe, Henry Enfield; Schorlemmer, Carl (1898). A Treatise on Chemistry. D. Appleton. p. 413. Retrieved 8 April 2024.
- ↑ Comey, Arthur Messenger (1896). A Dictionary of Chemical Solubilities Inorganic: xx, 515 p. Macmillan & Company. p. 174. Retrieved 8 April 2024.