Browsing by Author "Parvanova V."

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    Synthesis of new complex [Bi6O6(OH)2](ClC6H4SO3)4and investigation of its thermal decomposition
    (2023-05-01) Kaloyanov N.; Zahariev A.; Parvanova V.; Avdeev G.; Girginov C.
    A new [Bi6O6(OH)2](ClC6H4SO3)4complex is synthesized through a reaction of Bi2O3 with aqueous 4-chlorobenzenesulfonic acid at elevated temperature. The product composition is elucidated by elemental analysis, ICP-OES and FTIR techniques. By means of XRD analysis, the compound s indexation, monoclinic P2(3) space group and unit cell parameters: A=31.25(3) A, b=19.78(1) A, c=8.795(8) A, γ = 94.33(4)o as well as a cell volume = 5424.21 A3 are determined. Based on DTA-TG technique, three specific temperatures aimed at studying product s thermal decomposition are determined. The compositions of solid residues after isothermal heating are proved following the XRD and FTIR data.