Bis(ethylcyclopentadienyl)magnesium
Synonym: (EtCp)2Mg; Mg(EtCp)2; Bis(1-ethylcyclopenta-2, 4-dien-1-yl)magnesium; Bis(1-ethyl-2, 4-cyclopentadien-1-yl)magnesium; Magnesium, bis(1-ethyl-2, 4-cyclopentadien-1-yl)-; Magnesium; 2-ethylcyclopenta-1, 3-diene; Magnesium, bis(ethylcyclopentadienyl)-
CAS Number 114460-02-5 | MDL Number MFCD00151375 | EC Number 631-233-1
Bis(ethylcyclopentadienyl)magnesium, also known as (EtCp)₂Mg or Magnesium bis(ethylcyclopentadienyl), is an organomagnesium compound with the molecular formula C₁₄H₁₈Mg and a molecular weight of 210.6 g/mol. In this compound, magnesium is in a +2 oxidation state, coordinated with two ethyl-substituted cyclopentadienyl ligands, forming a stable, reactive metallocene structure. Bis(ethylcyclopentadienyl)magnesium typically appears as a colorless to yellow liquid with a purity of 99%, as verified by titration. The compound is highly sensitive to air and moisture and requires storage under inert conditions to prevent degradation.
Applications in Organic and Inorganic Synthesis
This compound serves as a versatile reagent in organometallic synthesis, particularly for reactions that introduce magnesium as a central atom in complex structures. The ethylcyclopentadienyl ligands provide stability and reactivity, making it ideal for applications in polymerization and advanced materials synthesis. It is especially valuable in research focused on developing magnesium-containing materials and as a precursor in the synthesis of high-performance polymers.
Precautions for Safe Storage and Handling
Classified with hazard codes H226, H250, H261-2, H314, H318, and H335, Bis(ethylcyclopentadienyl)magnesium is pyrophoric, flammable, and water-reactive. It should be handled with care, under an inert atmosphere such as nitrogen or argon, in a well-ventilated area. Personal protective equipment, including gloves, eye protection, and flame-resistant clothing, is necessary to minimize the risk of exposure. The compound should be stored in tightly sealed containers away from heat sources to prevent accidental ignition.
Industrial and Laboratory Applications
In industrial and laboratory settings, Bis(ethylcyclopentadienyl)magnesium is crucial for the development of organometallic reagents, particularly in the synthesis of advanced materials and catalysts. Its structure and reactivity make it suitable for use in electronic material development and in creating polymers with specialized properties. The compound’s unique properties allow it to facilitate complex reactions, making it an indispensable tool in material science and high-performance synthetic chemistry.
Bis(ethylcyclopentadienyl)magnesium is used as a precursor in recent solar energy and water treatment researches. For example, a new process has been developed to deposit magnesium fluoride (MgF2) thin films via atomic layer deposition (ALD) for use as optical coatings in the ultraviolet. The results displayed that this product is a good candidate for a variety of optical applications in the far ultraviolet. See the link below.
Ereztech manufactures and sells this product in small and bulk volumes. Glass ampules, bottles or metal ampules or bubblers are available for packaging. For additional analytical information or details about purchasing Bis(ethylcyclopentadienyl)magnesium contact us at sales@ereztech.com
Safety information
| UN | 3394 |
| Hazardous class | 4.2 (4.3) |
| Packing group | I |
| Pictograms |    |
| Signal word | DANGER |
| Hazard statements | |
| Precautionary statements | P210-P222-P223-P231 + P232-P233-P240-P241-P342-P243-P260-P261-P271-P280-P301 + P330 + P331-P303 + P361 + P353-P304 + P340-P305 + P351 + P338-P310-P334 + P335-P363-P370 + P378 |
| Transport description | Organometallic substance, liquid, pyrophoric, water-reactive (Bis(ethylcyclopentadienyl)magnesium) |
| In TSCA registry | No (for research and development only) |
First Aid Measures
| General advice | Consult a physician. Show this safety data sheet to the doctor in attendance. Move out of the dangerous area. |
| Eye contact | Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician. |
| Skin contact | Wash off with soap and plenty of water. Consult a physician. |
| Inhalation | If breathed in, move person into the fresh air. If not breathing, give artificial respiration. Consult a physician. |
| If swallowed | Do NOT induce vomiting. Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician. |
Certificates of Analysis (CoA)
If you don’t see the needed lot of Bis(ethylcyclopentadienyl)magnesium below please contact customer support at sales@ereztech.com
Lot# 006/573 Lot# 020/353 Lot# 029/188 Lot# 603-003/018 Lot# 029/237
External identifiers for Bis(ethylcyclopentadienyl)magnesium
| Pubchem CID | 22336304 |
| SMILES | CCC1=[C-]CC=C1.CCC1=[C-]CC=C1.[Mg+2] |
| IUPAC Name | magnesium; 2-ethylcyclopenta-1,3-diene |
| InchI Identifier | InChI=1S/2C7H9.Mg/c2*1-2-7-5-3-4-6-7;/h2*3,5H,2,4H2,1H3;/q2*-1;+2 |
| InchI Key | UBRLRTCDAHALGT-UHFFFAOYSA-N |
Known applications and external links
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Ereztech synthesizes and sells additional MG-compounds.
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