Hexacoordinate oxy-globin models Fe(Por)(NH3)(O2) react with NO to form only the nitrato analogs Fe(Por)(NH3)(η1-ONO2), even at ~100 K.
The oxy-globin models Fe(Por)(NH(3))(O(2)), prepared by sequential reactions of O(2) ((18)O(2)) and NH(3) with thin porous layers of Fe(II)(Por), react with NO ((15)NO) at 80-100 K to form only the low-spin nitrato complexes Fe(Por)(NH(3))(η(1)-ONO(2)), thus implying that peroxynitrite intermediates, if formed, must undergo very facile isomerization to the nitrato analog.
Molecule Structure Research Centre (MSRC) of the Scientific and Technological Centre of Organic and Pharmaceutical Chemistry, National Academy of Sciences, 375014, Yerevan, Armenia. kurto@netsys.am
Tigran S
TS
Kurtikyan
Peter C
PC
Ford
D040761:Biomimetic Materials / Q000737:chemistry*; D005290:Ferric Compounds / Q000737:chemistry*; D005296:Ferrous Compounds / Q000737:chemistry*; D006454:Hemoglobins; D009569:Nitric Oxide / Q000737:chemistry*; D030421:Peroxynitrous Acid / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D013696:Temperature
D005290:Ferric Compounds; D005296:Ferrous Compounds; D006454:Hemoglobins; C402601:hemoglobin glutamer-200; D030421:Peroxynitrous Acid; D009569:Nitric Oxide