The novel chain-like anion∞1[NaMo8O26(mim)2]3−in (Hmim)3[NaMo8O26(mim)2] (mim is 1-methylimidazole)

Abstract

Tris(1-methylimidazolium) bis(1-methylimidazole)hexacosaoxidooctamolybdatesodium, (C(4)H(7)N(2))(3)[NaMo(8)O(26)(C(4)H(6)N(2))(2)], prepared from an aqueous solution containing Na(2)MoO(4) and 1-methylimidazole, contains the novel chain-like anion (infinity)(1)[NaMo(8)O(26)(mim)(2)](3-) (mim is 1-methylimidazole). The [Mo(8)O(26)(mim)(2)](4-) building unit, which lies across a center of inversion, is comprised of eight edge-sharing MoO(6) and MoO(5)(N(mim)) octahedra. These molybdate units are interlinked by sodium, itself exhibiting a sixfold coordination with O atoms.