Thallium (I) triiodide

Crystal structure
	__ Tl + __ I 1 / 3−
Crystal system	orthorhombic
Space group	Pnma (No. 62)
Lattice parameters	a = 10.599 Å , b = 6.419 Å, c = 9.436 Å
General
Surname	Thallium (I) triiodide
other names	Thallium triiodide; Thallium (I) triiodide;
Ratio formula	TlI 3
Brief description	black solid
External identifiers / databases
Wikidata	Q2059737
properties
Molar mass	585.2 g mol −1
Physical state	firmly
solubility	almost insoluble in water; soluble in methanol;
safety instructions
GHS hazard labeling ; no classification available
GHS hazard labeling ; no classification available
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Thallium (I) triiodide is an inorganic chemical compound of thallium from the group of iodides .

Extraction and presentation

Thallium (I) triiodide can be obtained by reacting thallium (I) iodide with iodine in boiling methanol .

{\ displaystyle {\ ce {TlI + I2 -> TlI3}}}

It can also be obtained by reacting thallium (I) iodide, iodine and hydrogen iodide .

properties

Thallium (I) triiodide is a black solid that is insoluble in water. In the solid state, its structure corresponds to TlI-I ₂ or Tl ⁺ [I ₃ ] ^- , but dissolved in methanol TlI ₃ and should therefore be more precisely referred to as thallium (I) triiodide instead of thallium (III) iodide in the solid state. The portion of iodine that exceeds thallium (I) iodide is split off by water, ethanol , ether, carbon tetrachloride or a potassium iodide solution. Its orthorhombic crystal structure with the space group Pnma (space group no. 62) is isomorphic to that of rubidium triiodide . Template: room group / 62

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g Georg Brauer (Ed.), With the collaboration of Marianne Baudler u. a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume I, Ferdinand Enke, Stuttgart 1975, ISBN 3-432-02328-6 , p. 882.
↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
^ Sharpe AG: 401. Thallium tri-iodide and related compounds. In: Journal of the Chemical Society (Resumed). 1952, p. 2165, doi : 10.1039 / JR9520002165 .
^ Ronald Rich: Inorganic Reactions in Water . Springer, 2007, ISBN 3-540-73962-9 , pp. 323 ( limited preview in Google Book search).
↑ Simon Aldridge, Anthony J. Downs: The Group 13 Metals Aluminum, Gallium, Indium and Thallium: Chemical ... John Wiley & Sons, 2011, ISBN 0-470-97668-3 , pp. 318 ( limited preview in Google Book search).
↑ KF Tebbe, U. Georgy: The crystal structures of rubidium triiodide and thallium triiodide. In: Acta Crystallographica Section C Crystal Structure Communications. 42, pp. 1675-1678, doi : 10.1107 / S0108270186090972 .

[brauer-1] ↑ ^a ^b ^c ^d ^e ^f ^g Georg Brauer (Ed.), With the collaboration of Marianne Baudler u. a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume I, Ferdinand Enke, Stuttgart 1975, ISBN 3-432-02328-6 , p. 882.

[NV-2] This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.

[DOI10.1039/JR9520002165-3] Sharpe AG: 401. Thallium tri-iodide and related compounds. In: Journal of the Chemical Society (Resumed). 1952, p. 2165, doi : 10.1039 / JR9520002165 .

[Ronald_Rich-4] Ronald Rich: Inorganic Reactions in Water . Springer, 2007, ISBN 3-540-73962-9 , pp. 323 ( limited preview in Google Book search).

[Simon_Aldridge,_Anthony_J._Downs-5] Simon Aldridge, Anthony J. Downs: The Group 13 Metals Aluminum, Gallium, Indium and Thallium: Chemical ... John Wiley & Sons, 2011, ISBN 0-470-97668-3 , pp. 318 ( limited preview in Google Book search).

[DOI10.1107/S0108270186090972-6] KF Tebbe, U. Georgy: The crystal structures of rubidium triiodide and thallium triiodide. In: Acta Crystallographica Section C Crystal Structure Communications. 42, pp. 1675-1678, doi : 10.1107 / S0108270186090972 .