The influence of Na+ on neighbouring hydrogen bonds of aliphatic amino acid

Kokpol, Sirirat; Hannongbua, Supot; Limtrakul, Jamras P.

doi:10.1007/bf00810835

Cited by 3 publications

(1 citation statement)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Many ab initio calculations have been reported as to the stability, structure, and solvent effect on the glycine zwitterion. − Thirteen conformers of gaseous neutral glycine were precisely examined, and the lowest-energy form has a planar heavy-atom structure and two equal N−H···O hydrogen bonds . By inclusion of a solvent continuum model, a geometry of the in-plane N···H−O hydrogen bond becomes the best one .…”

Section: Introductionmentioning

confidence: 99%

Molecular Interactions between Glycine and H₂O Affording the Zwitterion

2003

View full text Add to dashboard Cite

Isomerization reactions of glycine were studied computationally. Three water molecules were found to cause the reaction of glycine with the anti carboxyl group. For the glycine with the syn carboxyl group, three and one molecules are concerned with the reaction; one acts as a catalyst to prevent the local proton transfer. A reaction model composed of glycine and eleven water molecules was examined. An "out-of-plane" path was found to be a favorable stepwise channel with two small activation energies. In the path, an ion-pair intermediate was obtained. From the intermediate, a proton may be relayed outward from the hydrogen-bond network. The possibility of this proton dispersal was discussed in relation to experimental evidence of isoelectric points of zwitterions.

show abstract

Section: Introductionmentioning

confidence: 99%

Molecular Interactions between Glycine and H₂O Affording the Zwitterion

2003

View full text Add to dashboard Cite

show abstract

Optical activity, solvation state, and conformations ofL-?-alanine in water-organic solvents

et al. 1993

View full text Add to dashboard Cite

Co-ordination of amines to [Fe(CN)5(OH2)]3?

Norris¹,

Pratt²

1995

J. Chem. Soc., Dalton Trans.

View full text Add to dashboard Cite

Equilibrium constants K for the substitution of co-ordinated H,O in the complex [Fe(CN),(OH,)]'-by amines have been determined in 0.1 rnol dm-' aqueous acetonitrile solution with / = 0.1 rnol dm ' (NaCIO,) at 25 "C by UV/VlS spectrophotometry. The species previously assigned to the NH,OH complex is shown to be the product of some oxidative side-reaction. In the absence of complicating factors, values of log K obey the linear free-energy relation log K = a-pK + b with a = 0.05 and b =

show abstract

The influence of Na+ on neighbouring hydrogen bonds of aliphatic amino acid

Cited by 3 publications

References 22 publications

Molecular Interactions between Glycine and H₂O Affording the Zwitterion

Molecular Interactions between Glycine and H₂O Affording the Zwitterion

Optical activity, solvation state, and conformations ofL-?-alanine in water-organic solvents

Co-ordination of amines to [Fe(CN)5(OH2)]3?

Contact Info

Product

Resources

About

The influence of Na+ on neighbouring hydrogen bonds of aliphatic amino acid

Cited by 3 publications

References 22 publications

Molecular Interactions between Glycine and H2O Affording the Zwitterion

Molecular Interactions between Glycine and H2O Affording the Zwitterion

Optical activity, solvation state, and conformations ofL-?-alanine in water-organic solvents

Co-ordination of amines to [Fe(CN)5(OH2)]3?

Contact Info

Product

Resources

About

Molecular Interactions between Glycine and H₂O Affording the Zwitterion

Molecular Interactions between Glycine and H₂O Affording the Zwitterion