Ternary Coordination Complexes Formed by Copper(II) with Thio-or Dithiodialkanoic Acids and Some Selected Ethyl-substituted Malonic Acids

Action of some substituted anthranilic acids on Escherichia coli.

Rydon (1) has found that 4and 5-methylanthranilic acids inhibit the growth of Eberthella typhi and that this inhibition is reversed by anthranilic acid, indole, and tryptophan. He concluded that the two methyl compounds interfere with the synthesis of tryptophan at the stage of anthranilic acid. Interruption in the conversion of anthranilic acid to indole in Escherichia coli, caused by chloromy...

The glycogenolytic activity of some substituted salicylic acids.

Microbial desulfonation of substituted naphthalenesulfonic acids and benzenesulfonic acids.

Sulfur-limited batch enrichment cultures containing one of nine multisubstituted naphthalenesulfonates and an inoculum from sewage yielded several taxa of bacteria which could quantitatively utilize 19 sulfonated aromatic compounds as the sole sulfur source for growth. Growth yields were about 4 kg of protein per mol of sulfur. Specific degradation rates were about 4 to 14 mu kat/kg of protein....

GAS-PHASE ACIDITY OF SOME CARBOXYLIC ACIDS CALCULATED BY MNDO

Gas-phase acidities of 15 aliphatic carboxylic acids, X CH -,COOH, have been calculated using the MNDO method. Among the substituted groups exist the electron donor alkyl groups and electron acceptor halogens. The average error in acidity is within the experimental uncertainty of the data. Systematic errors have been found for the substituents which form internal hydrogen bondings. A reaso...

Thermodynamic-Biochemical Study of Complexes of Intermediate Elements with α-Amino Acids in Some Proteins with Active Site

In this paper, the quantum chemistry calculations related to the structural parameter of the chromite and molybdate anions and the complexes obtained from them with the glycine and alanine amino acids were performed. The calculations were carried out using HF and DFT methods and in the base series 6-31G *. Thermodynamic studies related to the formation of complexes have been considered and thei...