A linear bifunctionalized organoimido derivative of hexamolybdate: Convenient synthesis and crystal structure

A new disubstituted imido derivative [Bu4N]2[Mo6O17(NAr)2] (1) (Ar = 2,4-(CH3)2C6H3), has been synthesized under a mild and convenient reflux reaction of [Bu4N]2[Mo6O19], 2,4-dimethylaniline, and DCC, and characterized by IR spectroscopy, elemental analysis, UV–vis absorption spectroscopy, and single-crystal X-ray diffraction. The most interesting characteristic of 1 is that its anion segment is linear and centrosymmetric with two imido groups occupying two terminal positions of hexamolybdate in an unusual trans fashion. This is the first trans-bis(imido)hexamolybdate prepared via a convenient synthetic route.