Tellurium iodide is an inorganic compound with the formula TeI. Two forms are known. Their structures differ from the other monohalides of tellurium. There are three subiodides of tellurium, α-TeI, β-TeI, and Te2I, and one tellurium tetraiodide.[2]
TeI is a gray solid formed by the hydrothermal reaction of tellurium metal and iodine in hydroiodic acid. When this reaction is conducted near 270 °C gives the α-TeI, which is triclinic. When the same mixture is heated to 150 °C, one obtains the metastable monoclinic phase β-TeI.[3] The compounds are related structurally to Te2I (see ditellurium bromide), but the additional iodide groups do not bridge to other Te centers.
The corresponding monochloride and monobromide are molecular compounds with the formula Te2X2.[2]
Tellurium diiodideEdit
Although TeI2 has not been isolated in bulk, complexes of the type TeI2(thiourea)2 are well characterized. These complexes precipitate upon treatment of aqueous solutions of the related tellurium dibromide complex with sodium iodide.[4]
^ abZhengtao Xu "Recent Developments in Binary Halogen–Chalcogen Compounds, Polyanions and Polycations" in Handbook of Chalcogen Chemistry: New Perspectives in Sulfur, Selenium and Tellurium, Francesco Devillanova, Editor, 2006, RSC. pp. 381-416. Royal Society doi:10.1039/9781847557575-00455
^R. Kniep, D. Mootz, A. Rabenau "Zur Kenntnis der Subhalogenide des Tellurs" Zeitschrift für anorganische und allgemeine Chemie 1976, Volume 422, pages 17–38. doi:10.1002/zaac.19764220103
^Foss, Olav; Hauge, Sverre (1961). "Complexes of Divalent Tellurium with Thiourea". Acta Chemica Scandinavica. 15: 1615–1616. doi:10.3891/acta.chem.scand.15-1615.
^Foss, Olav; Maartmann-Moe, Knut (1987). "Complexes of Tellurium Dichloride, Dibromide and Diiodide with Thiourea and Tetramethylselenourea, TeL2X2. X-Ray Crystal Structures". Acta Chemica Scandinavica. 41a: 121–129. doi:10.3891/acta.chem.scand.41a-0121.
August 25, 2023
tellurium, monoiodide, tellurium, iodide, inorganic, compound, with, formula, forms, known, their, structures, differ, from, other, monohalides, tellurium, there, three, subiodides, tellurium, te2i, tellurium, tetraiodide, tellurium, iodide, identifierscas, nu. Tellurium iodide is an inorganic compound with the formula TeI Two forms are known Their structures differ from the other monohalides of tellurium There are three subiodides of tellurium a TeI b TeI and Te2I and one tellurium tetraiodide 2 Tellurium iodide IdentifiersCAS Number 12600 42 9 Y3D model JSmol Interactive imageChemSpider 103867644TeI2 9146156PubChem CID 92025674TeI2 10970946InChI InChI 1S ITe c1 2Key PNRYLQGKCSQOGH UHFFFAOYSA NSMILES Te IPropertiesChemical formula TeIAppearance gray solidHazardsGHS labelling 1 PictogramsSignal word WarningHazard statements H302 H312 H332Precautionary statements P261 P264 P270 P271 P280 P301 P312 P302 P352 P304 P312 P304 P340 P312 P322 P330 P363 P501Related compoundsOther anions ditellurium bromideOther cations selenium monochlorideRelated compounds tellurium tetraiodideExcept where otherwise noted data are given for materials in their standard state at 25 C 77 F 100 kPa Infobox referencesPreparation and properties EditTeI is a gray solid formed by the hydrothermal reaction of tellurium metal and iodine in hydroiodic acid When this reaction is conducted near 270 C gives the a TeI which is triclinic When the same mixture is heated to 150 C one obtains the metastable monoclinic phase b TeI 3 The compounds are related structurally to Te2I see ditellurium bromide but the additional iodide groups do not bridge to other Te centers The corresponding monochloride and monobromide are molecular compounds with the formula Te2X2 2 Tellurium diiodide EditAlthough TeI2 has not been isolated in bulk complexes of the type TeI2 thiourea 2 are well characterized These complexes precipitate upon treatment of aqueous solutions of the related tellurium dibromide complex with sodium iodide 4 Structure of TeI2 thiourea 2 5 References Edit GHS PubChem a b Zhengtao Xu Recent Developments in Binary Halogen Chalcogen Compounds Polyanions and Polycations in Handbook of Chalcogen Chemistry New Perspectives in Sulfur Selenium and Tellurium Francesco Devillanova Editor 2006 RSC pp 381 416 Royal Society doi 10 1039 9781847557575 00455 R Kniep D Mootz A Rabenau Zur Kenntnis der Subhalogenide des Tellurs Zeitschrift fur anorganische und allgemeine Chemie 1976 Volume 422 pages 17 38 doi 10 1002 zaac 19764220103 Foss Olav Hauge Sverre 1961 Complexes of Divalent Tellurium with Thiourea Acta Chemica Scandinavica 15 1615 1616 doi 10 3891 acta chem scand 15 1615 Foss Olav Maartmann Moe Knut 1987 Complexes of Tellurium Dichloride Dibromide and Diiodide with Thiourea and Tetramethylselenourea TeL2X2 X Ray Crystal Structures Acta Chemica Scandinavica 41a 121 129 doi 10 3891 acta chem scand 41a 0121 Retrieved from https en wikipedia org w index php title Tellurium monoiodide amp oldid 1152470962, wikipedia, wiki, book, books, library,
