Enhanced Rates of Transition-Metal-Ion-Catalyzed Oxidation of S(IV) in Aqueous Aerosols: Insights into Sulfate Aerosol Formation in the Atmosphere

2021 ◽  
Author(s):  
Kyle J. Angle ◽  
Erin E. Neal ◽  
Vicki H. Grassian
Keyword(s):  
Transition Metal ◽  
Metal Ion ◽  
Sulfate Aerosol ◽  
Aerosol Formation ◽  
Transition Metal Ion ◽  
Catalyzed Oxidation ◽  
Aqueous Aerosols

Antioxidant‐Accelerated Oxidative Degradation: A Case Study of Transition Metal Ion Catalyzed Oxidation in Formulation

2004 ◽  
Vol 9 (2) ◽  
pp. 171-179 ◽  
Author(s):  
Jinyang Hong ◽  
Eva Lee ◽  
Joi C. Carter ◽  
Jeff A. Masse ◽  
Darlene A. Oksanen
Keyword(s):  
Transition Metal ◽  
Metal Ion ◽  
Oxidative Degradation ◽  
Transition Metal Ion ◽  
Catalyzed Oxidation

Oxidation of cumene by dioxygen. The effect of radical initiators on the rate of the reaction catalyzed by 3d-transition metal 2,4-pentanedionates

1991 ◽  
Vol 56 (2) ◽  
pp. 344-350
Author(s):  
Stanislav Luňák ◽  
Růžena Chmelíková ◽  
Pavel Lederer
Keyword(s):  
Transition Metal ◽  
Oxidation State ◽  
Ethyl Ether ◽  
Oxidation Rate ◽  
Metal Ion ◽  
Cumene Hydroperoxide ◽  
Transition Metal Ion ◽  
Radical Initiators ◽  
Catalyzed Oxidation ◽  
Dibenzoyl Peroxide

The effect of cumene hydroperoxide, benzoin ethyl ether and dibenzoyl peroxide on the oxidation of cumene by dioxygen catalyzed by VO(II), Cr(III), Mn(II), Fe(III), Co(II), Co(III) and Cu(II) 2,4-pentanedionates was studied. The rate of the catalyzed oxidation of cumene by dioxgen can not only be increased but also decreased by the presence of radical initiators, whereas in the absence of the catalyst the oxidation rate is always increased by the radical initiators. Which effect takes actually place is determined by the kind and oxidation state of the transition metal ion catalyst as well as by the kind of the radical initiator.

Oxidation of 1,2,3,4-tetrahydronaphthalene by dioxygen. Effect of the free radical initiators 1,2,3,4-tetrahydro-1-naphthylhydroperoxide and 2,2'-azobis(2-methylpropionitrile) on the reaction catalyzed by 2,4-pentanedionates of 3d transition metals

1990 ◽  
Vol 55 (4) ◽  
pp. 1015-1021 ◽  
Author(s):  
Stanislav Luňák ◽  
Marie Vašková ◽  
Pavel Lederer
Keyword(s):  
Free Radical ◽  
Transition Metal ◽  
Transition Metals ◽  
Oxidation State ◽  
Metal Ion ◽  
Catalyst Activity ◽  
Transition Metal Ion ◽  
Free Radical Initiator ◽  
Radical Initiators ◽  
Catalyzed Oxidation

The effect of the free radical initiators 1,2,3,4-tetrahydro-1-naphthylhydroperoxide and 2,2'-azobis(2-methylpropionitrile) on the oxidation of 1,2,3,4-tetrahydronaphthalene (tetraline) by dioxygen catalyzed by Cr(III), Mn(III), Fe(III), Co(II), Co(III) and Cu(II) 2,4-pentanedionates (acac) has been investigated. It has been found that the addition of a free radical initiator can increase the rate of catalyzed oxidation or decrease it. Which effect will operate depends on the kind of the catalyzing transition metal ion and its oxidation state. The results obtained indicate that the above free radical initiators act on the catalyzed oxidation of tetraline by affecting the catalyst activity.

Transition-metal ion-mediated morphological transformation of pyridine-based peptide nanostructures

2021 ◽  
Vol 45 (1) ◽  
pp. 153-161
Author(s):  
Narendra Singh ◽  
Ramesh Singh ◽  
Swati Sharma ◽  
Khushboo Kesharwani ◽  
Khashti Ballabh Joshi ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Ion ◽  
Chemical Structure ◽  
Morphological Transformation ◽  
Transition Metal Ion

Pyridine-mediated constitutionally isomeric artificial metallopeptides possess remarkable advantages over the natural counterparts mainly due to their tailor-made chemical structure.

Sign in / Sign up

Export Citation Format

Share Document