Abstract
Direct reaction of metallic magnesium with 2-tetrahydrofurfuryl alcohol (THFFOH) produces the alkoxo magnesium compound of composition Mg(THFFO)2, 1. Compound 1 reacts with FeCl2 and NiCl2 to create two different species: the ionic [Mg7(µ3,η2-THFFO)6(µ,η2-THFFO)6][FeCl4]·3CH2Cl2, 2, and the mixed [(MgII/NiII)4(µ3,η2-THFFO)4Cl4(C2H5OH)4]·0.5C2H5OH molecular complex 3, respectively. Complexes 2 and 3 have been structurally characterized. The cation of compound 2 consists of a Mg7 unit comprising a central Mg atom held within a Mg6 puckered hexagon by six µ3-O(alkoxo) groups from the THFFO ligands. Complex 3 consists of four crystallographically independent distorted octahedral metal sites, distributed unequally (Mg0.7 and Ni0.3), which together with alkoxo oxygen atoms form a cubane-like framework.
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