852813-39-9

Basic information

• Product Name: [Co₂(CO)6(tris(2,4-di-tert-butylphenyl)phosphite)2]
• CAS NO: 852813-39-9
• Molecular Weight: 1579.92
• Mol File: 852813-39-9.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: [Co₂(CO)6(tris(2,4-di-tert-butylphenyl)phosphite)2](CAS DataBase Reference)
• NIST Chemistry Reference: [Co₂(CO)6(tris(2,4-di-tert-butylphenyl)phosphite)2](852813-39-9)
• EPA Substance Registry System: [Co₂(CO)6(tris(2,4-di-tert-butylphenyl)phosphite)2](852813-39-9)

Safety Data

• Hazardous Substances Data: 852813-39-9(Hazardous Substances Data)

Upstream product

• 15226-74-1 dicobalt octacarbonyl 
• 31570-04-4 tris(2,4-di-tert-butylphenyl)phosphite 

Downstream Products

• 852813-38-8 [CoH(CO)3(tris(2,4-di-tert-butylphenyl)phosphite)] 

Relevant articles and documents

Synthesis, spectroscopy, and hydroformylation activity of sterically demanding, phosphite-modified cobalt catalysts

The dinuclear complex [Co2(CO)6{P(O-2,4-t-Bu 2C6H3)3}2] (6) has been synthesised and fully characterised. X-Ray crystal-structure analysis revealed a trans-diaxial geometry, no bridging carbonyls, and Co-Co and Co-P bond lengths of 2.706(5) and 2.134(4) A, respectively. The hydroformylation of pent-1-ene in the presence of 6 was studied at 120-180° at pressures between 20 and 80 bar Syngas. High-pressure (HP) spectroscopy (IR, NMR) was used to detect potential hydride intermediates. HP-IR Studies revealed the formation of [CoH(CO)3{P(O-2,4-t-Bu2C6H3) 3}] (2) at ca. 105°, with no significant amount of [CoH(CO) 4] detectable. The intermediate 2 was synthesised and characterised. The formation of the undesired complex [CoH(CO)2{P(O-2,4-t-Bu 2C6H3)3}2] was completely suppressed due to the large cone angle of the sterically demanding phosphite.