2-Methoxy-2-butene Singlet oxygen

Gorman, A.A.; Gould, I.R.; Hamblett, I.
J. Am. Chem. Soc. 104, 7098-7104 (1982)

Reaction: 2-Methoxy-2-butene + ¹O₂^* ® products and/or physical quenching
Solvent: Cyclohexane

Enthalpy of activation = 4(kJ mol^-1), Entropy of activation = -103(J K^-1 mol^-1), Temperature range 290 to 340 K
k = 2.5 × 10⁶(L mol^-1 s^-1)

Experimental method: Flash photolysis
Analytical method: vis-UV absorption
Data type: Absolute value measured directly using indicator
Excitation wavelength: 337 nm

Photosensitizer = Anthracene; Indicator = 1,3-Diphenylisobenzofuran.

Gorman, A.A.; Gould, I.R.; Hamblett, I.
J. Am. Chem. Soc. 104, 7098-7104 (1982)

Reaction: 2-Methoxy-2-butene + ¹O₂^* ® products and/or physical quenching
Solvent: Toluene

Enthalpy of activation = -1(kJ mol^-1), Entropy of activation = -115(J K^-1 mol^-1), Temperature range 250 to 340 K
k = 1.2 × 10⁷(L mol^-1 s^-1)

Experimental method: Flash photolysis
Analytical method: vis-UV absorption
Data type: Absolute value measured directly using indicator
Excitation wavelength: 337 nm

Photosensitizer = Anthracene; Indicator = 1,3-Diphenylisobenzofuran.

Gorman, A.A.; Gould, I.R.; Hamblett, I.
J. Am. Chem. Soc. 104, 7098-7104 (1982)

Reaction: 2-Methoxy-2-butene + ¹O₂^* ® products and/or physical quenching
Solvent: Acetonitrile

Enthalpy of activation = -3(kJ mol^-1), Entropy of activation = -114(J K^-1 mol^-1), Temperature range 250 to 340 K
k = 2.4 × 10⁷(L mol^-1 s^-1)

Experimental method: Flash photolysis
Analytical method: vis-UV absorption
Data type: Absolute value measured directly using indicator
Excitation wavelength: 337 nm

Photosensitizer = Anthracene; Indicator = 1,3-Diphenylisobenzofuran.

Gorman, A.A.; Gould, I.R.; Hamblett, I.
J. Am. Chem. Soc. 104, 7098-7104 (1982)

Reaction: 2-Methoxy-2-butene + ¹O₂^* ® products and/or physical quenching
Solvent: Acetone

Enthalpy of activation = 0.0(kJ mol^-1), Entropy of activation = -119(J K^-1 mol^-1), Temperature range 240 to 320 K
k = 1.1 × 10⁷(L mol^-1 s^-1)

Experimental method: Flash photolysis
Analytical method: vis-UV absorption
Data type: Absolute value measured directly using indicator
Excitation wavelength: 337 nm

Photosensitizer = Anthracene; Indicator = 1,3-Diphenylisobenzofuran.

Gorman, A.A.; Gould, I.R.; Hamblett, I.
J. Am. Chem. Soc. 104, 7098-7104 (1982)

Reaction: 2-Methoxy-2-butene + ¹O₂^* ® products and/or physical quenching
Solvent: Methanol

Enthalpy of activation = -2(kJ mol^-1), Entropy of activation = -116(J K^-1 mol^-1), Temperature range 250 to 310 K
k = 1.3 × 10⁷(L mol^-1 s^-1)

Experimental method: Flash photolysis
Analytical method: vis-UV absorption
Data type: Absolute value measured directly using indicator
Excitation wavelength: 337 nm

Photosensitizer = Anthracene; Indicator = 1,3-Diphenylisobenzofuran.