Bis(benzene)chromium

Base Information

• Chemical Name: Bis(benzene)chromium
• CAS No.: 1271-54-1
• Molecular Formula: C12H12 Cr
• Molecular Weight: 208.223
• Hs Code.: 29319090
• Wikipedia: Bis(benzene)chromium
• Mol file: 1271-54-1.mol

Synonyms:Chromium, bis(benzene)-;Bis(benzene)chromium;Dibenzenechromium;Diphenylchromium;Chromium, bis(.eta.6-benzene)-;Chromium(II), diphenyl-;Bis(eta6-benzene)chromium;Bis(eta(sup 6)-benzene)chromium;EINECS 215-042-7;Chromium, bis(eta(sup 6)-benzene)-;bis(.eta.<6>-Benzene) chromium;Chromium, bis(.eta.(sup 6)-benzene)-

Chemical Property of Bis(benzene)chromium

Chemical Property:

• Appearance/Colour: brown to black xtl.
• Vapor Pressure: 101mmHg at 25°C
• Melting Point: 284-285 °C
• Boiling Point: 78.8 °C at 760 mmHg
• Flash Point: 180 °F
• PSA: 0.00000
• Density: g/cm³
• LogP: 3.37320
• Storage Temp.: Flammables area
• Sensitive.: Air & Moisture Sensitive
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 6
• Rotatable Bond Count: 0
• Exact Mass: 208.034405
• Heavy Atom Count: 13
• Complexity: 97.3

Purity/Quality:

98%,99%, ^*data from raw suppliers

Bis(benzene)chromium, min. 97% ^*data from reagent suppliers

Safty Information:

• Pictogram(s): F
• Hazard Codes: F
• Statements: 11
• Safety Statements: 16-33

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: [CH-]1[CH-][CH-][CH-][CH-][CH-]1.C1=CC=CC=C1.[Cr]
• Uses: Catalyst for:Olefin hydrogenationElectron transfer chain catalysis mechanismPre-catalyst for the hydrosilation of ketones and aldehydes, for the dehydrocoupling of triphenylsilane with primary alcohols

Technology Process of Bis(benzene)chromium

There total 62 articles about Bis(benzene)chromium which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 92.0%

chromium(III) chloride (10025-73-7,16284-59-6) + benzene (71-43-2,26181-88-4,54682-86-9,13967-78-7,174973-66-1) → bis(benzene)chromium(0) (1271-54-1)

Guidance literature:

With aluminium trichloride; aluminum tri-bromide; aluminium; aluminium trichloride; aluminium bromide; aluminium; In neat (no solvent); heating a mixt. of CrCl3, Al, AlCl3, and AlBr3 at 160 - 180 °C; storing at room temp. for 10h; yield given for 180 °C;;

Reference yield: 90.0%

bis(benzene)chromium(I) (11077-47-7) → bis(benzene)chromium(0) (1271-54-1)

Guidance literature:

With sodium hydroxide; aluminium; In water; benzene; redn.;; on shaking the product enters the organic phase;;

Reference yield: 68.0%

cromium(II) chloride tetrahydrofuran solvate (15604-50-9) + cyclohexadienyllithium (914491-01-3) → bis(benzene)chromium(0) (1271-54-1)

Guidance literature:

In not given; formed from CrCl2(THF)2 and 2 equiv. of ChLi;

DOI:10.1021/om00152a020

upstream raw materials:

fluorobenzene

chromium

benzene

bis(benzene)chromium(I)

Downstream raw materials:

(benzene)tricarbonylchromium

{(C₆H₆)2Cr}⁽¹⁺⁾*O₂CC₆H₅^(1-)={(C₆H₆)2Cr}O₂CC₆H₅

diphenylbenzene chrome iodide

bisbiphenylchromium iodide

Refernces

• 1、 Elschenbroich. "-". . p. 677 - 683. Retrieved 1970.
• 2、 Lund, Clinton L.,Schachner, Joerg A.,Burgess, Ian J.,Quail, J. Wilson,Schatte, Gabriele,Mueller, Jens. "Synthesis and characterization of aluminum- and gallium-bridged [1.1]chromarenophanes and [1.1]molybdarenophanes". . p. 5992 - 6000. Retrieved 2009/02/05.