Critical Evaluation Of Stability Constants Research Articles

ChemInform Abstract: Critical Evaluation of Stability Constants for Nucleotide Complexes with Protons and Metal Ions and the Accompanying Enthalpy Changes

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

Chemistry Takes Center Stage in Marine Science

The enormous breadth and range of applications of modern chemistry are reflected in the wide range of activities within IUPAC. As a result, individual chemists can often feel that their own (all-important!) specialization is under represented in lUPAC's work. As a marine chemist, I am not immune to those feelings, but can at the same time point to some significant contributions to marine science from the Analytical Chemistry Division (V) and the Chemistry and the Environment Division (VI). Much of the work of Division V on critical evaluation of stability constants and on chemical speciation modelling has been relevant to seawater systems, and in some cases specifically directed at seawater. Division VI has also contributed to marine sciences through books published in the IUPAC Series on Analytical and Physical Chemistry of Environmental Systems.

Critical Evaluation of Stability Constants of Metal Complexes of Complexones for Biomedical and Environmental Applications

AbstractFor Abstract see ChemInform Abstract in Full Text.

Critical Evaluation of Stability Constants of Metal Complexes of Complexones for Biomedical and Environmental Applications (IUPAC Technical Report)

Article Critical Evaluation of Stability Constants of Metal Complexes of Complexones for Biomedical and Environmental Applications (IUPAC Technical Report) was published on November 1, 2005 in the journal Chemistry International (volume 27, issue 6).

Critical evaluation of stability constants of metal complexes of complexones for biomedical and environmental applications* (IUPAC Technical Report)

Abstract Available experimental data on stability constants of proton (hydron) and metal complexes for seven complexones of particular biomedical and environmental interest: iminodiacetic acid [2,2'-azanediyldiacetic acid, IDA], (methylimino)diacetic acid [2,2'-(methylazanediyl)diacetic acid, MIDA]; 2,2',2'',2'''-{[(carboxymethyl)azanediyl]bis[(ethane-1,2-diyl)nitrilo]}tetraacetic acid (DTPA), 3,6,9,12-tetrakis(carboxymethyl)-3,6,9,12-tetraazatetradecanedioic acid (TTHA); 2,2',2''-(1,4,7-triazonane-1,4,7-triyl)triacetic acid (NOTA); 2,2',2'',2'''-(1,4,7,10-tetraazacyclododecane-1,4,7,10-tetrayl)tetraacetic acid (DOTA); 2,2',2'',2'''-(1,4,8,11-tetraazacyclotetradecane-1,4,8,11-tetrayl)tetraacetic acid (TETA), published in 1945-2000, have been critically evaluated. Some typical errors in stability constant measurements for particular complexones are summarized. Higher quality data are selected and presented as “Recommended” or “Provisional”.

Critical Evaluation of Stability Constants and Thermodynamic Functions of Metal Complexes of Crown Ethers (IUPAC Technical Report)

Article Critical Evaluation of Stability Constants and Thermodynamic Functions of Metal Complexes of Crown Ethers (IUPAC Technical Report) was published on May 1, 2003 in the journal Chemistry International (volume 25, issue 3).

Critical Evaluation of Stability Constants for α-Hydroxycarboxylic Acid Complexes with Protons and Metal Ions and the Accompanying Enthalpy Changes Part II: Aliphatic α-Hydroxycarboxylic Acids (IUPAC Technical Report)

Article Critical Evaluation of Stability Constants for α-Hydroxycarboxylic Acid Complexes with Protons and Metal Ions and the Accompanying Enthalpy Changes Part II: Aliphatic α-Hydroxycarboxylic Acids (IUPAC Technical Report) was published on July 1, 2003 in the journal Chemistry International (volume 25, issue 4).

Critical evaluation of stability constants for alpha-hydroxycarboxylic acid complexes with protons and metal ions and the accompanying enthalpy changes. Part II. Aliphatic 2-hydroxycarboxylic acids (IUPAC Technical Report)

Abstract Stability constants for different aliphatic 2-hydroxycarboxylic acid complexes in aqueous solutions with protons and metal ions published between 1960 and the end of 1994 have been critically evaluated.

Critical evaluation of stability constants and thermodynamic functions of metal complexes of crown ethers (IUPAC Technical Report)

Abstract Stability constants and thermodynamic functions of metal complexes of crown ethers in various solvents published between 1971 and the beginning of 2000 have been critically evaluated. The most studied crown ethers have been selected: 1,4,7,10 tetraoxacyclododecane (12C4), 1,4,7,10,13 pentaoxacyclopentadecane (15C5), and 1,4,7,10,13,16 hexaoxacyclooctadecane (18C6). The metal ions chosen are: alkali and alkaline earth metal ions, Ag+, Tl+, Cd2+, and Pb2+. The solvents considered are: water, methanol, ethanol, and their mixtures, as well as acetonitrile, N,N'-dimethylformamide, dimethylsulfoxide, and propylene carbonate. The published data have been examined and grouped into two categories, “accepted” and “rejected”. The “accepted” values were considered as: (i) recommended (R), when the standard deviations (s.d.) on the constant K or on Δr H were inferior to 0.05 lg unit or inferior to 1 kJ mol−1, respectively; (ii) provisional (P), when s.d. is superior to 0.05 and inferior to 0.2 for lg K or s.d. is superior to 1 and inferior to 2 kJ mol−1 for Δr H; (iii) recommended 1 (R1), if the values were obtained by a single research group, but were considered reliable in comparison with related systems, and considering that the research team usually presents R-level values for other similar systems.

Critical Evaluation of Stability Constants of Phosphonic Acids (IUPAC Technical Report)

Critical Evaluation of Stability Constants of Phosphonic Acids (IUPAC Technical Report)

Critical evaluation of stability constants of phosphonic acids (IUPAC Technical Report)

Abstract Available experimental data on stability constants of proton and metal complexes for 10 phosphonic acids [methylphosphonic acid, 1-hydroxyethane-1,1-diylbisphosphonic acid, dichloromethylenebisphosphonic acid, amino-methanephosphonic acid, N-(phosphonomethyl)glycine, imino-N,N-bis(methylenephosphonic acid), N-methylamino-N,N-bis(methylenephosphonic acid), nitrilotris(methylenephosphonic acid), 1,2-diaminoethane-N,N,N´,N´-tetrakis-(methylenephosphonic acid), and diethylenetriamine-N,N,N´,N´´,N´´-pentakis-(methylenephosphonic acid)], published in 1950­1997, have been critically evaluated. For the latter phosphonate, all the data are rejected, as well as protonation constants [HL]/[H][L] for three other ligands. Higher-quality data are selected and presented as "Recommended" and "Provisional".

ChemInform Abstract: Critical Evaluation of Stability Constants for Metal Complexes in Solution: Critical Evaluation of Stability Constants for α‐ Hydroxycarboxylic Acid Complexes with Protons and Metal Ions and the Accompanying Enthalpy Changes. Part 1. Aromatic ortho‐Hydroxy Carboxylic Acids

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

Critical evaluation of stability constants for alpha-hydroxycarboxylic acid complexes with protons and metal ions and the accompanying enthalpy changesPart I: Aromatic ortho-hydroxycarboxylic acids (Technical Report)

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Critical evaluation of stability constants of metal-imidazole and metal-histamine systems (Technical Report)

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Critical evaluation of stability constants for nucleotide complexes with protons and metal ions and the accompanying enthalpy changes

Critical evaluation of stability constants for nucleotide complexes with protons and metal ions and the accompanying enthalpy changes