Chiral open-framework uranyl molybdates. 2. Flexibility of the U:Mo = 6:7 frameworks: syntheses and crystal structures of (UO 2 ) 0.82 [C 8 H 20 N] 0.36 [(UO 2 ) 6 (MoO 4 ) 7 (H 2 O) 2 ](H 2 O) n and [C 6 H 14 N 2 ][(UO 2 ) 6 (MoO 4 ) 7 (H 2 O) 2 ](H 2 O)

Abstract Two new chiral open-framework uranyl molybdates, (UO 2 ) 0.82 [C 8 H 2

Palladium metaborate

PdB2O4 is tetragonal, space group I42d, with a 11.672(2) and c 5.698(1) .ANG.; Z = 12 for dc = 4.92. The structure was refined to a final R = 0.020. It is isotypical with its Cu analog. The av. Pd-O bond distance is 2.033(5) .ANG.. At. coordinates are given

PdB₂O₄, the first palladium borate

PdB2O4 were prepd. from a 1:1 mixt. of Pd(NO3)2.2H2O and B2O3 at 40 kbar and 800 Deg. PdB2O4 belongs to space group I.hivin.42 d with a 11.675(5) and c 5.703(5) .ANG., Z = 12, and d. (calcd.) = 4.92 Mg/m3

Structure of cubic aluminate sodalite, Sr₈[Al₁₂O₂₄](CrO₄)₂

The title compd. is cubic, space group I.hivin.43m, with a 9.427(2) .ANG.; dc = 3.25 for Z = 1. The final R = 0.045 for 256 reflections. The at. coordinates are given. The sodalite framework is (almost) fully expanded, therefore space group Im.hivin.3m is also possible. The corresponding refinement gave results almost identical with that in I.hivin.43m (R = 0.048 for 149 reflections). The tetrahedral CrO4 cage anion is 6-fold disordered; only the superposition corresponds to cubic symmetry