Mössbauer and NMR study of the N-D-gluconylglycine complex of dimethyltin(IV) and the ascorbic acid-chloride mixed complex of iron(II) in solutions fixed as nanosize droplets in solid matrixes

K. Burger, N. Buzás, K. Gajda-Schrantz, T. Gajda, Zs Nemes-Vetéssy, A. Vértes, E. Kuzmann, I. Dékány, M. Szekeres

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Abstract

Combined NMR and Mössbauer investigations were performed on two coordination chemical models of biological interest: an aqueous solution of the N-D-gluconylglycine complex of dimethyltin(IV), and methanolic and aqueous solutions of the ascorbic acid-chloride mixed complex of iron(II). When these solutions were fixed as nanosize droplets in solid matrixes, significant changes occurred in both the structure and the composition of the coordination spheres of the central atoms in the complexes situated in the bulk positions with no direct connection to the surfaces of the holes in the matrix. The phenomenon was attributed to the significant decrease in solvent activity in the pores of the matrix due to the appreciable amount of surface-bound solvent in the system. The model mimics coordination chemical systems in cell tissues.

Original languageEnglish
Pages (from-to)2525-2536
Number of pages12
JournalSpectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
Volume53
Issue number14
Publication statusPublished - Dec 1997

Fingerprint

ascorbic acid
Ascorbic acid
Ascorbic Acid
Chlorides
Iron
chlorides
Nuclear magnetic resonance
iron
nuclear magnetic resonance
matrices
aqueous solutions
Tissue
porosity
Atoms
cells
Chemical analysis
atoms
dimethyltin
N-gluconylglycine

Keywords

  • Matrix effects
  • Metal complexes in nanosize droplets
  • Mimic of solutions in cells

ASJC Scopus subject areas

  • Spectroscopy

Cite this

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title = "M{\"o}ssbauer and NMR study of the N-D-gluconylglycine complex of dimethyltin(IV) and the ascorbic acid-chloride mixed complex of iron(II) in solutions fixed as nanosize droplets in solid matrixes",
abstract = "Combined NMR and M{\"o}ssbauer investigations were performed on two coordination chemical models of biological interest: an aqueous solution of the N-D-gluconylglycine complex of dimethyltin(IV), and methanolic and aqueous solutions of the ascorbic acid-chloride mixed complex of iron(II). When these solutions were fixed as nanosize droplets in solid matrixes, significant changes occurred in both the structure and the composition of the coordination spheres of the central atoms in the complexes situated in the bulk positions with no direct connection to the surfaces of the holes in the matrix. The phenomenon was attributed to the significant decrease in solvent activity in the pores of the matrix due to the appreciable amount of surface-bound solvent in the system. The model mimics coordination chemical systems in cell tissues.",
keywords = "Matrix effects, Metal complexes in nanosize droplets, Mimic of solutions in cells",
author = "K. Burger and N. Buz{\'a}s and K. Gajda-Schrantz and T. Gajda and Zs Nemes-Vet{\'e}ssy and A. V{\'e}rtes and E. Kuzmann and I. D{\'e}k{\'a}ny and M. Szekeres",
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TY - JOUR

T1 - Mössbauer and NMR study of the N-D-gluconylglycine complex of dimethyltin(IV) and the ascorbic acid-chloride mixed complex of iron(II) in solutions fixed as nanosize droplets in solid matrixes

AU - Burger, K.

AU - Buzás, N.

AU - Gajda-Schrantz, K.

AU - Gajda, T.

AU - Nemes-Vetéssy, Zs

AU - Vértes, A.

AU - Kuzmann, E.

AU - Dékány, I.

AU - Szekeres, M.

PY - 1997/12

Y1 - 1997/12

N2 - Combined NMR and Mössbauer investigations were performed on two coordination chemical models of biological interest: an aqueous solution of the N-D-gluconylglycine complex of dimethyltin(IV), and methanolic and aqueous solutions of the ascorbic acid-chloride mixed complex of iron(II). When these solutions were fixed as nanosize droplets in solid matrixes, significant changes occurred in both the structure and the composition of the coordination spheres of the central atoms in the complexes situated in the bulk positions with no direct connection to the surfaces of the holes in the matrix. The phenomenon was attributed to the significant decrease in solvent activity in the pores of the matrix due to the appreciable amount of surface-bound solvent in the system. The model mimics coordination chemical systems in cell tissues.

AB - Combined NMR and Mössbauer investigations were performed on two coordination chemical models of biological interest: an aqueous solution of the N-D-gluconylglycine complex of dimethyltin(IV), and methanolic and aqueous solutions of the ascorbic acid-chloride mixed complex of iron(II). When these solutions were fixed as nanosize droplets in solid matrixes, significant changes occurred in both the structure and the composition of the coordination spheres of the central atoms in the complexes situated in the bulk positions with no direct connection to the surfaces of the holes in the matrix. The phenomenon was attributed to the significant decrease in solvent activity in the pores of the matrix due to the appreciable amount of surface-bound solvent in the system. The model mimics coordination chemical systems in cell tissues.

KW - Matrix effects

KW - Metal complexes in nanosize droplets

KW - Mimic of solutions in cells

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VL - 53

SP - 2525

EP - 2536

JO - Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy

JF - Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy

SN - 1386-1425

IS - 14

ER -