Erbium and ytterbium polychelates based on tetraacetylethane

Synthesis and some characteristics of polymeric chelates containing erbium and ytterbium are discussed. As initial compounds erbium and ytterbium acetates and tetraacetyl ethane (3, 4-diacetylhexane dione-2, 5) having two pairs of donor groups being necessary for coordination with metal were used. The functional composition and structure of polychelates of erbium and ytterbium on the basis of tetraacetyl ethane were found from the data of elemental analysis, absorption IR-spectra, reflection spectra in visible region (400-800 nm) and TGA curves