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CAS 98837-98-0

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Bis(trifluoromethanesulfonyl)imide anion

Description:
Bis(trifluoromethanesulfonyl)imide anion, often abbreviated as TFSI, is a highly stable and non-volatile anion commonly used in various chemical applications, particularly in the field of electrochemistry and as an electrolyte in lithium-ion batteries. Its chemical structure features two trifluoromethanesulfonyl groups attached to a central nitrogen atom, contributing to its strong electron-withdrawing properties. This anion is known for its excellent solubility in a wide range of organic solvents and ionic liquids, making it a versatile component in various formulations. TFSI exhibits low viscosity and high ionic conductivity, which are desirable traits for enhancing the performance of electrolytes. Additionally, it is thermally stable, allowing it to withstand high temperatures without decomposing. The presence of fluorine atoms imparts unique properties, such as high hydrophobicity and chemical inertness, which further enhance its utility in diverse applications, including as a stabilizing agent in polymer electrolytes and in the synthesis of advanced materials. Overall, TFSI is a valuable compound in modern chemistry and materials science.
Formula:C2F6NO4S2
InChI:InChI=1S/C2F6NO4S2/c3-1(4,5)14(10,11)9-15(12,13)2(6,7)8/q-1
InChI key:InChIKey=NHHWJSXMTZIPES-UHFFFAOYSA-N
SMILES:S([N-]S(C(F)(F)F)(=O)=O)(C(F)(F)F)(=O)=O
Synonyms:
  • Bistriflylimide anion
  • Bis(trifluoromethanesulfonyl)imide anion
  • Bis(trifluoromethylsulfuryl)imide anion
  • Methanesulfonamide, 1,1,1-trifluoro-N-[(trifluoromethyl)sulfonyl]-, ion(1-)
  • Bis(perfluoromethylsulfonyl)imide anion
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