Synthesis and Structure of [K+-(2,2)diaza-[18]-crown-6][K3Ge9]·2Ethylenediamine: Stabilization of the Two-Dimensional Layer 2∞[K3Ge91-]
Citations Over Time
Abstract
Large bright-red, transparent crystalline plates of [K-(2,2)diaza-[18]-crown-6]K3Ge9-2en are obtained, in high-yield, from a reaction of (2,2)diaza-[18]-crown-6 in toluene with a solution of K4Ge9/potassium metal (K) in ethylenediamine (en). The compound crystallizes in the monoclinic space group P2(1)/m (a = 10.740(1) A, b = 15.812(1) A, c = 12.326(1) A, beta = 114.74 degrees; Z = 2). The crystal structure of [K-(2,2)diaza-[18]-crown-6]K3Ge9-2en features two-dimensional [K3Ge9] layers formed by uncomplexed K(+) cations and Ge94(-) anions. The "not-so-bare" cluster compound features a unique Ge94(-) cluster that exhibits a slightly distorted C(2v) geometry that is closer to D(3h) than the expected C(4v). Use of noncryptand sequestering agents in the isolation of Ge cluster anions from en solutions opens new avenues in understanding important cation-anion interactions in the stability and reactivity of Zintl ions, as well as a viable route to isolating Zintl anions with higher charges per atom.
Related Papers
- → Shape Control of Fullerene Microparticles by Using Ethylenediamine(2008)20 cited
- → Structural and vibrational properties of phase-pure monoclinic NdLuO3 interlanthanides synthesized from nanostructured precursors(2016)5 cited
- → On the polymorphism of orthotelluric acid, H6TeO6(1968)10 cited
- → THE ISOLATION AND CHARACTERIZATION OF COBALT(III) COMPLEXES OBTAINED FROM THE REACTIONS OF ETHYLENEDIAMINETETRAACETATO-AND R-PROPYLENEDIAMINETETRAACETATO-COBALTATE(III) WITH ETHYLENEDIAMINE(1974)7 cited
- → Ethylenediamine‐N,N′‐Diacetic Acid Complexes of Cobalt(III)(1978)3 cited