Spectroscopic Investigation of the Carbon Monoxide-Oxygen Reaction

Hornbeck, George A.; Hopfield, H. S.

doi:10.1063/1.1747098

Cited by 26 publications

(8 citation statements)

References 17 publications

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“…The C02* in the above equation is probably in a 3 state (S), so that the reaction can be written as 0(3P) + CO(1S+) -9-002*(3 ) -9-002(1 ,+) + hv (5) In the CO + 02 explosion flame the intensity of the continuum is found to decrease with increase in the oxygen-carbon fuel ratio (11). The banded structure, which is most prominent as the amount of oxygen is increased above the stoichiometric ratio, has been identified (14) as the Schumann-Runge system of oxygen. The carbon monoxide flame bands have not been observed in the explosion flame.…”

Section: The Carbon Monoxide Flamementioning

confidence: 96%

Kinetics of Combustion. Relation to Emission Flame Spectroscopy

Laidler¹,

Shuler²

1951

Ind. Eng. Chem.

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Section: The Carbon Monoxide Flamementioning

confidence: 96%

Kinetics of Combustion. Relation to Emission Flame Spectroscopy

Laidler¹,

Shuler²

1951

Ind. Eng. Chem.

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“…In the rather simple case of 20(! ) -» 2(' ) + O (IP) (86) it is possible to determine the dimensions of the activated complex, since it most probably is located at the crossing point of the potential curves for 2(* ) + 0(\D) and 2(! ) + 0(3P), and for this reaction Fl can thus be evaluated explicitly (204).…”

Section: The Transmission Coefficientmentioning

confidence: 99%

“…(a) The carbon dioxide continuum One of the most thoroughly investigated reactions in which a two-body association process is believed to play a role is the carbon monoxide flame (50,63,86). The continuum appearing in this flame has been attributed (49) to the association reaction: CO + 0 -» CO?…”

Section: Two-body Association Reactionsmentioning

confidence: 99%

Elementary Reactions in the Gas Phase Involving Excited Electronic States.

Laidler¹,

Shuler²

1951

Chem. Rev.

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“…The fact that the Schumann-Runge bands have been observed in the hydrogen (1,5,31), carbon inonoxide (18), and anlmonia (19) flames suggests that there may be a reaction such as common to all of these flames, by which the 02*(3Z;) is produced (Ref. 23, 11.…”

Section: Potential-energy Sz~rfacesmentioning

confidence: 99%

“…But also the C02* (311) is brought t o the ground state by this radiationless transitioil and less will be a t hand to give the continuum reaction [18] (23, p. 72).…”

Section: Potential-energy Sz~rfacesmentioning

confidence: 99%

Reactions Involving Electronically-Excited Oxygen

Gill¹,

Laidler²

1958

Can. J. Chem.

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The vario~is electronically-excited states of oxygerl atoms and molec~~les are briefly considered. Certain reactio~ls involving sonle of these electronically-excited species are then disc~issed with reference to the experimental evidence and to the potential-energy surfaces on which they occur. In the case of the mercury-photosensitized formation of ozone fro111 osygen it is concluded that both experilnental evidence and theoretical arguments point to the fact that the oxygen molecule initially formed is in an excited 32,f state. Consideration is also given to the mechanism of formatioi~ of O?* in the carbon monoxide flame and in other flames. The reactions 0+03 -t 20,* and 0 2 * + 0 3 -t 2 0 ? + 0 are also disc~issed briefly. INTRODUCTIONA considerable number of electronically-excited states of oxygen molecules and atoms are known to exist, and spectroscopic data have provided detailed information about many of them. Several of these excited species are known to be involved ill chemical reactions, either as reactants or as products. The purpose of this paper is to refer to a few of the more common reactions of this type, to discuss the evidence for the nature of the species involved, and to consider detailed reaction mechanisms from the standpoint of the method of potential-energy surfaces.~ ELECTRONIC STATESThe electronic states of 0 and 0 2 will be mentioned only very briefly, since this matter has been fully discussed elsewhere (14,15). According to the Wigner-Witmer correlation rules two atoms of oxygen in their ground states (3P,) can produce, on combiilation, 18 different electronic species of the molecule, while one ground state atom plus one in the first excited level ('D,) can give an additional 18 species. Only a few of these are stable or relatively abundant, and Fig. 1 shows the potential-energy curves for those states of the molecule that have been observed spectroscopically. The IB; and 3Au states (3Au not drawn) have been detected by Herzberg (IG).The ground state of 0 2 (38;) and the first two excited states ('A, and '2;) have the electronic configuration and dissociate to normal 3P, atoms as shown in the figure. Additional excited states are formed by the transfer of an electron from the bonding (a,2p) orbital to the antibonding (~~2 9 ) orbital to giveThis configuration could produce the states 'Zi, ' 8;, 'A,, 32,+, 32;, and 3A,, of which ' 2;, 32,+, 32y, and 3A, have been observed. 3Z; dissociates into 0(3P,)+O(1D,), the rest into ground-state 0(3P,) atoms. For personal use only.

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Spectroscopic Investigation of the Carbon Monoxide-Oxygen Reaction

Cited by 26 publications

References 17 publications

Kinetics of Combustion. Relation to Emission Flame Spectroscopy

Kinetics of Combustion. Relation to Emission Flame Spectroscopy

Elementary Reactions in the Gas Phase Involving Excited Electronic States.

Reactions Involving Electronically-Excited Oxygen

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