Functionalisation of [Mo6O19]2– with aromatic amines: synthesis and structure of a hexamolybdate building block with linear difunctionality

Abstract

In reactions between the hexamolybdate [Mo₆O₁₉]^2– and 1,4-diaminobenzene, terminal oxides are replaced by 4-aminophenylimido ligands and the first structurally characterised polyoxometallate to contain functionalised organoimido ligands, (Buⁿ₄)₂[Mo₆O₁₇(NC₆H₄NH₂)₂]5, is also the first example of a trans-bis(imido) derivative; further condensation also occurs to yield species in which hexamolybdate units are linked by 1,4-phenylenediimido bridges.