AbstractThe ability of hesperidin (HP) to form complexes with five metals; cobalt, nickel, zinc, calcium and magnesium was investigated. The complexation was studied using U.V spectroscopic titration, in methanol as well as aqueous buffer solutions (physiological conditions). Potential complexes were studied by IR and NMR spectroscopy, melting point and their solubility were also evaluated. The...

A series indole-based ligand precursors, PzRIndH (R = H, PzHIndH; R = Me, PzMeIndH; R = t-Bu, PztBuIndH; and R = Ph, PzPhIndH), have been synthesized via copper-catalyzed N-arylation (for PzHIndH) or the Bartoli indole synthesis (for PzMeIndH, PztBuIndH and PzPhIndH) reactions with moderate to high yield. Reactions of these ligand precursors with 0.7 equivalent of MgBu2 in THF (for 1) or hexane...

abstractthe ability of hesperidin (hp) to form complexes with five metals; cobalt, nickel, zinc, calcium and magnesium was investigated. the complexation was studied using u.v spectroscopic titration, in methanol as well as aqueous buffer solutions (physiological conditions). potential complexes were studied by ir and nmr spectroscopy, melting point and their solubility were also evaluated. the...

the interaction of magnesium hydrate at the phosphate oxygen atom of the pyrimidine nucleotides (cmp,ump,dtmp) were studied at the hartree-fock level theory. we used lanl2dz basis set for mg and 6-31g* basis set for atoms.the basis set superposition error (bsse) begins to converge for used method/basis set. the gauge-invariant atomic orbital (giao) method and the continuous-set-of-gauge-transfo...

The following report is concerned with the study of magnesium metabolism in clinical and experimental hyperthyroidism. This first communication deals primarily with the ratio of diffusible magnesium to total serum magnesium in the hyperthyroid state. The general question of relationship of total serum magnesium to its ultrafiltrable fraction in 8 normal individuals has been discussed by Watchor...

The effect of oral laxatives on the organisation of colonic motor complexes was investigated in four conscious dogs. Six strain gauge transducers were implanted on the colon of each dog. After a control period of two to three hours, dogs were orally dosed with 1, 2, or 4 ml/kg of castor oil, or 0.5 g/kg magnesium citrate. Oral olive oil, 4 ml/kg, was used as control. The recording was continued...

HE BIOLOGICAL n#{248}ui of magnesium is of considerable importance in the processes of synthesis in the organic world. According to the work of Academician V. I. Vernadskii, chlorophyll contains up to 0.2 per cent magnesium. Magnesium enters into the composition of proteins, of plasma, and of the basic colloids of the living body. The magnesium in living matter constitutes n.10_2 of its weight....

A toroid multisubunit complex of 800-900 kDa has been implicated in assisting protein folding of at least two cytoplasmic proteins, actin and tubulin. This process is dependent on the presence of magnesium ions and ATP hydrolysis. In vitro translation of cDNAs encoding different alpha- and beta-tubulin isotypes also gives rise to the formation of complexes of about 300 kDa. These complexes have...

Crystallographic and NMR spectroscopic studies on allyl complexes of lithium, potassium and magnesium containing an O-donor functionality are described.