53470-09-0

Basic information

• Product Name: Fe(C₂₀H₈N₄(C₆H₅)4)(CO)(C₅H₅N)
• Synonyms: Fe(C₂₀H₈N₄(C₆H₅)4)(CO)(C₅H₅N)
• CAS NO: 53470-09-0
• Molecular Weight: 775.692
• Mol File: 53470-09-0.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: Fe(C₂₀H₈N₄(C₆H₅)4)(CO)(C₅H₅N)(CAS DataBase Reference)
• NIST Chemistry Reference: Fe(C₂₀H₈N₄(C₆H₅)4)(CO)(C₅H₅N)(53470-09-0)
• EPA Substance Registry System: Fe(C₂₀H₈N₄(C₆H₅)4)(CO)(C₅H₅N)(53470-09-0)

Safety Data

• Hazardous Substances Data: 53470-09-0(Hazardous Substances Data)

Upstream product

• 110-86-1 pyridine 
• 16456-81-8 meso-tetraphenylporphyrin iron(III) chloride 
• 201230-82-2 carbon monoxide 
• 67409-82-9 pyridine iron tetraphenylporphyrin 
• 917-23-7 5,10,15,20-tetraphenyl-21H,23H-porphine 
• 1834-30-6 iron(II) acetate 
• 17845-65-7 bis(piperidine)(5,10,15,20-tetraphenylporphyrinato)iron(II) 

Downstream Products

• 12582-61-5 ((5,10,15,20-tetraphenylporphyrinato)iron(III))2O 

Relevant articles and documents

Tuning the Vibrational Relaxation of CO Bound to Heme and Metalloporphyrin Complexes

Picosecond mid-infrared pump-probe experiments were used to investigate vibrational relaxation (VR, which here denotes loss of excess vibrational energy) of CO bound to synthetic heme and porphyrin complexes with different metal atoms (M = Fe, Ru, Os) and different proximal ligands (imidazoles and pyridines).Isotope effects of 13CO vs 12CO and solvent effects were also studied.A remarkable correlation between the carbonyl vibrational lifetime and the carbonyl vibrational frequency νCO is observed.The vibrational lifetime decreases as νCO decreases.The lifetime-frequency correlation is consistent with a linear reaction between carbonyl vibrational relaxation rate and νCO.Hemes and porphyrins show similar lifetime-frequency correlations, but the absolute value of the VR rate in meso-tetraphenylporphyrin complexes is slightly faster than in protoporphyrin IX dimethyl ester heme complexes.The predominant VR process is shown to be intramolecular transfer from CO to heme vibrations, rather than intermolecular transfer from CO to solvent vibrations.The intramolecular process occurs by anharmonic coupling via ?-bonding between CO and the metalloporphyrin and heme.In metalloporphyrin and heme complexes, changes in back-bonding to CO simultaneously affect both CO frequency and the strength of anharmonic coupling, accounting for the observed lifetime-frequency correlation.Increasing back-bonding lowers the CO frequency and increases the anharmonic coupling, shortening the vibrational lifetime.Similar lifetime-frequency correlations are observed in wild-type and mutant heme proteins.It is possible to continuously tume the vibrational relaxation rate of CO over a range spanning about a factor of 4, by systematic modification of the chemical structure of the heme or porphyrin complex to which it is bound.

Electronic Control of Ferroporphyrin Ligand-Binding Kinetics

Measurements of the rates of CO binding to ferrous porphyrins have been used to examine two different mechanisms which have been proposed to explain protein control of heme reactivity.The results indicate that electronic control through ?-donor/acceptor interactions with the macrocyclic porphyrin rings is not important in controlling the heme reactivity of hemoglobin or of other hemoproteins.However, hydrogen bonding to the metal-bound imidazole can have a powerful influence on heme reactivity.