82066-37-3

Basic information

• Product Name: BIS(TETRAMETHYLCYCLOPENTADIENYL)CHROMIUM
• Synonyms: BIS(TETRAMETHYLCYCLOPENTADIENYL)CHROMIUM;BIS(TETRAMETHYLCYCLOPENTADIENYL)CHROMIUM(II);BIS(TETRAMETHYLCYCLOPENTADIENYL)CHROMIU&;Bis(tetramethylcyclopentadienyl)chromium,min.98%;Bis(tetramethylcyclopentadienyl)chromium(II), 98+%;Bis(tetramethylcyclopentadienyl)chromium, min. 98%;Bis(tetramethylcyclopentadienyl)chromium, 98+%;1,1′,2,2′,3,3′,4,4′-Octamethylchromocene
• CAS NO: 82066-37-3
• Molecular Formula: C18H26Cr 10*
• Molecular Weight: 294.4
• Product Categories: Catalysis and Inorganic Chemistry;Chemical Synthesis;Chromium
• Mol File: 82066-37-3.mol
• Article Data: 1

Chemical Properties

• Melting Point: 106-111 °C (dec.)(lit.)
• Appearance: red/crystal
• Storage Temp.: 2-8°C
• Sensitive: Air & Moisture Sensitive
• CAS DataBase Reference: BIS(TETRAMETHYLCYCLOPENTADIENYL)CHROMIUM(CAS DataBase Reference)
• NIST Chemistry Reference: BIS(TETRAMETHYLCYCLOPENTADIENYL)CHROMIUM(82066-37-3)
• EPA Substance Registry System: BIS(TETRAMETHYLCYCLOPENTADIENYL)CHROMIUM(82066-37-3)

Safety Data

• Hazard Codes: Xn
• Statements: 20/21/22
• Safety Statements: 36
• WGK Germany: 3
• Hazardous Substances Data: 82066-37-3(Hazardous Substances Data)

Usage

Uses

Investigations of chromium valence by electron energy loss spectroscopy

InChI:InChI=1/2C9H13.Cr/c2*1-6-5-7(2)9(4)8(6)3;/h2*5H,1-4H3;

Upstream product

• 386708-10-7 tetramethylcyclopentadienyllithium 

Relevant articles and documents

NMR Spectroscopy on Paramagnetic Complexes, XXVII. Paramagnetic 1,1',2,2',3,3',4,4'-Octamethylmetallocenes

The tetramethylated cyclopentadienyl anion has been prepared from tiglinic acid and reacted with solvated metal(II) chlorides to give new octamethylmetallocenes (Me4cp)2M.For M = V, Cr, Co and Ni the paramagnetic 1H and 13C spectra have been recorded.The NMR data prove the molecular structure and show that all methyl groups rotate almost freely.The methyl proton resonance of the nickelocene may serve as a probe for the adjustment of metallocene properties by ring substitution.Based on qualitative MO arguments the correlation of electron spin densities and paramagnetic shifts lead to an understanding of the signal splitting of cobaltocenes.From the electronic point of view the octamethylmetallocenes may be regarded as being invers to 1,1'-dimethylmetallocenes. - Key words: Octamethylmetallocenes, Paramagnetic 1H/13C NMR