Synthesis and investigation of new heteronuclear [Zn-La] coordination compounds based on unsaturated lanthanum complex with N,N'-tetraethyl-N''-trichloacetylphosphortriamide

New heteronuclear [Zn-La] coordination compounds, perspective luminescent materials, with general formulas [Zn(Ve)La(X)2(Ac)] ({Zn-La;Ve;X}) and [Zn(Vp)La(X)2(Ac)] ({Zn-La;Vp;X}) have been synthesized HX=CCl3C(O)NHP(O)[N(C2H5)2]2 - N,N'-tetraethyl-N''-trichloracetylphosphortriamide, H2Ve and H2Vp are products of the condensation of 1,2-diaminoethane and 1,3-diaminopropane with o-vanillin, respectively). The composition of [Zn-La] complexes has been determined, and the coordination mode of a phosphorylated ligand has been suggested by element analysis, IR- and 1H, 31P NMR-spectroscopy.