Samarium(III) iodide

Last updated
Samarium(III) iodide
Names
Other names
Triiodosamarium, Samarium triiodide
Identifiers
3D model (JSmol)
ECHA InfoCard 100.034.048 OOjs UI icon edit-ltr-progressive.svg
PubChem CID
  • InChI=1S/3HI.Sm/h3*1H;/q;;;+3/p-3
    Key: XQKBFQXWZCFNFF-UHFFFAOYSA-K
  • I[Sm](I)I
Properties
SmI
3
Molar mass 531.1
Appearanceorange-yellow crystals
Melting point 850 °C (1,560 °F; 1,120 K)
decomposes in water
Hazards
GHS labelling:
Danger
Related compounds
Related compounds
 Samarium(II) iodide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Samarium(III) iodide is an inorganic compound, a salt of samarium and hydroiodic acid with the chemical formula SmI
3. [1] [2]

Contents

Synthesis

Samarium(III) iodide is prepared by the reaction of metallic samarium and iodine: [3]

Properties

Samarium(III) iodide is a yellow powder that is unstable in air and decomposes in water (hydrolysis). [1] When heated with metallic samarium, it forms samarium diiodide: [4]

Reduction by hydrogen also affords samarium diiodide:

Applications

The compound is commercially available and used in organic reactions as a catalyst. [1]

Related Research Articles

<span class="mw-page-title-main">Samarium(II) iodide</span> Chemical compound

Samarium(II) iodide is an inorganic compound with the formula SmI2. When employed as a solution for organic synthesis, it is known as Kagan's reagent. SmI2 is a green solid and solutions are green as well. It is a strong one-electron reducing agent that is used in organic synthesis.

<span class="mw-page-title-main">Triiodide</span> Ion

In chemistry, triiodide usually refers to the triiodide ion, I−
3. This anion, one of the polyhalogen ions, is composed of three iodine atoms. It is formed by combining aqueous solutions of iodide salts and iodine. Some salts of the anion have been isolated, including thallium(I) triiodide (Tl+[I3]−) and ammonium triiodide ([NH4]+[I3]−). Triiodide is observed to be a red colour in solution.

<span class="mw-page-title-main">Tellurium tetraiodide</span> Chemical compound

Tellurium tetraiodide (TeI4) is an inorganic chemical compound. It has a tetrameric structure which is different from the tetrameric solid forms of TeCl4 and TeBr4. In TeI4 the Te atoms are octahedrally coordinated and edges of the octahedra are shared.

<span class="mw-page-title-main">Thallium triiodide</span> Chemical compound

Thallium triiodide is a chemical compound of thallium and iodine with formula TlI3. Unlike the other thallium trihalides, which contain thallium(III), TlI3 is a thallium(I) salt and contains the triiodide ion, I−
3.

Samarium iodide may refer to:

<span class="mw-page-title-main">Molybdenum(III) iodide</span> Chemical compound

Molybdenum(III) iodide is the inorganic compound with the formula MoI3.

<span class="mw-page-title-main">Chromium(III) iodide</span> Chemical compound

Chromium(III) iodide, also known as chromium triiodide, is an inorganic compound with the formula CrI3. It is a black solid that is used to prepare other chromium iodides.

Cerium(III) iodide (CeI3) is the compound formed by cerium(III) cations and iodide anions.

Neodymium(III) iodide is an inorganic salt of iodine and neodymium with the formula NdI3. Neodymium uses the +3 oxidation state in the compound. The anhydrous compound is a green powdery solid at room temperature.

<span class="mw-page-title-main">Neodymium(II) iodide</span> Chemical compound

Neodymium(II) iodide or neodymium diiodide is an inorganic salt of iodine and neodymium the formula NdI2. Neodymium uses the +2 oxidation state in the compound.

<span class="mw-page-title-main">Praseodymium(III) iodide</span> Chemical compound

Praseodymium(III) iodide is an inorganic salt, consisting of the rare-earth metal praseodymium and iodine, with the chemical formula PrI3. It forms green crystals. It is soluble in water.

<span class="mw-page-title-main">Praseodymium diiodide</span> Chemical compound

Praseodymium diiodide is a chemical compound with the empirical formula of PrI2, consisting of praseodymium and iodine. It is an electride, with the ionic formula of Pr3+(I−)2e−, and therefore not a true praseodymium(II) compound.

<span class="mw-page-title-main">Lanthanum(III) iodide</span> Chemical compound

Lanthanum(III) iodide is an inorganic compound containing lanthanum and iodine with the chemical formula LaI
3.

Europium(III) iodide is an inorganic compound containing europium and iodine with the chemical formula EuI3.

<span class="mw-page-title-main">Lutetium(III) iodide</span> Chemical compound

Lutetium(III) iodide or lutetium iodide is an inorganic compound consisting of iodine and lutetium, with the chemical formula of LuI3.

<span class="mw-page-title-main">Cerium diiodide</span> Chemical compound

Cerium diiodide is an iodide of cerium, with the chemical formula of CeI2.

<span class="mw-page-title-main">Holmium(III) iodide</span> Chemical compound

Holmium(III) iodide is an iodide of holmium, with the chemical formula of HoI3. It is used as a component of metal halide lamps.

Samarium compounds are compounds formed by the lanthanide metal samarium (Sm). In these compounds, samarium generally exhibits the +3 oxidation state, such as SmCl3, Sm(NO3)3 and Sm(C2O4)3. Compounds with samarium in the +2 oxidation state are also known, for example SmI2.

<span class="mw-page-title-main">Ytterbium(II) iodide</span> Chemical compound

Ytterbium(II) iodide is an iodide of ytterbium, with the chemical formula of YbI2. It is a yellow solid.

<span class="mw-page-title-main">Dysprosium(III) iodide</span> Chemical compound

Dysprosium(III) iodide is a binary inorganic compound of dysprosium and iodine with the chemical formula DyI
3.

References

  1. 1 2 3 Zhang, Yuanmin (6 November 2011). "Samarium Triiodide". Synlett . 2011 (11): 1638–1639. doi: 10.1055/s-0030-1260781 .
  2. ↑ "Samarium(III) Iodide". American Elements. American Elements . Retrieved 8 August 2021.
  3. ↑ Molodkin, A. K.; Karagodina, A. M.; Tupolev, V. S.; Dudareva, A. G.; Prokhina, A. G. (1984). "Iodination of samarium and reaction of samarium triiodide with lithium iodide". Zhurnal Neorganicheskoj Khimii (in Russian). 29 (4): 1069–1072. ISSN   0044-457X . Retrieved 8 August 2021.
  4. ↑ Imamoto, Tsuneo; Ono, Mitsumasa (5 March 1987). "The Reaction of Samarium(III) Iodide with Samarium Metal in Tetrahydrofuran, A New Method for the Preparation of Samarium(II) Iodide". Chemistry Letters . 16 (3): 501–502. doi: 10.1246/cl.1987.501 . ISSN   0366-7022.
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