Glycolic alcoholates formation in MmCuOn-ethylene glycol systems

X-ray, microscopic, and thermogravimetric analyses were used to study the interaction of Bi2−xSr2Ca2Cu3O10+y, Ca2CuO3, Sr2CuO3, CaSrCuO3, SrCuO2, BaCuO2, and Li2CuO2 powders with ethylene glycol at room temperature. It was determined that glycolic alcoholates are obtained as a result of interaction of simple cuprates and ethylene glycol. The compounds M2[Cu(CH2OCH2OH)6] (M = Ca, Sr), M[Cu(CH2OCH2O)2] (M = Sr, Ba), Li2[Cu(CH2OCH2OH)4], and Li2[Cu(CH2OCH2O)2(H2O)2] have been isolated and identified. Chemical transformation of Bi2−xSr2Ca2Cu3O10+y leads to the formation of glycolic alcoholates mixture with the compositions Sr[Cu(CH2OCH2O)2], Ca2[Cu(CH2OCH2OH)6], CaSr[Cu(CH2OCH2OH)6], and the unidentified amorphous phases containing bismuth and lead.