342908-85-4

Basic information

• Product Name: C₄(CH₃)4PC₆H₅Mo(CO)5
• CAS NO: 342908-85-4
• Molecular Weight: 452.255
• Mol File: 342908-85-4.mol

Chemical Properties

• CAS DataBase Reference: C₄(CH₃)4PC₆H₅Mo(CO)5(CAS DataBase Reference)
• NIST Chemistry Reference: C₄(CH₃)4PC₆H₅Mo(CO)5(342908-85-4)
• EPA Substance Registry System: C₄(CH₃)4PC₆H₅Mo(CO)5(342908-85-4)

Safety Data

• Hazardous Substances Data: 342908-85-4(Hazardous Substances Data)

Upstream product

• 112549-07-2 2,3,4,5-tetramethyl-1-phenylphosphole 
• 13939-06-5 molybdenum hexacarbonyl 

Relevant articles and documents

Cis- and trans-Bis(1-phenyl-2,3,4,5-tetramethylphosphole)tetracarbonylmolybdenum(0), [Mo(CO)4(tmpPh)2]. Syntheses and structures

1-Phenyl-2,3,4,5-tetramethylphosphole reacts with [Mo(CO)6] to give the mono- and bis(phosphole) complexes [Mo(CO)5L] and cis- and trans-[Mo(CO)4L2], where L=C4Me4PPh (tmpPh). The new complexes have been characterised by spectroscopic methods, supplemented by single-crystal X-ray analyses in the case of the bis(phosphole) isomers. The isomeric bis-tmpPh complexes show little evidence of the overcrowding which is thought to lengthen bonds and distort the metal coordination in the corresponding bis-PPh3 and bis-PCy3 isomers. The structural basis for the greater stability of the trans isomers is briefly considered: the cis→trans isomerisation typically involves little change in the mean Mo-CO distance, whereas there is a marked shortening of the Mo-P bonds.