About the authors
| First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address. | Mukhametshina Rumiya Mugallimovna candidate of chemical sciences, associate professor E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Kazan State University of Architecture and Engineering The organization address: 420043, Russia, Kazan, Zelenaya st., 1 Morozov Vladimir Ivanovich Е-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it A.E. Arbuzov Institute of Organic and Physical Chemistry, RAS The organization address: 420088, Russia, Kazan, Arbuzov st., 8 |
| Title of the article | Study of copper(II) complexes with hydroxyethylidene diphosphonic acid by electron paramagnetic resonance method |
| Abstract. | Problem statement. The purpose of the research is to study the complexation of copper(II) with hydroxyethylidene diphosphonic acid and to identify the possibility of using hydroxyethylidene diphosphonic acid as ligands of copper(II) ions to obtain stable solutions of chemical copper plating. Results. The formation of copper(II) complexes with hydroxyethylidene diphosphonic acid has been studied by the electron paramagnetic resonance (EPR) method. A method is proposed for processing EPR data – measurements for calculating the distribution of complex forms in the form of the dependence dП/dpH – f(pH), where P is the parameter of the EPR spectrum, which seems promising for describing paramagnetic systems characterized by complex equilibria with small relative magnetic line widths. The compositions were established and the stability constants of the complexes were calculated at various pH-range . Conclusions. The significance of the results obtained for the construction industry lies in the fact that new materials have been studied based on copper complexes with hydroxyethylidene diphosphonic acid. It has been established that hydroxyethylidene diphosphonic acid forms stable complex compounds with copper(II) ions and is a promising ligand for obtaining high-quality metallic coatings. |
| Keywords. | electron paramagnetic resonance, complexation, chemical copper plating, ligand, hydroxyethylidene diphosphonic acid. |
| For citations: | Mukhametshina R.M., Morozov V.I. Study of copper(II) complexes with hydroxyethylidene diphosphonic acid by electron paramagnetic resonance method // Izvestiya KGASU. 2019. №3(49) P.154-162. |
