Dimethylzinc

Title: Dimethylzinc
CAS Registry Number: 544-97-8
Additional Names: Zinc dimethyl
Molecular Formula: C2H6Zn
Molecular Weight: 95.48
Percent Composition: C 25.16%, H 6.33%, Zn 68.51%
Line Formula: Zn(CH3)2
Literature References: Prepd by the interaction of zinc and methyl iodide: Simonowitch, Chem. Zentralbl. 1899, I, 1066; Bamford et al., J. Chem. Soc. 1946, 468.
Properties: Mobile liquid. Stable in sealed tube and under CO2. d410.5 1.386; mp -40°; bp 46°. Ignites in air, burns with a blue flame, giving off a peculiar, garlic-like odor. Very slow oxidation with traces of air produces methylzinc methylate, CH3ZnOCH3. Sol in ether, miscible with hydrocarbons.
Melting point: mp -40°
Boiling point: bp 46°
Density: d410.5 1.386
Dimetilan Dimetofrine Dimetridazole Diminazene Aceturate Dimorpholamine

Dimethylzinc
Ball-and-stick model of dimethylzinc
Identifiers
CAS number 544-97-8 YesY
ChemSpider 10254473 YesY
ChEBI CHEBI:51497 YesY
Jmol-3D images Image 1
Properties
Molecular formula Zn(CH3)2
Molar mass 95.478 g/mol
Melting point -42 °C
Boiling point 46 °C
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Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Infobox references

Dimethylzinc, also known as Zinc methyl, DMZ, or DMZn is a colorless mobile liquid Zn(CH3)2, formed by the action of methyl iodide on zinc at elevated temperature or on zinc sodium alloy.

2Zn + 2CH3I → Zn(CH3)2 + ZnI2

The sodium assists the reaction of the zinc with the methyl iodide. Zinc iodide is formed as a byproduct.

It has a disagreeable odor, and is pyrophoric. It has been of great importance in the synthesis of organic compounds. It is soluble in alkanes and often sold as a solution in hexanes. It belongs to the large series of similar compounds such as diethylzinc.