Magnus's green salt is the inorganic compound with the formula [Pt(NH3)4][PtCl4]. This salt is named after Heinrich Gustav Magnus, who, in the early 1830s, first reported the compound. The compound is a linear chain compound, consisting of a chain of platinum atoms. It is dark green, which is unusual for platinum compounds.
This species has attracted interest in materials chemistry and solid-state physics because of its one-dimensional structure. It contains a chain of alternating [PtCl4]2− anions and [Pt(NH3)4]2+ cations, in which the platinum atoms are separated by 3.25 Å.[1] It is a semiconductor.
Preparationedit
The compound may be prepared by combining aqueous solutions of [Pt(NH3)4]2+ and [PtCl4]2−, which gives a deep green solid precipitate.[2] Under some conditions, this reaction affords a pink polymorph of Magnus's green salt. In this so-called "Magnus's pink salt", the square planar Pt complexes are not stacked.[3]
Related compoundsedit
Magnus's green salt has the same empirical formula as cis-PtCl2(NH3)2 ("Peyrone chloride") and trans-PtCl2(NH3)2.[4] These cis and trans compounds are molecules, whereas Magnus's green salt is a polymer. This difference is manifested by the solubility of the molecular complexes in water, whereas Magnus's green salt is insoluble.
Soluble analogues of Magnus's green salt can be prepared by replacing the ammonia with ethylhexylamine.[5][6]
The corresponding palladium compound ([Pd(NH3)4][PdCl4]) is known as "Vauquelin’s salt".
^Atoji, Masao; Richardson, James W.; Rundle, R. E. (June 1957). "Pt(NH3)4PtCl41". Journal of the American Chemical Society. 79 (12): 3017–3020. doi:10.1021/ja01569a009.
^Keller, R. N.; Moeller, Therald; Quagliano, J. V. (2007). "Tetrammineplatinum(II) Chloride: (Tetrammineplatinous Chloride)". Inorganic Syntheses. pp. 250–253. doi:10.1002/9780470132333.ch80. ISBN978-0-470-13233-3.
^Lucier, Bryan E. G.; Johnston, Karen E.; Xu, Wenqian; Hanson, Jonathan C.; Senanayake, Sanjaya D.; Yao, Siyu; Bourassa, Megan W.; Srebro, Monika; Autschbach, Jochen; Schurko, Robert W. (29 January 2014). "Unravelling the Structure of Magnus' Pink Salt" (PDF). Journal of the American Chemical Society. 136 (4): 1333–1351. doi:10.1021/ja4076277. PMID 24437378.
^Wilson, Justin J.; Lippard, Stephen J. (23 April 2014). "Synthetic Methods for the Preparation of Platinum Anticancer Complexes". Chemical Reviews. 114 (8): 4470–4495. doi:10.1021/cr4004314. PMC3999256. PMID 24283498.
^Caseri, Walter (1 July 2004). "Derivatives of Magnus' Green Salt". Platinum Metals Review. 48 (3): 91–100. doi:10.1595/147106704X1504.
^Bremi, Juliane; Caseri, Walter; Smith, Paul (2001). "A new compound derived from Magnus' green salt: solid state structure and evidence for platinum chains in solution". Journal of Materials Chemistry. 11 (10): 2593–2596. doi:10.1039/b104675f. S2CID 95456246. INIST14086852.
April 14, 2024
magnus, green, salt, inorganic, compound, with, formula, ptcl4, this, salt, named, after, heinrich, gustav, magnus, early, 1830s, first, reported, compound, compound, linear, chain, compound, consisting, chain, platinum, atoms, dark, green, which, unusual, pla. Magnus s green salt is the inorganic compound with the formula Pt NH3 4 PtCl4 This salt is named after Heinrich Gustav Magnus who in the early 1830s first reported the compound The compound is a linear chain compound consisting of a chain of platinum atoms It is dark green which is unusual for platinum compounds Magnus s green salt NamesIUPAC name Tetraammineplatinum II tetrachloroplatinate II IdentifiersCAS Number 13820 46 73D model JSmol Interactive imageChemSpider 141440ECHA InfoCard 100 034 078EC Number 237 501 0PubChem CID 16213091InChI InChI 1S 4ClH 4H2N 2Pt h4 1H 4 1H2 q 4 1 2 2 p 4Key VDZZIFNGBFCNGW UHFFFAOYSA JSMILES NH3 Pt 2 NH3 NH3 NH3 Cl Pt 2 Cl Cl ClPropertiesChemical formula Pt NH3 4 PtCl4 Molar mass 600 09 g molAppearance green solidDensity 3 7 g cm3Melting point 320 C 608 F 593 K Except where otherwise noted data are given for materials in their standard state at 25 C 77 F 100 kPa Y verify what is Y N Infobox references Contents 1 Structure 2 Preparation 3 Related compounds 4 History 5 ReferencesStructure editThis species has attracted interest in materials chemistry and solid state physics because of its one dimensional structure It contains a chain of alternating PtCl4 2 anions and Pt NH3 4 2 cations in which the platinum atoms are separated by 3 25 A 1 It is a semiconductor Preparation editThe compound may be prepared by combining aqueous solutions of Pt NH3 4 2 and PtCl4 2 which gives a deep green solid precipitate 2 Under some conditions this reaction affords a pink polymorph of Magnus s green salt In this so called Magnus s pink salt the square planar Pt complexes are not stacked 3 Related compounds editMagnus s green salt has the same empirical formula as cis PtCl2 NH3 2 Peyrone chloride and trans PtCl2 NH3 2 4 These cis and trans compounds are molecules whereas Magnus s green salt is a polymer This difference is manifested by the solubility of the molecular complexes in water whereas Magnus s green salt is insoluble Soluble analogues of Magnus s green salt can be prepared by replacing the ammonia with ethylhexylamine 5 6 The corresponding palladium compound Pd NH3 4 PdCl4 is known as Vauquelin s salt History editMagnus s green salt was one of the first examples of a metal ammine complex References edit Atoji Masao Richardson James W Rundle R E June 1957 Pt NH3 4PtCl41 Journal of the American Chemical Society 79 12 3017 3020 doi 10 1021 ja01569a009 Keller R N Moeller Therald Quagliano J V 2007 Tetrammineplatinum II Chloride Tetrammineplatinous Chloride Inorganic Syntheses pp 250 253 doi 10 1002 9780470132333 ch80 ISBN 978 0 470 13233 3 Lucier Bryan E G Johnston Karen E Xu Wenqian Hanson Jonathan C Senanayake Sanjaya D Yao Siyu Bourassa Megan W Srebro Monika Autschbach Jochen Schurko Robert W 29 January 2014 Unravelling the Structure of Magnus Pink Salt PDF Journal of the American Chemical Society 136 4 1333 1351 doi 10 1021 ja4076277 PMID 24437378 Wilson Justin J Lippard Stephen J 23 April 2014 Synthetic Methods for the Preparation of Platinum Anticancer Complexes Chemical Reviews 114 8 4470 4495 doi 10 1021 cr4004314 PMC 3999256 PMID 24283498 Caseri Walter 1 July 2004 Derivatives of Magnus Green Salt Platinum Metals Review 48 3 91 100 doi 10 1595 147106704X1504 Bremi Juliane Caseri Walter Smith Paul 2001 A new compound derived from Magnus green salt solid state structure and evidence for platinum chains in solution Journal of Materials Chemistry 11 10 2593 2596 doi 10 1039 b104675f S2CID 95456246 INIST 14086852 Retrieved from https en wikipedia org w index php title Magnus 27s green salt amp oldid 1187651371, wikipedia, wiki, book, books, library,
