Synthesis, characterization and crystal structures of three new inorganic dinuclear diperoxo complexes of W(VI) and Mo(VI); Rb-2{O[WO(O-2)(2)H2O](2)}center dot H2O, Rb-2{[MoO(O-2)(2)H2O](2)}center dot H2O and Cs-2{O[MoO(O-2)(2)](2)}

摘要

The crystal structures of three dinuclear diperoxo compounds have been determined from single-crystal X-ray (two compounds) and powder diffraction data (one compound). All the compounds crystallize in the triclinic space group P-1(2). (1) Rb-2{O[WO(O-2)(2)H2O](2)}center dot H2O crystallizes with a=6.329(5). b=8.107(5), c=12.405(5)angstrom, alpha=105.526(5), beta=92.389(5), gamma =104.923(5)degrees, Z=2.(2) Rb-2{O[MoO(O-2)(2)H2O](2)}center dot H2O crystallizes with a=6.275(5), b=8.120(5), c=12.472(5)A, alpha=105.416(5), beta=92.038(5), gamma=105.289(5)degrees, Z=2.(3) Cs-2{O[MoO(O-2)(2)](2)}center dot H2O crystallizes with a=7.767(5), b=8.738(5), c=8.884(5) angstrom, alpha = 64.847(5), beta = 68.212(5), gamma = 81.475(5)degrees, Z = 2. The results of crystal structure determination and of IR, TG/DSC and analytical studies are presented in this paper.