Novel synthetic method for cobalt complexes: Structural and kinetic study of [Co(nta)(py)(H2O)]

2012 ◽  
Vol 15 ◽  
pp. 40-42 ◽  
Author(s):  
N.I. Barnard ◽  
H.G. Visser
Keyword(s):  
Kinetic Study ◽  
Cobalt Complexes ◽  
Synthetic Method

Kinetic study of ethylene polymerization over 2,6-bis(imino)pyridine cobalt complexes with bulky substituents in ligand

2013 ◽  
Vol 366 ◽  
pp. 353-358 ◽  
Author(s):  
Artem A. Barabanov ◽  
Nina V. Semikolenova ◽  
Gennady D. Bukatov ◽  
Ljudmila G. Echevskaya ◽  
Mikhail A. Matsko ◽  
...  
Keyword(s):  
Kinetic Study ◽  
Ethylene Polymerization ◽  
Cobalt Complexes

Kinetic study on the electron transfer reactions of metalloproteins with cobalt complexes

1997 ◽  
Vol 67 (1-4) ◽  
pp. 404
Author(s):  
A. Itaya ◽  
H. Sugawara ◽  
M. Nakakomi ◽  
A. Nagasawa ◽  
T. Kohzuma ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Kinetic Study ◽  
Cobalt Complexes ◽  
Transfer Reactions ◽  
Electron Transfer Reactions

scholarly journals Copolymerization of epoxides with cyclic anhydrides catalyzed by dinuclear cobalt complexes

2018 ◽  
Vol 14 ◽  
pp. 2779-2788 ◽  
Author(s):  
Yo Hiranoi ◽  
Koji Nakano
Keyword(s):  
Catalytic Activity ◽  
Cobalt Complex ◽  
Cobalt Complexes ◽  
High Catalytic Activity ◽  
Synthetic Method ◽  
Salen Complex ◽  
Salen Complexes ◽  
Mononuclear Cobalt ◽  
Cyclic Anhydrides ◽  
Alternating Copolymerization

The alternating copolymerization of epoxides with cyclic anhydrides (CAs) is a highly diverse synthetic method for polyesters as the polymers’ architectures and properties can be easily controlled depending on the combination of two monomers. Thus, a variety of catalyst designs has been reported to prepare the desired copolymers efficiently. We herein report dinuclear cobalt–salen complexes with a benzene ring as a linker and their activities in copolymerization reactions. The dinuclear cobalt complexes showed a higher catalytic activity for the copolymerization of propylene oxide with phthalic anhydride than the corresponding mononuclear cobalt–salen complex and achieved one of the highest turnover frequencies ever reported. A variety of epoxides and CAs were also found to be copolymerized successfully by the dinuclear cobalt complex with a high catalytic activity.

A kinetic study of controlling nitrogen in process for boron steel by using30N2isotope gas

2008 ◽  
Vol 105 (12) ◽  
pp. 601-608
Author(s):  
Seung Min Han ◽  
Dong Joon Min ◽  
Joo Hyun Park ◽  
Jung Ho Park ◽  
Jong Min Park
Keyword(s):  
Kinetic Study ◽  
Boron Steel

Kinetic Study of the Effect of Heparin on the Amidase Activity of Trypsin, Plasmin and Urokinase

1983 ◽  
Vol 49 (03) ◽  
pp. 199-203 ◽  
Author(s):  
V M Yomtova ◽  
N A Stambolieva ◽  
B M Blagoev
Keyword(s):  
Kinetic Study ◽  
Active Center ◽  
Simultaneous Presence ◽  
Amidase Activity ◽  
Competitive Inhibitors ◽  
Uncompetitive Inhibitor

SummaryIt was found that the effect of heparin on the amidase activity of urokinase (E C 3.4.21.31), plasmin (E C 3.4.21.7) and trypsin (E C 3.4.21.4) depended on the substrate used. No effect of heparin on the amidase activity of urokinase and trypsin was observed when Pyro Glu-Gly-Arg-p-nitroanilide (S-2444) and α-N-acetyl-L-lysine-p-nitroanilide (ALNA) were used as substrates. Heparin acted as a uncompetitive inhibitor of trypsin (Ki = 1.2×10-6 M), plasmin (Ki = 4.9×10-6 M) and urokinase (Ki = l.0×10-7 M) when Bz-Phe-Val-Arg-p-nitroanilide (S-2160), H-D-Val-Leu-Lys-p-nitroanilide (S-2251) and plasminogen, respectively, were used as substrates. These results, as well as the data obtained by studying the effect of the simultaneous presence of heparin and competitive inhibitors suggest that although heparin is not bound at the active center of these enzymes, it may influence the effectivity of catalysis.

A kinetic study of the metathesis of propene on a rhenium-aluminium catalyst

1981 ◽  
Vol 31 (1) ◽  
pp. 388-394 ◽  
Author(s):  
Mahmoud El-Sawi ◽  
Antonio Iannibello ◽  
Fernando Morelli ◽  
Ganfranco Gatalano ◽  
Francesco Intrieri ◽  
...  
Keyword(s):  
Kinetic Study
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