Stopped-Flow Investigation of Trifluoromethanesulfonic Acid Initiated Cationic Oligomerization oftrans-1,3-Diphenyl-1-butene. 1. Analysis of Products and UV−Visible Spectroscopic Study

1996 ◽  
Vol 29 (18) ◽  
pp. 5777-5783 ◽  
Author(s):  
Bernadette Charleux ◽  
Alain Rives ◽  
Jean-Pierre Vairon ◽  
Krzysztof Matyjaszewski
Keyword(s):  
Spectroscopic Study ◽  
Trifluoromethanesulfonic Acid ◽  
Stopped Flow ◽  
Flow Investigation ◽  
Uv Visible

The inclusion of diflunisal by ?-cyclodextrin and permethylated?-cyclodextrin. A UV-visible and19F nuclear magnetic resonance spectroscopic study

1988 ◽  
Vol 6 (2) ◽  
pp. 183-191 ◽  
Author(s):  
Stephen F. Lincoln ◽  
Andrea M. Hounslow ◽  
John H. Coates ◽  
Rosa P. Villani ◽  
Robert L. Schiller
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Spectroscopic Study ◽  
Uv Visible ◽  
Nuclear Magnetic

scholarly journals Reaction of a satirically hindered iron(III) porphyrin with peroxyacetic acid: Degradation kinetics

2005 ◽  
Vol 70 (8-9) ◽  
pp. 1105-1111 ◽  
Author(s):  
P. Prakash ◽  
Mary Francisca
Keyword(s):  
Reaction Mechanism ◽  
Spectroscopic Study ◽  
Kinetic Analysis ◽  
Peracetic Acid ◽  
Degradation Kinetics ◽  
Oxidative Degradation ◽  
Peroxyacetic Acid ◽  
Porphyrin Ligand ◽  
Uv Visible ◽  
Reversible Formation

A kinetic analysis of the reaction between peracetic acid (AcOOH), and tetrakis (pentafluorophenyl) - 21H, 23H-porphine iron(III) chloride Fe(F20TPP)Cl, in acetonitrile showed that the peracetic acid oxidatively destroys Fe(F20TPP)Cl. This is in contrast to an assumption that the oxidative degradation of metalloporphyrins can be prevented by the introduction of electron-withdrawing substituents into the phenyl groups of the porphyrin ligand. A UV-visible spectroscopic study showed a degree of macro cycle destruction of the tetrapyrrole conjucation of the metalloporphyrin. The degradation takes place via oxoperferryl species. The first step of the reaction mechanism is the reversible formation of an adduct ?X? (k1/k-1) between Fe(F20TPP)Cl and peracetic acid, followed by an irreversible step (k2) for the formation of oxoperferryl species.

Nafion-supported metal complexes: a resonance Raman and UV-visible spectroscopic study

1993 ◽  
Vol 24 (12) ◽  
pp. 897-901 ◽  
Author(s):  
Angela L. Maclean ◽  
Robert S. Armstrong ◽  
Brendan J. Kennedy
Keyword(s):  
Metal Complexes ◽  
Spectroscopic Study ◽  
Resonance Raman ◽  
Uv Visible ◽  
Supported Metal Complexes ◽  
Supported Metal
Sign in / Sign up

Export Citation Format

Share Document