Indium(I) chloride (also indium monochloride) is the chemical compound with the formula InCl. Indium monochloride occurs as a yellow cubic form below 120 °C and above this temperature as a red orthorhombic form.[2]
InCl is one of three known
indium chlorides.
Synthesis and structure
InCl can be prepared by heating indium metal with indium trichloride in a sealed tube.[3][4]
The relatively high energy level of the 5s electrons of the indium center make InCl susceptible to oxidation as well as disproportionation into In(0) and
InCl3.[2]Tetrahydrofuran (THF) appears to facilitate the disproptionation of InCl as well as other indium(I) halides.[2]
History
Indium(I) chloride was first isolated in 1926 as part of an investigation on the compounds formed between indium and chlorine.[7]
^Van Der Vorst, C.P.J.M.; Maaskant, W.J.A. (1980). "Stereochemically active (5s)2 Lone Pairs in the Structures of α-InCl and β-InCl". Journal of Solid State Chemistry. 34 (3): 301–313.
doi:
10.1016/0022-4596(80)90428-4.
^Van Der Vorst, C. P. J. M.; Verschoor, G. C.; Maaskant, W. J. A. (1978). "The Structures of Yellow and Red Indium Monochloride". Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry. 34 (11): 3333–3335.
Bibcode:
1978AcCrB..34.3333V.
doi:
10.1107/S056774087801081X.
^Klemm, Wilhelm (1926). "Messungen an Indiumhalogeniden I" [Measurements on indium halides I]. Zeitschrift für Anorganische und Allgemeine Chemie. 152: 252–266.
doi:
10.1002/zaac.19261520128.