Tosylate cluster complexes (Bu4N)2[М6I8(O3SC6H4CH3)6] (M = Mo, W)

Abstract

The reaction of (Bu₄N)₂[М₆I₁₄] with silver p-toluenesulfonate (tosylate) AgO₃SC₆H₄CH₃ affords iodide cluster complexes (Bu₄N)₂[М₆I₈(Рts)₆] (М = Mo (I), W (II); Рts is tosylate anion CH₃C₆H₄SO₃). According to the X-ray diffraction data (СIF file CCDC no. 1027969), the molybdenum atoms in (Bu₄N)₂[Мo₆I₈(Рts)₆] · 2Et₂O · 2MeCN (I′) are coordinated via the monodentate mode by the tosylate ligands. The ¹H NMR and mass spectrometry data show that in donor solvents the complexes undergo solvolysis followed by the substitution of the tosylate ligands by the solvent molecules, which is accompanied by changes in the electrochemical properties, as shown by the cyclic voltammetry data.