850093-87-7

Basic information

• Product Name: [HRh(CO)3(tris(2,4-di-tert-butylphenyl)phosphite)]
• CAS NO: 850093-87-7
• Molecular Weight: 834.879
• Mol File: 850093-87-7.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: [HRh(CO)3(tris(2,4-di-tert-butylphenyl)phosphite)](CAS DataBase Reference)
• NIST Chemistry Reference: [HRh(CO)3(tris(2,4-di-tert-butylphenyl)phosphite)](850093-87-7)
• EPA Substance Registry System: [HRh(CO)3(tris(2,4-di-tert-butylphenyl)phosphite)](850093-87-7)

Safety Data

• Hazardous Substances Data: 850093-87-7(Hazardous Substances Data)

Upstream product

• 31570-04-4 tris(2,4-di-tert-butylphenyl)phosphite 
• 1333-74-0 hydrogen 
• 494804-05-6 dodecacarbonyltetrarhodium⁽⁰⁾ 
• 201230-82-2 carbon monoxide 

Relevant articles and documents

Rhodium hydride formation in the presence of a bulky monophosphite ligand: A spectroscopic and solid-state investigation

A study has been carried out on rhodium catalyst preforming when modified with the bulky tris(2,4-di-tert-butylphenyl) phosphite, P(Obtbp)3. X-Ray crystal structure determinations of a tropolone-type precursor complex [Rh(TropBr3)(CO){P(Obtbp)3}].P(Obtbp)3· CH3COCH3 (TropBr3 = 3,5,7-tribromotropolonate) and the free P(Obtbp)3 ligand are reported. Systematic in situ IR and NMR studies of the particular rhodium phosphite modified catalyst and its precursors have led to the identification of two distinct rhodium hydride species. A {1H,31P} HMBC NMR experiment afforded clarity on the 31P NMR spectra observed under hydroformylation conditions. The species were identified as [HRh(CO)3{P(Obtbp)3}] and [HRh(CO)2{P(Obtbp)3}2]. Attention was also given to the rate of catalyst formation when starting from different rhodium precursors. The Royal Society of Chemistry 2005.