Spectroscopic studies of lanthanide ion binding to multidentate ligands in aqueous solution. 3. Optically active Tb(EHPG)(L)n and Tb(DPA)m(L)n complexes

1981 ◽  
Vol 20 (8) ◽  
pp. 2616-2622 ◽  
Author(s):  
Anupam. Das Gupta ◽  
F. S. Richardson
Keyword(s):  
Aqueous Solution ◽  
Spectroscopic Studies ◽  
Optically Active ◽  
Ion Binding ◽  
Multidentate Ligands ◽  
Lanthanide Ion

Ionic effects on Supramolecular Hosts: Solvation and Counter-ion Binding in Polar Media

2021 ◽  
Author(s):  
Nicolas Moreno-Gómez ◽  
Edgar Vargas ◽  
Richard Buchner
Keyword(s):  
Aqueous Solution ◽  
Supramolecular Chemistry ◽  
Ion Binding ◽  
Host Molecules ◽  
Counter Ion ◽  
Polar Media ◽  
Counter Ion Binding ◽  
Ionic Effects

For the progress of synthetic supramolecular chemistry in aqueous solution the design of host molecules soluble in this medium is essential. A possible route is the introduction of ionic residues,...

Secondary structure of pig skin proteodermatan sulfate: A perspective from Raman spectroscopic studies in aqueous solution

Biopolymers ◽  
1989 ◽  
Vol 28 (11) ◽  
pp. 1935-1938 ◽  
Author(s):  
V. Renugopalakrishnan ◽  
S. Zheng ◽  
A. T. Tu ◽  
S. P. Damle
Keyword(s):  
Aqueous Solution ◽  
Secondary Structure ◽  
Spectroscopic Studies ◽  
Raman Spectroscopic ◽  
Pig Skin

Raman spectroscopic studies of complex forming of Zn(II) with hydroxyethanediphosphonic acid in an aqueous solution

1989 ◽  
Vol 50 (3) ◽  
pp. 285-288
Author(s):  
L. M. Myund ◽  
E. A. Bus'ko ◽  
S. N. Terekhin ◽  
K. A. Burkov
Keyword(s):  
Aqueous Solution ◽  
Spectroscopic Studies ◽  
Raman Spectroscopic

scholarly journals Metal Ion-Binding Properties of the Diphosphate Ester Analogue, Methylphosphonylphosphate, in Aqueous Solution

1999 ◽  
Vol 6 (6) ◽  
pp. 321-328 ◽  
Author(s):  
Bin Song ◽  
Jing Zhao ◽  
Fridrich Gregáň ◽  
Nadja Prónayová ◽  
S. Ali A. Sajadi ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Metal Ion ◽  
Minor Role ◽  
Ion Binding ◽  
Metal Ion Binding ◽  
Ph Titration ◽  
Role Based ◽  
The Stability ◽  
A Minor ◽  
Complex Stabilities

The stability constants of the 1:1 complexes formed between methylphosphonylphosphate (MePP3-), CH3P(O)2--O-PO32- , and Mg2+, Ca2+, Sr2+, Ba2+, Mn2+, Co2+, Ni2+, Cu2+, Zn2+,​ or Cd2+ (M2+) were determined by potentiometric pH titration in aqueous solution (25 C° ; l = 0.1 M, NaNO3 ). Monoprotonated M(H;MePP) complexes play only a minor role. Based on previously established correlations for M2+ -diphosphate monoester complex-stabilities and diphosphate monoester β-group. basicities, it is shown that the M(Mepp)- complexes for Mg2+ and the ions of the second half of the 3d series, including Zn2+ and Cd2+, are on average by about 0.15 log unit more stable than is expected based on the basicity of the terminal phosphate group in MePP3-. In contrast, Ba(Mepp)- and Sr(Mepp)- are slightly less stable, whereas the stability for Ca(Mepp)- is as expected, based on the mentioned correlation. The indicated increased stabilities are explained by an increased basicity of the phosphonyl group compared to that of a phosphoryl one. For the complexes of the alkaline earth ions, especially for Ba2+, it is suggested that outersphere complexation occurs to some extent. However, overall the M(Mepp)- complexes behave rather as expected for a diphosphate monoester ligand.

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