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Tris(acetonitrile)tricarbonylchromium(0)
[CAS# 16800-46-7]

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Identification
Classification Organic raw materials >> Organometallic compound >> Organic scandium, tantalum, thallium, tungsten, antimony, lanthanum, lead, vanadium, molybdenum, chromium, ytterbium, etc.
Name Tris(acetonitrile)tricarbonylchromium(0)
Synonyms acetonitrile carbon monoxide chromium
Molecular Structure CAS # 16800-46-7, Tris(acetonitrile)tricarbonylchromium(0), acetonitrile carbon monoxide chromium
Molecular Formula C9H9CrN3O3
Molecular Weight 259.18
CAS Registry Number 16800-46-7
EC Number 626-351-5
SMILES CC#N.CC#N.CC#N.[C-]#[O+].[C-]#[O+].[C-]#[O+].[Cr]
Safety Data
Hazard Symbols symbol   GHS02 Danger    Details
Hazard Statements H250    Details
Precautionary Statements P210-P222-P231-P233-P280-P302+P335+P334-P370+P378    Details
Hazard Classification
up    Details
HazardClassCategory CodeHazard Statement
Pyrophoric solidsPyr. Sol.1H250
up Discovory and Applicatios
Tris(acetonitrile)tricarbonylchromium(0) is a notable organometallic compound that has garnered significant interest in the fields of coordination chemistry and catalysis. This chemical substance, often abbreviated as Cr(CO)_3(NCMe)_3, is a chromium(0) complex where the metal center is coordinated to three acetonitrile ligands and three carbon monoxide ligands. Its discovery and applications have contributed substantially to advancements in both synthetic chemistry and material science.

The discovery of tris(acetonitrile)tricarbonylchromium(0) can be traced back to research aimed at exploring the coordination chemistry of transition metals, particularly those involving chromium in low oxidation states. This compound was first synthesized in the mid-20th century as part of a broader effort to investigate the bonding and reactivity of chromium complexes. The synthesis typically involves reacting chromium(0) with carbon monoxide and acetonitrile under controlled conditions. The resulting compound features a chromium center surrounded by a octahedral arrangement of six ligands—three CO groups and three acetonitrile molecules.

The synthesis of tris(acetonitrile)tricarbonylchromium(0) requires precise control of reaction conditions to achieve the desired product. Typically, the process involves dissolving chromium(0) in a solvent and exposing it to carbon monoxide and acetonitrile under a controlled atmosphere. The reaction is carried out at specific temperatures and pressures to ensure the formation of the complex in high yield and purity. The product is then purified and characterized using techniques such as infrared spectroscopy, nuclear magnetic resonance (NMR) spectroscopy, and X-ray crystallography.

One of the primary applications of tris(acetonitrile)tricarbonylchromium(0) is in organometallic chemistry as a catalyst in various chemical reactions. The compound serves as a source of chromium in its zero oxidation state, which can be used to facilitate a range of catalytic processes. For example, it is employed in carbonylation reactions where it activates carbon monoxide for the synthesis of complex organic molecules. Its ability to stabilize intermediate species and promote specific reaction pathways makes it valuable in the synthesis of fine chemicals and pharmaceuticals.

In addition to its role in catalysis, tris(acetonitrile)tricarbonylchromium(0) is used in material science for the development of novel materials. The compound's ability to form stable coordination complexes with various ligands allows it to be utilized in the synthesis of new materials with tailored properties. For instance, it can be used to modify the surface properties of polymers or to create new organometallic frameworks with potential applications in electronics and sensors.

Moreover, tris(acetonitrile)tricarbonylchromium(0) has been studied for its potential use in polymerization reactions. Its role as a catalyst in these processes can lead to the formation of new polymeric materials with unique physical and chemical properties. The compound's ability to coordinate with different ligands and its stability under various conditions make it a versatile tool in the design and synthesis of advanced materials.

In summary, tris(acetonitrile)tricarbonylchromium(0) is an important organometallic compound with significant applications in catalysis and material science. Its discovery has provided valuable insights into the coordination chemistry of chromium and has paved the way for the development of new materials and catalytic processes. The ongoing research into its properties and applications continues to contribute to advancements in both synthetic chemistry and material science.
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