74507-61-2

Basic information

• Product Name: BIS(PENTAMETHYLCYCLOPENTADIENYL)CHROMIUM
• Synonyms: DECAMETHYLCHROMOCENE;BIS(PENTAMETHYLCYCLOPENTADIENYL)CHROMIUM;BIS(PENTAMETHYLCYCLOPENTADIENYL)CHROMIUM(II);Bis(pentamethylcyclopentadienyl)chrom;Bis(pentamethylcyclopentadienyl)chromium,min.95%(Decamethylchromocene);BIS(PENTAMETHYLCYCLOPENTADIENYL)CHROMIUM , (DECAMETHYLCHROMOCENE);Bis(pentamethylcyclopentadienyl)chromium, 95+%;Bis(pentamethylcyclopentadienyl)chromium,95%(Decamethylchromocene)
• CAS NO: 74507-61-2
• Molecular Formula: C₂₀H₃₀Cr
• Molecular Weight: 322.45
• Mol File: 74507-61-2.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 170.2 °C at 760 mmHg
• Flash Point: 44.4 °C
• Appearance: brown/Powder
• Vapor Pressure: 1.97mmHg at 25°C
• Storage Temp.: Freezer (-20°C)
• Sensitive: Air & Moisture Sensitive
• CAS DataBase Reference: BIS(PENTAMETHYLCYCLOPENTADIENYL)CHROMIUM(CAS DataBase Reference)
• NIST Chemistry Reference: BIS(PENTAMETHYLCYCLOPENTADIENYL)CHROMIUM(74507-61-2)
• EPA Substance Registry System: BIS(PENTAMETHYLCYCLOPENTADIENYL)CHROMIUM(74507-61-2)

Safety Data

• Hazard Codes: Xn
• Statements: 20/21/22
• Safety Statements: 36-37/39-26
• RIDADR: UN3181
• WGK Germany: 3
• HazardClass: 4.1
• PackingGroup: III
• Hazardous Substances Data: 74507-61-2(Hazardous Substances Data)

Usage

InChI:InChI=1/2C10H15.Cr/c2*1-6-7(2)9(4)10(5)8(6)3;/h2*1-5H3;/q-5;-1;

Relevant articles and documents

Synthesis and reaction chemistry of a new class of paramagnetic chromium(III) alkyls. Characterization of complexes formed by insertion of nitriles into the chromium-carbon bond

A series of dimeric chromium(III) alkyls [(η5-C5Me5)Cr(μ-Cl)R]2 (R = Me, Et, Ph, Bz) has been prepared. Magnetic susceptibility measurements indicated antiferromagnetic coupling between the chromium centers. The chromium alkyls react with an excess of nitrile to form mononuclear β-diketimino complexes by insertion of nitrile into the chromium-carbon bond. With stoichiometric amounts of nitrile, dinuclear chromium complexes featuring bridging ketimino ligands are formed. The product from the reaction of [(η5-C5Me5)Cr(μ-Cl)Me]2 with benzonitrile has been characterized by a preliminary X-ray structure determination. [(η5-C5Me5)Cr(μ-Cl)Me]2 also reacts with 2-butyne to yield poly-2-butyne and the chromium(I) sandwich complex [(η5-C5Me5)Cr(η6-C 6Me6)]. This 17-electron species exhibits both a reversible oxidation and reduction in THF.