Neptunium (5) complex molybdates

Complexes of MNpO2MoO4·nH2O type, where M=Li, Na, NH4, were prepared. Conditions of their isolation, chemical properties were described. Data of X-ray phase analysis of the identified compounds, IR spectra and electron absorption spectra are given. The character and peculiarities of the spectra indicate participation of cation-cation interaction in costraction of the complexes crystal lattice. Complex dimolybdates of Am5+:M3AmO2·(Mo2O7)2, where M=K, NH4 were prepared and proved to be isostructural to the corresponding neptunium analogues