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449229

Sigma-Aldrich

Iridium

evaporation slug, diam. × L 0.6 cm × 1.2 cm, 99.9% trace metals basis

Synonym(s):

Iridium black

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About This Item

Empirical Formula (Hill Notation):
Ir
CAS Number:
7439-88-5
Molecular Weight:
192.22
MDL number:
MFCD00011062
UNSPSC Code:
12141720
PubChem Substance ID:
24868465
NACRES:
NA.23

Assay

99.9% trace metals basis

form

evaporation slug

resistivity

4.71 μΩ-cm

diam. × L

0.6 cm × 1.2 cm

weight

~7.6 g (one slug)

bp

4130 °C (lit.)

mp

2450 °C (lit.)

density

22.65 g/cm3 (lit.)

SMILES string

[Ir]

InChI

1S/Ir

InChI key

GKOZUEZYRPOHIO-UHFFFAOYSA-N

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Application

  • Single Atom Iridium Decorated Nickel Alloys Supported on Segregated MoO(2) for Alkaline Water Electrolysis.: The study presents an innovative approach to enhance alkaline water electrolysis using single-atom iridium catalysts, resulting in improved efficiency and stability of the process (Wang et al., 2024).
  • An Aqueous Redox Flow Battery Using CO(2) as an Active Material with a Homogeneous Ir Catalyst.: This paper explores the use of iridium catalysts in an aqueous redox flow battery, utilizing CO2 as an active material to improve energy storage capabilities (Kanega et al., 2023).
  • Kinetic Acceleration of Lithium Polysulfide Conversion via a Copper-Iridium Alloying Catalytic Strategy in Li-S Batteries.: This research highlights the use of copper-iridium alloys to accelerate the conversion of lithium polysulfides, significantly enhancing the performance of lithium-sulfur batteries (Zhai et al., 2022).
  • Introducing High-Valence Iridium Single Atoms into Bimetal Phosphides toward High-Efficiency Oxygen Evolution and Overall Water Splitting.: The study demonstrates the integration of high-valence iridium single atoms into bimetal phosphides, leading to highly efficient oxygen evolution and water splitting processes (Yang et al., 2023).

Storage Class Code

13 - Non Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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Enantioselective iridium-catalyzed hydrogenation of 1- and 3-substituted isoquinolinium salts.
Zhi-Shi Ye et al.
Angewandte Chemie (International ed. in English), 52(13), 3685-3689 (2013-02-21)
Carl W Liskey et al.
Journal of the American Chemical Society, 135(9), 3375-3378 (2013-02-21)
The borylation of cyclopropanes catalyzed by the combination of (η(6)-mes)IrBpin3 or [Ir(COD)OMe]2 and a phenanthroline derivative is reported. The borylation occurs selectively at the methylene C-H bonds of the cyclopropane ring over methine or methyl C-H bonds. High diasteroselectivities were
Chun-I Lee et al.
Journal of the American Chemical Society, 135(9), 3560-3566 (2013-02-05)
Compounds with carbon-boron bonds are versatile intermediates for building more complex molecules via the elaboration of the carbon-boron bonds into other carbon-element bonds. The synthesis of carbon-boron bonds by catalytic dehydrogenative borylation of carbon-hydrogen bonds with dialkoxyboranes (RO)2BH is particularly
Daniel Shiu-Hin Chan et al.
PloS one, 8(3), e60114-e60114 (2013-03-28)
We report herein a novel luminescent iridium(III) complex with two hydrophobic carbon chains as a non-reaction based chemosensor for the detection of Hg(2+) ions in aqueous solution (<0.002% of organic solvent attributed to the probe solution). Upon the addition of
Le Guo et al.
Organic letters, 15(5), 1144-1147 (2013-02-16)
The first α-alkylation of unactivated amides with primary alcohols is described. An effective and robust iridium pincer complex has been developed for selective α-alkylation of tertiary and secondary acetamides involving a "borrowing hydrogen" methodology. The method is compatible with alcohols
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