Spontaneous enanti-omorphism in poly-phased alkaline salts of tris-(oxalato)ferrate(III): crystal structure of cubic NaRb₅[Fe(C₂O₄)₃]₂.

ABSTRACT: We show here that the phenomenon of spontaneous resolution of enanti-omers occurs during the crystallization of the sodium and rubidium double salts of the transition metal complex tris-(oxalato)ferrate(III), namely sodium penta-rubidium bis-[tris-(oxalato)ferrate(III)], NaRb₅[Fe(C₂O₄)₃]₂. One enanti-omer of the salt crystallizes in the cubic space group P4₃32 with Z = 4 and a Flack absolute structure parameter x = -0.01 (1) and its chiral counterpart in the space group P4₁32 with x = -0.00 (1). All metal ions are at crystallographic special positions: the iron(III) ion is on a threefold axis, coordinated by three oxalate dianions in a propeller-like conformation. One of the two

SUBMITTER: Piro OE 

PROVIDER: S-EPMC6038628 | biostudies-literature | 2018 Jul

REPOSITORIES: biostudies-literature