Synthesis of Oxygen‐Containing Spirobipyrrolidinium Salts for High Conductivity Room Temperature Ionic Liquids |
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| Authors: | Seiichiro Higashiya Thamarai?Selvi Devarajan Manisha?V Rane‐Fondacaro Christopher Dangler Jeremy Snyder Pradeep Haldar |
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| Institution: | 1. Department of Chemistry, University at Albany, 1400 Washington Avenue, Albany, New York 12222, USA;2. College of Nanoscale Science and Technology, University at Albany, 255 Fuller Road, Albany, New York 12203, USA |
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| Abstract: | Synthesis of ionic liquids (IL) based on oxygen‐containing spirobipyrrolidinium salts with BF4, BF3C2F5, and NTf2 as counterions was undertaken. Their physical and electrochemical properties were evaluated for suitability for Room Temperature Ionic Liquids (RTIL) application. Reduction in melting point occurred upon exchange of C(2) by an O‐atom of spirobipyrrolidinium, without sacrificing the electrochemical stability; while introduction of alkyl groups between the N‐ and O‐atoms led to incorporation of asymmetry, and hence reduced the melting points, and viscosity. |
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| Keywords: | Ionic liquids Spirobipyrrolidinium salts Electric double layer capacitor Electrochemical stability Conductivity |
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