Anion–π interaction inside the polyanionic Mo132O372 cage with hydrophobic inner space

Abstract

In this paper, we provide experimental evidence to indicate that the polyanionic Mo₁₃₂O₃₇₂ cage with a hydrophobic inner nanospace has a unique capability to participate in anion–π interactions by showing a preference for electron-deficient mono-substituted benzenes over non-electron-deficient guests in inclusion.