2-Methyl-2-butene
Singlet oxygen
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2-Methyl-2-butene
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Boneva, M.; Ivanov, S.K.; Oliveros, E.; Braun, A.M.
J. Photochem. Photobiol., A 68, 343-351 (1992)
Reaction: CH3CH=C(CH3)2 + 1O2* ®
products and/or physical quenching
Solvent: CD3OD
k = 9.4 × 105(L mol-1 s-1)
Experimental method: Photolysis
Analytical method: infrared luminescence
Data type: Derived from steady state measurements
Excitation wavelength: 547 nm
Photosensitizer = Rose Bengal dianion. used solvent kd = 4.0 × 103 s-1.
Boneva, M.; Ivanov, S.K.; Oliveros, E.; Braun, A.M.
J. Photochem. Photobiol., A 68, 343-351 (1992)
Reaction: CH3CH=C(CH3)2 + 1O2* ®
products and/or physical quenching
Solvent: MTAE
k = 1.1 × 106(L mol-1 s-1)
Experimental method: Photolysis
Analytical method: infrared luminescence
Data type: Derived from steady state measurements
Excitation wavelength: 532 nm
Photosensitizer = 5,10,15,20-Tetraphenylporphine. used solvent kd = 3.4 × 104 s-1.
Hurst, J.R.; Wilson, S.L.; Schuster, G.B.
Tetrahedron 41, 2191-2197 (1985)
Reaction: CH3CH=C(CH3)2 + 1O2* ®
products and/or physical quenching
Solvent: CD3COCD3
Enthalpy of activation = 5(kJ mol-1), Entropy of activation = -113(J K-1 mol-1)
k = 1.3 × 106(L mol-1 s-1), T = 298K
Experimental method: Flash photolysis
Analytical method: infrared luminescence
Data type: Absolute value measured directly
Excitation wavelength: 532 nm
Photosensitizer = 5,10,15,20-Tetraphenylporphine. Studied at 183-310 K.
Hurst, J.R.; Wilson, S.L.; Schuster, G.B.
Tetrahedron 41, 2191-2197 (1985)
Reaction: CH3CH=C(CH3)2 + 1O2* ®
products and/or physical quenching
Solvent: CS2
Enthalpy of activation = 3(kJ mol-1), Entropy of activation = -125(J K-1 mol-1)
k = 7.2 × 105(L mol-1 s-1), T = 298K
Experimental method: Flash photolysis
Analytical method: infrared luminescence
Data type: Absolute value measured directly
Excitation wavelength: 532 nm
Photosensitizer = 5,10,15,20-Tetraphenylporphine. Studied at 183-310 K.
Gollnick, K.; Griesbeck, A.
Tetrahedron Lett. 25, 725-728 (1984)
Reaction: CH3CH=C(CH3)2 + 1O2* ®
products
Solvent: C6H6
b = 3.5 × 10-2(mol L-1), T = 286K
Experimental method: Photolysis
Analytical method: oxygen consumption
Data type: Derived from steady state measurements
Photosensitizer = 5,10,15,20-Tetraphenylporphine; Actinometer = 2,5-Dimethylfuran; meas. kd/k = 0.035 mol/L; meas. 1 + kq/kr = 1.
[Indicator] = 4 × 10-2 (mol L-1).
Gollnick, K.; Griesbeck, A.
Tetrahedron Lett. 25, 725-728 (1984)
Reaction: CH3CH=C(CH3)2 + 1O2* ®
products
Solvent: CCl4
b = 1.5(mol L-1), T = 286K
Experimental method: Photolysis
Analytical method: oxygen consumption
Data type: Derived from steady state measurements
Photosensitizer = 5,10,15,20-Tetraphenylporphine; Actinometer = 2,5-Dimethylfuran; meas. kd/k = 1.5 × 10-3 mol/L; meas. 1 + kq/kr = 1.
[Indicator] = 4 × 10-2 (mol L-1).
Gollnick, K.; Griesbeck, A.
