名称:
[ReO2(dppp)2]Ix[ReO4]1-x.xH2O.CH3OH forx= 0.17 (1), 0.36 (1) and 1 [dppp is 1,3-bis(diphenylphosphino)propane]
摘要:
The crystal structures of [ReO2 (dppp)(2)]I-x[ReO4](1-x).- xH(2)O . CH3OH, where x = 0.17 (1), 0.36 (1) and 1, i.e, dioxo[propane-1,2-diylbis(diphenylphosphine)-P,P']-rhenium iodide perrhenate hydrate methanol solvate, with iodide partially substituted by the perrhenate ion, are described. The compositions studied correspond to x = 0.17(1), 0.36(1) and 1. A solvent water molecule participates in the crystallization in a 1:1 stoichiometric ratio with the iodide ion. The iodide ion and the water molecule together occupy nearly the same space and volume as the perrhenate ion and this facilitates their substitution. The three compositions studied are isostructural and crystallize in space group P2(1)/n. A contraction of the unit cell is detected as the iodide-ion concentration increases.