Solid-state radiation chemistry of selected transition metal chelates of glycine and alanine

1968 ◽  
Vol 72 (3) ◽  
pp. 922-925 ◽  
Author(s):  
W. Carl Gottschall ◽  
Bert M. Tolbert
Keyword(s):  
Solid State ◽  
Transition Metal ◽  
Radiation Chemistry ◽  
Metal Chelates ◽  
Transition Metal Chelates ◽  
State Radiation

The Quenching of Singlet Oxygen (1Δg) by Transition Metal Chelates

1974 ◽  
Vol 52 (22) ◽  
pp. 3728-3737 ◽  
Author(s):  
D. J. Carlsson ◽  
T. Suprunchuk ◽  
D. M. Wiles
Keyword(s):  
Solid State ◽  
Liquid Phase ◽  
Transition Metal ◽  
Rate Constants ◽  
Metal Chelates ◽  
Microwave Source ◽  
Transition Metal Chelates ◽  
Diffusion Controlled ◽  
Quenching Mechanisms ◽  
Β Carotene

Various transition metal chelates were found to quench 1O2 in the liquid phase. 1O2 was generated either photochemically, from an ozonide, or with a microwave source and reacted with rubrene or 3-methyl-2-pentene. Rate constants for 1O2 quenching by the chelates were measured in various solvents using the three 1O2 sources, and compared with the constants of previously known 1O2 quenchers. The most efficient chelates quenched 1O2 at close to the diffusion controlled rate, as did β-carotene. Some quenchers of 1O2 in the liquid phase were qualitatively shown to quench in the solid state. The possible 1O2 quenching mechanisms of the chelates are discussed.

scholarly journals Stability Studies of Transition Metal Chelates of 5-Bromosalicylidene-4-methoxyaniline andSalicylidene-2,3-dimethylaniline as Ligands

2011 ◽  
Vol 8 (4) ◽  
pp. 1911-1915
Author(s):  
N. G. Nadkarni ◽  
K. V. Mangaonkar
Keyword(s):  
Ionic Strength ◽  
Transition Metal ◽  
Stability Constants ◽  
Metal Chelates ◽  
Ternary Complexes ◽  
Water Medium ◽  
Stability Studies ◽  
Binary And Ternary Complexes ◽  
Transition Metal Chelates ◽  
The Stability

Binary and ternary complexes of the type M-Y and M-X-Y [M = Mn(II), Ni(II), Cu(II) and Zn(II); X = 5-bromosalicylidene-4-methoxyaniline and Y = salicylidene-2,3-dimethylaniline] have been examined pH-metrically at 27±0.5°C and at constant ionic strength, μ = 0.1 M (KCl) in 75 : 25(v/v) 1,4-dioxne-water medium. The stability constants for binary (M-Y) and ternary (M-X-Y) systems were calculated.

Transition metal chelates: Synthesis, physicochemical, thermal, and biological studies

2016 ◽  
Vol 86 (4) ◽  
pp. 901-906 ◽  
Author(s):  
N. J. Suryawanshi ◽  
G. B. Pethe ◽  
A. R. Yaul ◽  
A. S. Aswar
Keyword(s):  
Transition Metal ◽  
Metal Chelates ◽  
Transition Metal Chelates ◽  
Biological Studies
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