Tetrahedron Lett. 25, 725-728 (1984)
Reaction: CH3CH=C(CH3)2 + 1O2* ®
products
Solvent: CH2Cl2
b = 5.8(mol L-1), T = 286K
Experimental method: Photolysis
Analytical method: oxygen consumption
Data type: Derived from steady state measurements
Photosensitizer = 5,10,15,20-Tetraphenylporphine; Actinometer = 2,5-Dimethylfuran; meas. kd/k = 5.8 × 10-3 mol/L; meas. 1 + kq/kr = 1.
[Indicator] = 4 × 10-2 (mol L-1).
Gollnick, K.; Griesbeck, A.
Tetrahedron Lett. 25, 725-728 (1984)
Reaction: CH3CH=C(CH3)2 + 1O2* ®
products
Solvent: CH3CN
b = 11(mol L-1), T = 286K
Experimental method: Photolysis
Analytical method: oxygen consumption
Data type: Derived from steady state measurements
Photosensitizer = Rose Bengal dianion; Actinometer = 2,5-Dimethylfuran; meas. kd/k = 0.011 mol/L; meas. 1 + kq/kr = 1.
[Indicator] = 4 × 10-2 (mol L-1).
Gollnick, K.; Griesbeck, A.
Tetrahedron Lett. 25, 725-728 (1984)
Reaction: CH3CH=C(CH3)2 + 1O2* ®
products
Solvent: CH3COCH3
b = 20(mol L-1), T = 286K
Experimental method: Photolysis
Analytical method: oxygen consumption
Data type: Derived from steady state measurements
Photosensitizer = Rose Bengal dianion; Actinometer = 2,5-Dimethylfuran; meas. kd/k = 0.020 mol/L; meas. 1 + kq/kr = 1.
[Indicator] = 4 × 10-2 (mol L-1).
Gollnick, K.; Griesbeck, A.
Tetrahedron Lett. 25, 725-728 (1984)
Reaction: CH3CH=C(CH3)2 + 1O2* ®
products
Solvent: CHCl3
b = 7.2(mol L-1), T = 286K
Experimental method: Photolysis
Analytical method: oxygen consumption
Data type: Derived from steady state measurements
Photosensitizer = 5,10,15,20-Tetraphenylporphine; Actinometer = 2,5-Dimethylfuran; meas. kd/k = 7.2 × 10-3 mol/L; meas. 1 + kq/kr = 1.
[Indicator] = 4 × 10-2 (mol L-1).
Gollnick, K.; Griesbeck, A.
Tetrahedron Lett. 25, 725-728 (1984)
Reaction: CH3CH=C(CH3)2 + 1O2* ®
products
Solvent: CH3OH
b = 96(mol L-1), T = 286K
Experimental method: Photolysis
Analytical method: oxygen consumption
Data type: Derived from steady state measurements
Photosensitizer = Rose Bengal dianion; Actinometer = 2,5-Dimethylfuran; meas. kd/k = 0.096 mol/L. meas. 1 + kq/kr = 1.
[Indicator] = 4 × 10-2 (mol L-1).
Turro, N.J.; Chow, M.-F.; Kanfer, S.; Jacobs, M.
Tetrahedron Lett. 22, 3-6 (1981)
Reaction: CH3CH=C(CH3)2 + 1O2* ®
products and/or physical quenching
Solvent: CHCl3
k = 1.5 × 106(L mol-1 s-1)
Experimental method: Photolysis
Data type: Derived from steady state measurements using indicator
Photosensitizer = Indicator = Rubrene; used solvent kd = 1.7 × 104 s-1; k for indicator = 5.3 × 107 L/(mol·s).
Turro, N.J.; Chow, M.-F.; Kanfer, S.; Jacobs, M.
Tetrahedron Lett. 22, 3-6 (1981)
Reaction: CH3CH=C(CH3)2 + 1O2* ®
products and/or physical quenching
Solvent: CHCl3
k = 2.3 × 106(L mol-1 s-1)
Experimental method: Chemical reaction
Data type: Derived from steady state measurements using indicator
Indicator = Rubrene; k for indicator = 5.3 × 107 L/(mol·s); used solvent kd = 1.7 × 104 s-1; 1O2* from DMNO2.
Gollnick, K.; Hartmann, H.; Paur, H.
