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Zeitschrift für Naturforschung C

A Journal of Biosciences

Editor-in-Chief: Seibel, Jürgen

Editorial Board: Aigner , Achim / Boland, Wilhelm / Bornscheuer, Uwe / Hoffmann, Klaus

IMPACT FACTOR 2017: 0.882
5-year IMPACT FACTOR: 0.912

CiteScore 2017: 0.92

SCImago Journal Rank (SJR) 2017: 0.288
Source Normalized Impact per Paper (SNIP) 2017: 0.448

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Volume 29, Issue 7-8


Chelate Formation of Riboflavine with Yttrium (III), Lanthanum (III), and Cerium (III)

B.S. Sekhon / S.L Chopra
Published Online: 2014-06-02 | DOI: https://doi.org/10.1515/znc-1974-7-805


Stepwise stability constants of the interactions of 7,8-dimethyl (ribo-2,3,4,5-tetrahydroxypentyl) isoalloxazine (riboflavine) with Y (III) , La (III) and Ce (III) have been determined at 35 and 45 °C and ionic strength of 0.05 ᴍ using Bjerrum-Calvin pH titration technique. The values of free energy (⊿G), enthalpy (⊿H) and entropy changes (⊿S) have been reported.

: Riboflavine Chelates; Metal Chelates; Stability Constants

About the article

Received: 1973-11-30

Revised: 1974-04-09

Published Online: 2014-06-02

Published in Print: 1974-08-01

Citation Information: Zeitschrift für Naturforschung C, Volume 29, Issue 7-8, Pages 339–342, ISSN (Online) 1865-7125, ISSN (Print) 0939-5075, DOI: https://doi.org/10.1515/znc-1974-7-805.

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© 1946 – 2014: Verlag der Zeitschrift für Naturforschung. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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