HOMOLOGOUS SERIES of CHEMICAL COMPOUNDS: THRЕЕ–COMPONENT SYSTEMS (Li+ – Ti4+ – O2–), (Na+ – Ti4+ – O2–), (K+ – V5+ – O2–), (Ba2+ – Cu2+ – O2–) and FOUR–COMPONENT SYSTEM {Li+ – Fe2+ – (PO4)3–}
Yurii K. Undalov, E. I. Terukov, Dmitrii V. Agafonov, A. V. Bobyl
Abstract
The paper presents for the first time a method for calculating the formulas of homological series of chemical compounds of systems (Li+ – Ti4+ – O2–), (Na+ – Ti4+ – O2–), (K+ – V5+ – O2–), {Li+ – Fe2+ – (PO4)3–}, (Ba2+ – Cu2+ – O2). The calculation method is confirmed by a sufficiently large number of experimentally obtained (taken from literature) formulas of chemical compounds: 7 compounds – in the system (Li+ – Ti4+ – O2–), 11 compounds – in the system (Na+ – Ti4+ – O2–), 5 compounds – in the system (K+ – V5+ – O2–), 8 compounds – in the system (Ba2+ – Cu2+ – O2). The formulas of the branches of chemical compounds of the homological series of the corresponding systems have the form: Li4Ti4+nO2(n + 1) (homologues are enriched with TiO2), Na4Ti4+nO2(n + 1) (homologues are enriched with TiO2), K10V5+2nO5(n + 1) (homologues are enriched with V2O5), Li6Fe3n(PO4)2(n + 1) { homologues are enriched with Fe3(PO4)2}, BaCunOn + 1 (homologues are enriched with CuO) и BanCuOn + 1 (homologues are enriched with BaO).