Various pathways for the synthesis of beryllium triflate were investigated. The reaction of triflic acid or trimethylsilyl triflate with beryllium metal in liquid ammonia led to the formation of mono-, di-, and tetra-nuclear beryllium ammine complexes. Utilization of SMe2 as a solvent gave homoleptic Be(OTf)2. Various beryllium triflate complexes with N- and O-donor ligands as well as the complex anions [Be(OTf)4]2– and [Be2(OTf)6]2– were synthesized to evaluate the reactivity and solution properties of beryllium triflate. This showed that OTf– is not a weakly coordinating anion for Be2+ cations and that it exhibits good bridging properties.
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Augustinov et al. (2024) studied this question.
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