Dysprosium(II) iodide

Last updated
Dysprosium(II) iodide
Kristallstruktur Cadmiumchlorid.png
Identifiers
3D model (JSmol)
ECHA InfoCard 100.151.507 OOjs UI icon edit-ltr-progressive.svg
EC Number
  • 622-765-5
PubChem CID
  • InChI=1S/Dy.2HI/h;2*1H/p-2
    Key: SSDFPWIJYIKUFK-UHFFFAOYSA-L
  • [I-].[I-].[Dy+2]
Properties
DyI2
Molar mass 416.309 g·mol−1
Appearancedark purple-black solid [1]
Melting point 659 °C [1]
Hazards
GHS labelling: [2]
GHS-pictogram-exclam.svg
Warning
H315, H319, H335
P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, P501
Related compounds
Other anions
dysprosium(II) chloride
dysprosium(II) bromide
Related compounds
 dysprosium(III) iodide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Dysprosium iodide is an iodide of dysprosium with the chemical formula DyI2.

Contents

Preparation

Dysprosium(II) iodide can be produced by reducing dysprosium(III) iodide with metallic dysprosium under a vacuum at 800 to 900 °C: [1]

Dy + 2 DyI3 → 3 DyI2

It can also be formed by the reaction of dysprosium and mercury(II) iodide: [1]

Dy + HgI2 → DyI2 + Hg

It can also be formed by the direct reaction of dysprosium and iodine. [3]

Dy + I2 → DyI2

Properties

Dysprosium(II) iodide is a dark purple-black solid that is easily deliquescent and can only be stored in a dry inert gas or a vacuum. In the air, it will absorb moisture and become a hydrate, but they are unstable and will quickly convert into iodide oxides and release hydrogen gas. This process occurs faster in the presence of water. This compound has the same crystal structure as cadmium chloride. [1] It can form complexes with tetrahydrofuran, butanol and phenol. [3]

Uses

The reaction between dysprosium(II) iodide and silicon tetrachloride produces trichlorosilyl radicals, which can catalyze the trimerization of alkynes. [4] [5]

Related Research Articles

<span class="mw-page-title-main">Dysprosium</span> Chemical element, symbol Dy and atomic number 66

Dysprosium is a chemical element; it has symbol Dy and atomic number 66. It is a rare-earth element in the lanthanide series with a metallic silver luster. Dysprosium is never found in nature as a free element, though, like other lanthanides, it is found in various minerals, such as xenotime. Naturally occurring dysprosium is composed of seven isotopes, the most abundant of which is 164Dy.

<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.

The Simmons–Smith reaction is an organic cheletropic reaction involving an organozinc carbenoid that reacts with an alkene to form a cyclopropane. It is named after Howard Ensign Simmons, Jr. and Ronald D. Smith. It uses a methylene free radical intermediate that is delivered to both carbons of the alkene simultaneously, therefore the configuration of the double bond is preserved in the product and the reaction is stereospecific.

The azide-alkyne Huisgen cycloaddition is a 1,3-dipolar cycloaddition between an azide and a terminal or internal alkyne to give a 1,2,3-triazole. Rolf Huisgen was the first to understand the scope of this organic reaction. American chemist Karl Barry Sharpless has referred to this cycloaddition as "the cream of the crop" of click chemistry and "the premier example of a click reaction".

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

Nickel(II) iodide is an inorganic compound with the formula NiI2. This paramagnetic black solid dissolves readily in water to give bluish-green solutions, from which crystallizes the aquo complex [Ni(H2O)6]I2 (image above). This bluish-green colour is typical of hydrated nickel(II) compounds. Nickel iodides find some applications in homogeneous catalysis.

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

Mercury(II) iodide is a chemical compound with the molecular formula HgI2. It is typically produced synthetically but can also be found in nature as the extremely rare mineral coccinite. Unlike the related mercury(II) chloride it is hardly soluble in water (<100 ppm).

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

Cobalt(II) iodide or cobaltous iodide are the inorganic compounds with the formula CoI2 and the hexahydrate CoI2(H2O)6. These salts are the principal iodides of cobalt.

<span class="mw-page-title-main">Vinyl iodide functional group</span>

In organic chemistry, a vinyl iodide functional group is an alkene with one or more iodide substituents. Vinyl iodides are versatile molecules that serve as important building blocks and precursors in organic synthesis. They are commonly used in carbon-carbon forming reactions in transition-metal catalyzed cross-coupling reactions, such as Stille reaction, Heck reaction, Sonogashira coupling, and Suzuki coupling. Synthesis of well-defined geometry or complexity vinyl iodide is important in stereoselective synthesis of natural products and drugs.

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

Europium(II) iodide is the iodide salt of divalent europium cation.

<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 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.

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

Dysprosium(III) bromide is an inorganic compound of bromine and dysprosium, with the chemical formula of DyBr3.

<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">Gadolinium(III) iodide</span> Chemical compound

Gadolinium(III) iodide is an iodide of gadolinium, with the chemical formula of GdI3. It is a yellow, highly hygroscopic solid with a bismuth(III) iodide-type crystal structure. In air, it quickly absorbs moisture and forms hydrates. The corresponding oxide iodide is also readily formed at elevated temperature.

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

Thulium(III) iodide is an iodide of thulium, with the chemical formula of TmI3. Thulium(III) iodide is used as a component of metal halide lamps.

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

Lanthanum diiodide is an iodide of lanthanum, with the chemical formula of LaI2. It is an electride, actually having a chemical formula of La3+[(I−)2e−].

<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.

<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 4 5 Handbuch der präparativen anorganischen Chemie. 1 (3., umgearb. Aufl ed.). Stuttgart: Enke. 1975. ISBN   978-3-432-02328-1.
  2. ↑ "Dysprosium(II) iodide". pubchem.ncbi.nlm.nih.gov.
  3. 1 2 Karl A. Jr. Gschneidner, Jean-Claude Bunzli, Vitalij K. Pecharsky (2009). Handbook on the Physics and Chemistry of Rare Earths. Elsevier. p. 247. ISBN   978-008093257-6.{{cite book}}: CS1 maint: multiple names: authors list (link)
  4. ↑ Sigma-Aldrich Co. , product no. 652423 .
  5. ↑ Zhu, Zhenyu; Wang, Chuanfeng; Xiang, Xu; Pi, Chengfu; Zhou, Xigeng (2006). "DyI2 initiated mild and highly selective silyl radical-catalyzed cyclotrimerization of terminal alkynes and polymerization of MMA". Chemical Communications (19): 2066–2068. doi:10.1039/b602883g. ISSN   1359-7345. PMID   16767277.
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