Oxygen and Oxy-Radicals in Chemistry and Biology, M.A.J. Rodgers and E.L. Powers (eds.), Academic Press, New York, NY, 1981, p.379-95
Reaction: CH3CH=C(CH3)2 + 1O2* ®
products and/or physical quenching
Solvent: CH3OH
k = 1.1 × 106(L mol-1 s-1), T = 286K
Photosensitizer = Rose Bengal bound to chloromethylated poly(styrene-co-divinylbenzene); method not reported.
Tanielian, C.; Chaineaux, J.
J. Polym. Sci., Polym. Chem. Ed. 17, 715-729 (1979)
Reaction: CH3CH=C(CH3)2 + 1O2* ®
products and/or physical quenching
Solvent: MeOH
k = 1.1 × 106(L mol-1 s-1)
used solvent kd = 1.1 × 105 s-1; Unpublished data.
Monroe, B.M.
J. Phys. Chem. 82, 15-18 (1978)
Reaction: CH3CH=C(CH3)2 + 1O2* ®
products and/or physical quenching
Solvent: CHCl3
k = 2.3 × 106(L mol-1 s-1)
Experimental method: Photolysis
Analytical method: vis-UV absorption
Data type: Derived from steady state measurements using indicator
Photosensitizer = Indicator = Rubrene; used solvent kd = 1.7 × 104 s-1; k for indicator = 5.3 × 107 L/(mol·s).
Brkic, D.; Forzatti, P.; Pasquon, I.; Trifiro, F.
J. Photochem. 5, 23-32 (1976)
Reaction: CH3CH=C(CH3)2 + 1O2* ®
products and/or physical quenching
Solvent: EtOH
b = 1.6(mol L-1)
Experimental method: Photolysis
Analytical method: gas chromatography
Data type: Derived from steady state measurements
Photosensitizer = Methylene Blue; meas. kd/k = 1.65 mol/L. Reported values are suspect since rate of oxidation depends on [O2] and data plots were nonlinear.
Foote, C.S.; Denny, R.W.
J. Am. Chem. Soc. 93, 5162-5167 (1971)
Reaction: CH3CH=C(CH3)2 + 1O2* ®
products
Reference Reaction: p-Chloro-a,b,b-trimethylstyrene + 1O2* ®
Solvent: MeOH
k/kreference = 4.5 × 10-1
Experimental method: Photolysis
Analytical method: chemical analysis
Data type: Relative value measured by steady state method
Photosensitizer = Rose Bengal dianion. Meas. k/kref = 0.45.
Koch, E.
Tetrahedron 24, 6295-6318 (1968)
Reaction: CH3CH=C(CH3)2 + 1O2* ®
products and/or physical quenching
Solvent: MeOH
Activation energy = 6.7(kJ mol-1)
b = 6.0 × 10-2(mol L-1), T = 293K
Experimental method: Photolysis
Analytical method: oxygen consumption
Data type: Derived from steady state measurements
Photosensitizer = 2',4',5',7'-Tetrachlorofluorescein dianion. meas. kd/k = 0.060 mol/L.
Koch, E.
Tetrahedron 24, 6295-6318 (1968)
Reaction: CH3CH=C(CH3)2 + 1O2* ®
products and/or physical quenching
Solvent: MeOH
Activation energy = 5.9(kJ mol-1)
b = 3.0 × 10-2(mol L-1), T = 293K
Experimental method: Photolysis
Analytical method: oxygen consumption
Data type: Derived from steady state measurements
Photosensitizer = Diacenaphtho[1,2-b:2',1'-d]thiophene. meas. kd/k = 3.0 × 10-2 mol/L.
Koch, E.
Tetrahedron 24, 6295-6318 (1968)
Reaction: CH3CH=C(CH3)2 + 1O2* ®
products and/or physical quenching
Solvent: MeOH
Activation energy = 6.7(kJ mol-1)
b = 6.0 × 10-1(mol L-1), T = 293K
Experimental method: Photolysis
Analytical method: oxygen consumption
Data type: Derived from steady state measurements
Photosensitizer = Rose Bengal dianion. meas. kd/k = 0.60 mol/L.
Koch, E.
