Discrete Magnesium Hydride Aggregates: A Cationic Mg 13 H 18 Cluster Stabilized by NNNN-Type Macrocycles - INSA Toulouse - Institut National des Sciences Appliquées de Toulouse Access content directly
Journal Articles Angewandte Chemie International Edition Year : 2015

Discrete Magnesium Hydride Aggregates: A Cationic Mg 13 H 18 Cluster Stabilized by NNNN-Type Macrocycles

Abstract

Large magnesium hydride aggregates [Mg13(Me3TACD)6(μ2‐H12)(μ3‐H6)][A]2 ((Me3TACD)H=1,4,7‐trimethyl‐1,4,7,10‐tetraazacyclododecane; A=AlEt4, AlnBu4, B{3,5‐(CF3)2C6H3}4) were synthesized stepwise from alkyl complexes [Mg2(Me3TACD)R3] (R=Et, nBu) and phenylsilane in the presence of additional MgII ions. The central magnesium atom is octahedrally coordinated by six hydrides as in solid α‐MgH2 of the rutile type. Further coordination to six magnesium atoms leads to a substructure of seven edge‐sharing octahedra as found in the hexagonal layer of brucite (Mg(OH)2). Upon protonolysis in the presence of 1,2‐dimethoxyethane (DME), this cluster was degraded into a tetranuclear dication [Mg2(Me3TACD)(μ‐H)2(DME)]2[A]2.
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Dates and versions

hal-01968889 , version 1 (03-01-2019)

Identifiers

  • HAL Id : hal-01968889 , version 1

Cite

Daniel Martin, Klaus Beckerle, Silvia Schnitzler, Thomas Spaniol, Laurent Maron, et al.. Discrete Magnesium Hydride Aggregates: A Cationic Mg 13 H 18 Cluster Stabilized by NNNN-Type Macrocycles. Angewandte Chemie International Edition, 2015, 54 (13), pp.4115-4118. ⟨hal-01968889⟩
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