Results 221 to 230 of about 15,313,595 (281)

On the solvation of L-aspartic acid

open access: yesMolecular Physics, 2004
We use molecular statics and dynamics to study the stability of L-aspartic acid both in vacuo and solvated by polar and non-polar molecules using density functional theory in the generalized gradient approximation. We find that structures stable in vacuo are unstable in aqueous solution and vice versa.
Paxton, Anthony, Harper, J.B.
openaire   +3 more sources
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Speciation of biochemically important iron complexes with amino acids: L-aspartic acid and L-aspartic acid - glycine mixture

Electrochimica Acta, 2014
Speciation of iron(III) (cFe = (0.5 - 40)x10^-5 mol dm-3) and indirectly of iron(II), in aqueous solution of L-aspartic acid and aspartic acid - glycine mixture was investigated by square-wave voltammetry on a static mercury drop electrode. A reversible, one-electron reduction process of iron(III)- aspartate complexes with peak potential between +0.04 ...
Mlakar Marina
exaly   +3 more sources

L-aspartic acid bis(trimethylsilyl) ester: a convenient starting material for the acylation of L-aspartic acid.

Tetrahedron, 1992
Abstract Reaction of L-aspartic acid with excess of bis(trimethylsilyl)amine under reflux provides optically pure L-aspartic acid bis(trimethylsilyl) ester in quantitative yield. This silyl ester reacts with a variety of acylating reagens in tetrahydrofuran to give N-protected aspartic acids and dipeptides in good yields without racemization.
Antonio M Echavarren, Ana M Castaño
exaly   +2 more sources

Antinociceptive effect of d-Aspartic acid in mice [PDF]

open access: yesPharmacology Biochemistry and Behavior, 1995
The effects of D- and L-aspartic acids on the nociceptive tail flick reflex in mice were investigated. D-Aspartic acid (115-230 mg/kg, IF) was found to increase tail flick latency significantly.
Filiz Onat, S Oktay, K Berkman
exaly   +3 more sources

Oxovanadium(iv) complexes of salicyl-l-aspartic acid and salicylglycyl-l-aspartic acid

Dalton Transactions, 2005
The dipeptide and tripeptide analogues salicyl-L-aspartic acid (Sal-L-Asp) and salicylglycyl-L-aspartic acid (SalGly-L-Asp) were synthesized and their protonation and complex formation with V(IV)O2+ were studied in aqueous solution through the use of pH-potentiometry and spectroscopic (UV-Vis, CD and EPR) techniques. The phenolate terminus proved to be
Tamás, Jakusch   +5 more
openaire   +2 more sources

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