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 |
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| Authors: | K. Burger,N. Buzá s,K. Gajda-Schrantz,T. Gajda,Zs. Nemes-Veté ssy,A. Vé rtes,E. Kuzmann,I. Dé ká ny,M. Szekeres |
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| Affiliation: | aResearch Group for Biocoordination Chemistry of the Hungarian Academy of Sciences, P.O Box 440, H-6701 Szeged, Hungary;bDepartment of Inorganic and Analytical Chemistry, A. József University, Szeged, Hungary;cDepartment of Nuclear Chemistry, L. Eötvös University, Budapest, Hungary;dDepartment of Colloid Chemistry, A. József University, Szeged, Hungary |
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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. |
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| Keywords: | Metal complexes in nanosize droplets Matrix effects Mimic of solutions in cells |
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