Tetrahedron 24, 6295-6318 (1968)
Reaction: CH3CH=C(CH3)2 + 1O2* ®
products and/or physical quenching
Solvent: MeOH
Activation energy = 6.3(kJ mol-1)
b = 5.5 × 10-2(mol L-1), T = 293K
Experimental method: Photolysis
Analytical method: oxygen consumption
Data type: Derived from steady state measurements
Photosensitizer = Tetrachloroeosin dianion. meas. kd/k = 0.055 mol/L.
Koch, E.
Tetrahedron 24, 6295-6318 (1968)
Reaction: CH3CH=C(CH3)2 + 1O2* ®
products and/or physical quenching
Solvent: MeOH
Activation energy = 9.2(kJ mol-1)
b = 1.0 × 10-1(mol L-1), T = 293K
Experimental method: Photolysis
Analytical method: oxygen consumption
Data type: Derived from steady state measurements
Photosensitizer = Methylene Blue; meas. kd/k = 0.010 mol/L.
Gollnick, K.
Adv. Chem. Ser. 77, 78-101 (1968)
Reaction: CH3CH=C(CH3)2 + 1O2* ®
products and/or physical quenching
Solvent: MeOH
b = 5.5 × 10-2(mol L-1)
Method not reported. meas. kd/k = 0.055 mol/L.
Higgins, R.; Foote, C.S.; Cheng, H.
Adv. Chem. 77, 102-117 (1968)
Reaction: CH3CH=C(CH3)2 + 1O2* ®
products
Reference Reaction: (CH3)2C=C(CH3)2 + 1O2* ®
Solvent: MeOH, 50%, tert-BuOH, 50%
k/kreference = 4.5 × 10-2
T = 303K
Experimental method: Photolysis
Analytical method: gas chromatography
Data type: Relative value measured by steady state method
Photosensitizer = Rose Bengal dianion. Meas. k/kref = 4.5 × 10-2.
Higgins, R.; Foote, C.S.; Cheng, H.
Adv. Chem. 77, 102-117 (1968)
Reaction: CH3CH=C(CH3)2 + 1O2* ®
products
Reference Reaction: (CH3)2C=C(CH3)2 + 1O2* ®
Solvent: MeOH, 50%, tert-BuOH, 50%
k/kreference = 4.3 × 10-2
T = 303K
Experimental method: Chemical reaction
Analytical method: gas chromatography
Data type: Relative value measured by steady state method
1O2* from H2O2/Ca(OCl)2. Meas. k/kref = 4.4 × 10-2.
Higgins, R.; Foote, C.S.; Cheng, H.
Adv. Chem. 77, 102-117 (1968)
Reaction: CH3CH=C(CH3)2 + 1O2* ®
products
Reference Reaction: (CH3)2C=C(CH3)2 + 1O2* ®
Solvent: MeOH, 50%, tert-BuOH, 50%
k/kreference = 6.7 × 10-2
T = 303K
Experimental method: Chemical reaction
Analytical method: gas chromatography
Data type: Relative value measured by steady state method
1O2* from H2O2/NaOCl. Meas. k/kref = 6.7 × 10-2.
Higgins, R.; Foote, C.S.; Cheng, H.
Adv. Chem. 77, 102-117 (1968)
Reaction: CH3CH=C(CH3)2 + 1O2* ®
products
Reference Reaction: (CH3)2C=C(CH3)2 + 1O2* ®
Solvent: MeOH, 50%, tert-BuOH, 50%
k/kreference = 2.4 × 10-2
T = 303K
Experimental method: Photolysis
Analytical method: gas chromatography
Data type: Relative value measured by steady state method
Photosensitizer = Rose Bengal dianion. Meas. k/kref = 2.4 × 10-2.
Higgins, R.; Foote, C.S.; Cheng, H.
Adv. Chem. 77, 102-117 (1968)
Reaction: CH3CH=C(CH3)2 + 1O2* ®
products
Reference Reaction: (CH3)2C=C(CH3)2 + 1O2* ®
Solvent: MeOH, 50%, tert-BuOH, 50%
k/kreference = 2.9 × 10-2
T = 303K
Experimental method: Chemical reaction
Analytical method: gas chromatography
Data type: Relative value measured by steady state method
1O2* from H2O2/NaOCl,. Meas. k/kref = 2.9 × 10-2.