The Chemistry of Metal Chelate Rings. IV. Electrophilic Substitution of Optically Active Tris-acetylacetonates

1963 ◽  
Vol 2 (3) ◽  
pp. 576-580 ◽  
Author(s):  
James P. Collman ◽  
Robert P. Blair ◽  
Roger L. Marshall ◽  
Laird Slade
Keyword(s):  
Electrophilic Substitution ◽  
Metal Chelate ◽  
Optically Active ◽  
Chelate Rings

Conformational analysis of EDTA-type chromium(III) complexes with β-propionato metal chelate rings

2002 ◽  
Vol 609 (1-3) ◽  
pp. 1-9 ◽  
Author(s):  
Sonja Grubišić ◽  
Maja Gruden ◽  
S.R. Niketić ◽  
Narumi Sakagami- Yoshida ◽  
Sumio Kaizaki
Keyword(s):  
Conformational Analysis ◽  
Metal Chelate ◽  
Chelate Rings

scholarly journals Strong stacking interactions of metal–chelate rings are caused by substantial electrostatic component

2019 ◽  
Vol 48 (19) ◽  
pp. 6328-6332 ◽  
Author(s):  
Dušan P. Malenov ◽  
Snežana D. Zarić
Keyword(s):  
Metal Chelate ◽  
Electrostatic Energy ◽  
Stacking Interactions ◽  
Energy Component ◽  
Electrostatic Component ◽  
Chelate Rings

Stacking interactions of metal–chelate rings are strong due to very strong electrostatic energy component.

Disubstituted hydroxamic acids and the determination of vanadium

1968 ◽  
Vol 46 (2) ◽  
pp. 327-330 ◽  
Author(s):  
R. M. Cassidy ◽  
D. E. Ryan
Keyword(s):  
Extinction Coefficient ◽  
Metal Chelate ◽  
Visible Region ◽  
Hydroxamic Acids ◽  
Molecular Extinction Coefficient ◽  
Sensitivity Increase ◽  
Chelate Rings

A number of disubstituted hydroxamic acids were investigated as possible replacements for benzoylphenylhydroxylamine in the determination of vanadium; none is superior. At 378 mμ., p-phenylazobenzoylphenylhydroxylamine shows a marked sensitivity increase but selectivity is poor. In the visible region, there is an increase in molecular extinction coefficient as the reagent π system is extended; how ever, complete coplanarity of the aromatic and metal chelate rings is not possible and the increase is not large enough to be of much practical value.

Preparation of silicas combined with optically active organic compounds: optical resolution of metal chelate complexes on the silica composites

1995 ◽  
Vol 697 (1-2) ◽  
pp. 279-287 ◽  
Author(s):  
Fujio Mizukami ◽  
Hiroyuki Izutsu ◽  
Tetsuya Osaka ◽  
Yoshikatsu Akiyama ◽  
Naokazu Uiji ◽  
...  
Keyword(s):  
Organic Compounds ◽  
Metal Chelate ◽  
Optical Resolution ◽  
Optically Active ◽  
Chelate Complexes
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