Co-oxygenation

CO Oxygen has a value of-2 (Guideline 4). For the sum of the oxidation numbers to be zero (Guideline 2), carbon must have an oxidation number of +2. 

A. These are linked by bonds from the y-CO oxygen atom of one to the pyridine-bearing W atom of the other, so that two... 

Figure 11. Reaction rate for the oxidation of CO with 02 over prereduced La2FeMnOe at 308° (0), 320° (f ), and 340°C (O). See Fig. 5 caption. Dependence on partial pressure of CO. Oxygen pressure was constant at 0.05 atm. Percentages indicated with extreme data points are CO conversions.

Crease, A. E., Legzdino, P. Chem. v(CO) infrared spectra changes indicate coordi-Comm. 1972, 268 nation of lanthanides to the CO oxygen... 

TOCO see Thiol-olefin co-oxygenation Tocopherols, TEARS assay, 668 Torsion angles, hydroperoxides, 690 Tosylhydrazones, superoxide reactions, 1036 Total hydroperoxides see Peroxide value Total oxidative capacity, titration methods, 674 Total polar phenols, colorimetry, 664 Toxicity... 

Sequence II O2—CO. Oxygen is first adsorbed on NiO(250) at 30°C. The sample is then evacuated at 30°C. (amount of irreversibly adsorbed oxygen, 1.9 cc. per gram), and carbon monoxide is adsorbed at the same temperature (Figure 3). The electrical conductivity of nickel oxide containing preadsorbed oxygen 1.8 X 10 5 (ohm cm.)"1 decreases during the adsorption of CO, and at the end of the adsorption, is identical to the conductivity of the pure oxide. Moreover, carbon dioxide is condensed in the cold trap. This shows that all ionized species are transformed into neutral species at the end of the interaction. 

When a layer of CO chemisorbed on iron is exposed to oxygen, the CO is not displaced even though sufficient oxygen is added to form several monolayers (15). In order to determine the fate of the chemisorbed CO, oxygen was slowly added to the system represented by A of Fig. 11. This caused the band at 5.10 u to gradually disappear and be replaced by a band at 4.70 n. The 4.70-/ band will be discussed later in the section on the effect of added gases on chemisorbed CO. 

---