Aqueous reactions of U(VI) at high chloride concentrations: syntheses and structures of new uranyl chloride polymers.

The reactions of UO(3) with acidic aqueous chloride solutions resulted in the formation of two new polymeric U(VI) compounds. Single crystals of Cs(2)[(UO(2))(3)Cl(2)(IO(3))(OH)O(2)].2H(2)O (1) were formed under hydrothermal conditions with HIO(3) and CsCl, and Li(H(2)O)(2)[(UO(2))(2)Cl(3)(O)(H(2)O)] (2) was obtained from acidic LiCl solutions under ambient temperature and pressure.

Rapid Inversion at Phosphorus in the [eta(4)-(C(6)H(11))(3)SnP(7)W(CO)(3)](2)(-) and [(en)(CO)(3)W(eta(1),eta(4)-P(7))M(CO)(3)](3)(-) Ions Where M = Cr, W.

Ethylenediamine (en) solutions of [eta(4)-P(7)M(CO)(3)](3)(-) ions [M = Cr (1a), W (1b)] react with (mesitylene)W(CO)(3) to form the bimetallic complexes [(en)(CO)(3)W(eta(1),eta(4)-P(7))M(CO)(3)](3)(-) where M = Cr (3a), W (3b) in good yield. Compound 3b can be prepared directly from P(7)(3)(-) and 2 equiv of (mesitylene)W(CO)(3). Compound 3a reacts with 1 equiv of P(7)(3)(-) to form 1a and 1b.