New lithium borates with bistetrazolato2− and pyrazinediolato2− ligands - potentially interesting lithium electrolyte additivesElectronic supplementary information (ESI) available. CCDC 1484823-1484827 and 1527276-1527279. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c7dt00308k

We present a convenient synthesis of the first silylated bistetrazole via a catalyzed twin [2 + 3] cycloaddition of TMS-azide at cyanogen and its application to access bistetrazolatoborates, structurally characterized by a unique unsaturated ten-membered B 2 N 4 C 4 heterocyclic system. Furthermore,...

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Main Authors: Finger, Lars H, Venker, Alexander, Schröder, Fabian G, Sundermeyer, Jörg
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description We present a convenient synthesis of the first silylated bistetrazole via a catalyzed twin [2 + 3] cycloaddition of TMS-azide at cyanogen and its application to access bistetrazolatoborates, structurally characterized by a unique unsaturated ten-membered B 2 N 4 C 4 heterocyclic system. Furthermore, new borate anions with two pyrazine-2,3-diolato ligands were synthesized from tetrafluoroborate salts and structurally characterized. Their organic cation can be exchanged for Li + via cation exchange. The conceptual relation of these new salts to lithium ion battery bisoxalalatoborate additive LiBOB, a prominent solid electrolyte interface (SEI) generator, is discussed. We present a convenient synthesis of the first silylated bistetrazole and its application to access bistetrazolatoborates, structurally characterized by a ten-membered B 2 N 4 C 4 heterocyclic system. Investigated pyrazinediolatoborates are LiBOB analogues with potential as lithium ion battery additives.
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The conceptual relation of these new salts to lithium ion battery bisoxalalatoborate additive LiBOB, a prominent solid electrolyte interface (SEI) generator, is discussed. We present a convenient synthesis of the first silylated bistetrazole and its application to access bistetrazolatoborates, structurally characterized by a ten-membered B 2 N 4 C 4 heterocyclic system. Investigated pyrazinediolatoborates are LiBOB analogues with potential as lithium ion battery additives.</abstract><doi>10.1039/c7dt00308k</doi><tpages>11</tpages></addata></record>
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title New lithium borates with bistetrazolato2− and pyrazinediolato2− ligands - potentially interesting lithium electrolyte additivesElectronic supplementary information (ESI) available. CCDC 1484823-1484827 and 1527276-1527279. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c7dt00308k
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