Dimethylcadmium: Difference between revisions

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'''Dimethylcadmium''' is a [[chemical compound]] with the formula (CH3)2Cd. This highly volatile and pyrophoric compound is one of the few organometallic compounds of [[cadmium]]. It is a colorless liquid that is used in the synthesis of other organocadmium compounds. It is highly toxic and exposure can result in cadmium poisoning.
{{DISPLAYTITLE:Dimethylcadmium}}


== History ==
== Dimethylcadmium ==
Dimethylcadmium was first synthesized in the late 19th century by the German chemist [[Friedrich August Kekulé]]. He discovered that it could be produced by the reaction of [[methyl iodide]] with [[cadmium iodide]] in the presence of [[zinc]].


== Properties ==
[[File:Dimethylcadmium-3D-vdW.png|thumb|right|3D model of Dimethylcadmium]]
Dimethylcadmium is a colorless, highly volatile liquid. It has a boiling point of 114 °C and a melting point of -43 °C. It is highly reactive and can spontaneously ignite in air. It is also highly toxic and can cause severe health effects if inhaled or ingested.
 
'''Dimethylcadmium''' is an organocadmium compound with the formula (CH<sub>3</sub>)<sub>2</sub>Cd. It is a colorless, highly toxic liquid that is primarily used in the synthesis of other chemical compounds. Dimethylcadmium is one of the most toxic chemicals known, and it is also highly volatile and flammable.
 
== Structure and Properties ==
 
Dimethylcadmium is a linear molecule with a cadmium atom bonded to two methyl groups. The [[cadmium]] atom is in the +2 oxidation state, and the compound is classified as an [[organometallic compound]]. The molecule is relatively simple, with a linear geometry due to the sp hybridization of the cadmium center.
 
The compound is known for its high volatility and low boiling point, which is around 103 °C. It is also highly reactive, particularly with water and oxygen, which can lead to the formation of cadmium oxide and other byproducts.


== Synthesis ==
== Synthesis ==
Dimethylcadmium can be synthesized by the reaction of [[methyl iodide]] with [[cadmium iodide]] in the presence of [[zinc]]. The reaction proceeds via the formation of a [[Grignard reagent]], which then reacts with the cadmium iodide to form dimethylcadmium.


== Uses ==
Dimethylcadmium can be synthesized by the reaction of [[cadmium chloride]] with [[methylmagnesium bromide]] or [[methyl lithium]]. The reaction typically proceeds as follows:
Dimethylcadmium is used in the synthesis of other organocadmium compounds. It is also used as a [[catalyst]] in certain types of [[chemical reactions]], such as the [[polymerization]] of [[ethylene]].
 
<math>\text{CdCl}_2 + 2 \text{CH}_3\text{MgBr} \rightarrow \text{(CH}_3\text{)}_2\text{Cd} + 2 \text{MgBrCl}</math>
 
This reaction must be carried out under an inert atmosphere to prevent the highly reactive dimethylcadmium from decomposing or reacting with moisture in the air.
 
== Applications ==
 
Dimethylcadmium is used primarily in the field of [[chemical vapor deposition]] (CVD) to deposit thin films of cadmium-containing materials. It is particularly useful in the production of [[cadmium telluride]] and [[cadmium sulfide]] films, which are used in [[photovoltaic cells]] and other semiconductor applications.
 
== Safety and Handling ==
 
Due to its extreme toxicity, dimethylcadmium must be handled with great care. It is a potent [[carcinogen]] and can cause severe damage to the lungs, liver, and kidneys upon exposure. Proper [[personal protective equipment]] (PPE) and ventilation are essential when working with this compound.


== Safety ==
== Related Pages ==
Dimethylcadmium is highly toxic and exposure can result in cadmium poisoning. Symptoms of exposure can include [[nausea]], [[vomiting]], [[diarrhea]], and severe [[respiratory distress]]. Long-term exposure can lead to [[kidney damage]] and [[cancer]]. Due to its high toxicity, dimethylcadmium is classified as a [[hazardous substance]] and must be handled with extreme care.


== See also ==
* [[Cadmium]]
* [[Organometallic chemistry]]
* [[Organometallic chemistry]]
* [[Cadmium poisoning]]
* [[Chemical vapor deposition]]
* [[Grignard reaction]]
* [[Cadmium telluride]]


[[Category:Organometallic compounds]]
[[Category:Organocadmium compounds]]
[[Category:Cadmium compounds]]
[[Category:Organometallic chemistry]]
[[Category:Toxicology]]
[[Category:Chemical hazards]]
{{Chem-stub}}
{{Toxicology-stub}}

Latest revision as of 06:18, 16 February 2025


Dimethylcadmium[edit]

3D model of Dimethylcadmium

Dimethylcadmium is an organocadmium compound with the formula (CH3)2Cd. It is a colorless, highly toxic liquid that is primarily used in the synthesis of other chemical compounds. Dimethylcadmium is one of the most toxic chemicals known, and it is also highly volatile and flammable.

Structure and Properties[edit]

Dimethylcadmium is a linear molecule with a cadmium atom bonded to two methyl groups. The cadmium atom is in the +2 oxidation state, and the compound is classified as an organometallic compound. The molecule is relatively simple, with a linear geometry due to the sp hybridization of the cadmium center.

The compound is known for its high volatility and low boiling point, which is around 103 °C. It is also highly reactive, particularly with water and oxygen, which can lead to the formation of cadmium oxide and other byproducts.

Synthesis[edit]

Dimethylcadmium can be synthesized by the reaction of cadmium chloride with methylmagnesium bromide or methyl lithium. The reaction typically proceeds as follows:

CdCl2+2CH3MgBr(CH3)2Cd+2MgBrCl

This reaction must be carried out under an inert atmosphere to prevent the highly reactive dimethylcadmium from decomposing or reacting with moisture in the air.

Applications[edit]

Dimethylcadmium is used primarily in the field of chemical vapor deposition (CVD) to deposit thin films of cadmium-containing materials. It is particularly useful in the production of cadmium telluride and cadmium sulfide films, which are used in photovoltaic cells and other semiconductor applications.

Safety and Handling[edit]

Due to its extreme toxicity, dimethylcadmium must be handled with great care. It is a potent carcinogen and can cause severe damage to the lungs, liver, and kidneys upon exposure. Proper personal protective equipment (PPE) and ventilation are essential when working with this compound.

Related Pages[edit]