Structure and Luminescent Properties of Cluster Complexes with the {Mo<inf>6</inf>(μ<inf>3</inf>-SeCl<inf>7</inf>)}³⁺ Core

Abstract

© 2018, Pleiades Publishing, Ltd. The selenium atom substitution for one of the capping chloride ligands in [Mo6(μ3-Cl8)Cl6]2– under the action of H2Se in situ results in a [Mo6(μ3-SeCl7)Cl6]3– cluster which is isolated and structurally characterized in the form of (Bu4N)3[Mo6(μ3-SeCl7)Cl6] (I). In the acetonitrile solution the complex exhibits luminescence (λmax = 775 nm, τem = 1.8 μs, Φem = 0.004). When the solution of I in acetonitrile is heated, a partial solvolysis product of the composition (Bu4N)2[Mo6(μ3-SeCl7)Cl5(CH3CN)] (II) is isolated and structurally characterized.