catena-Polycadmium-bis­(μ-triethyl­ene­tetra­mine-κ4 NN′:N′′N′′′)-cadmium-(μ-triethyl­ene­tetra­mine-κ4 NN′:N′′N′′′) hexa­fluoridogermanate

摘要

The title fluoridogermanate, {[Cd2(C6H18N4)3][GeF6]}n, was synthesized hydro­thermally. The crystal structure comprises undulated cationic [Cd2(TETA)3]⁴⁺ chains (TETA is triethyl­ene­tetra­mine) propagating parallel to [101]. The central Cd^II atom is six-coordinated in a CdN6 set by three TETA ligands. The isolated [GeF6]²⁻ units, serving as counter-anions, occupy the inter-chain spaces and simultaneously link adjacent chains into a three-dimensional network through extensive N—H⋯F hydrogen-bonding inter­actions. One of the ethyl­ene bridges of one TETA ligand is disordered around a twofold rotation axis.