Linear organic–inorganic heterometallic copolymers [(Fe, Zn)(H2O)3{NH(CH2PO3H)3}]n and [(Fe, Cd)(H2O)3{NH(CH2PO3H)3}]n: The missing link in the mechanism of inhibiting local steel corrosion with phosphonates


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Abstract

Heteropolynuclear [Zn0.5Fe0.5(H2O)3{NH(CH2PO3H)3}]n and [Cd0.125Fe0.875(H2O)3{NH(CH2PO3H)3}]n complexes, which form during interaction between inhibitors of corrosion and Fe2+ ions and play an important role in inhibiting local steel corrosion by complexes of nitrilotrismethylenephosphonic acid, are isolated for the first time. Their composition, structure, and properties are studied by means of XSA, EDRS, IR and Raman spectroscopy.

About the authors

F. F. Chausov

Udmurt State University; Physicotechnical Institute, Ural Branch; Institute of Mechanics, Ural Branch

Author for correspondence.
Email: chaus@udsu.ru
Russian Federation, Izhevsk, 426034; Izhevsk, 426001; Izhevsk, 426034

N. V. Somov

Lobachevsky National Research University

Email: chaus@udsu.ru
Russian Federation, Nizhny Novgorod, 603155

R. M. Zakirova

Udmurt State University

Email: chaus@udsu.ru
Russian Federation, Izhevsk, 426034

A. A. Alalykin

Udmurt State University

Email: chaus@udsu.ru
Russian Federation, Izhevsk, 426034

S. M. Reshetnikov

Udmurt State University

Email: chaus@udsu.ru
Russian Federation, Izhevsk, 426034

V. G. Petrov

Institute of Mechanics, Ural Branch

Email: chaus@udsu.ru
Russian Federation, Izhevsk, 426034

V. A. Aleksandrov

Institute of Mechanics, Ural Branch

Email: chaus@udsu.ru
Russian Federation, Izhevsk, 426034

M. A. Shumilova

Institute of Mechanics, Ural Branch

Email: chaus@udsu.ru
Russian Federation, Izhevsk, 426034

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