Complex formation of palladium(II) during sorption of its chloro and sulfate complexes with fibrous sorbent based on polyacrylonitrile modified with thiosemicarbazide

Sorption properties of the fibrous sorbent based on polyacrylonitrile modif ied with thiosemicarbazide (GLIPAN-1) with respect to K-2[PdC4] and PdSO4. 2H(2)O were compared. Special attention was paid to determination of the co mposition of complexes in the phase of the fibrous sorbent depending of the composition of the initial complex and sorption conditions. Nonempirical H artree-Fock calculations of methylthiosemicarbazide with complete optimizat ion of the compound geometry were performed. This allowed estimation of the reactivity of donor atoms of the thiosemicarbazide group participating in formation of palladium(TI) complexes with the polymeric ligand.