384347-06-2

Basic information

• Product Name: N-OCTYLPYRIDINIUM BIS(TRIFLUOROMETHYLSULFONYL)IMIDE
• Synonyms: N-OCTYLPYRIDINIUM BIS(TRIFLUOROMETHYLSULFONYL)IMIDE
• CAS NO: 384347-06-2
• Molecular Formula: C13H22N.C2F6NO4S2
• Molecular Weight: 472.469
• Mol File: 384347-06-2.mol
• Article Data: 5

Chemical Properties

• Appearance: /
• Density: 1.3327 g/cm3
• CAS DataBase Reference: N-OCTYLPYRIDINIUM BIS(TRIFLUOROMETHYLSULFONYL)IMIDE(CAS DataBase Reference)
• NIST Chemistry Reference: N-OCTYLPYRIDINIUM BIS(TRIFLUOROMETHYLSULFONYL)IMIDE(384347-06-2)
• EPA Substance Registry System: N-OCTYLPYRIDINIUM BIS(TRIFLUOROMETHYLSULFONYL)IMIDE(384347-06-2)

Safety Data

• Hazardous Substances Data: 384347-06-2(Hazardous Substances Data)

Usage

General Description

N-octylpyridinium bis(trifluoromethylsulfonyl)imide is a chemical compound used as an ionic liquid. It consists of a cation (N-octylpyridinium) and an anion (bis(trifluoromethylsulfonyl)imide). N-OCTYLPYRIDINIUM BIS(TRIFLUOROMETHYLSULFONYL)IMIDE is known for its ability to dissolve a wide range of organic and inorganic compounds, making it useful as a solvent in various chemical processes and as an electrolyte in batteries and supercapacitors. N-octylpyridinium bis(trifluoromethylsulfonyl)imide is also being researched for its potential applications in fuel cells, catalysis, and as an anti-microbial agent. Its unique combination of properties, including high thermal stability and low volatility, make it an attractive choice for a range of industrial and research applications.

Upstream product

• 110-86-1 pyridine 
• 111-83-1 1-bromo-octane 
• 90076-65-6 bis(trifluoromethane)sulfonimide lithium 
• 2534-66-9 N-(n-octyl)pyridinium bromide 
• 111-85-3 n-chlorooctane 
• 4086-73-1 N-octylpyridinium chloride 

Relevant articles and documents

Anion Analysis of Ionic Liquids and Ionic Liquid Purity Assessment by Ion Chromatography

The simultaneous determination of halide impurities (fluoride, chloride, bromide, and iodide) and ionic liquid (IL) anions (tetrafluoroborate, hexafluorophosphate, and triflimide) using ion chromatography was developed with a basic, non-gradient ion chromatography system. The non-gradient method uses the eluent Na2CO3/NaHCO3in water/acetonitrile (70:30 v:v) on the AS 22 column to enable a rapid and simultaneous analysis of different IL and halide anions within an acceptable run-time (22 min) and with good resolution R of larger than 2.4, a capacity k′ between 0.4 and 5.1, selectivities α between 1.3 and 2.1, and peak asymmetries Asof less than 1.5. Halide impurities below 1 ppm (1 mg·L–1of prepared sample solution) could be quantified. A range of ionic liquids with tetrafluoroborate [BF4]–, hexafluorophosphate [PF6]–, and bis(trifluoromethylsulfonyl)imide (triflimide) [NTf2]–anions combined with cations based on imidazole, pyridine, and tetrahydrothiophene could be analyzed for their anion purity. The IL-cations do not influence the chromatographic results. With the analysis of 18 ILs differing in their cation-anion combination we could prove the general applicability of the described method for the anion purity analysis of ionic liquids with respect to halide ions. The IL-anion purity of most ILs was above 98 wt %. The highest IL-anion purity was 99.8 wt %, implying anion impurities of only 0.2 wt %. The used halide anion from the synthesis route was the major anion impurity, yet with chloride also bromide and fluoride (potentially from hydrolysis of [BF4]–) were often detected. When iodide was used, at least chloride but sometimes also bromide and fluoride was present. However, even if the IL-anion content is above 99 wt %, it does not necessarily indicate an ionic liquid devoid of other impurities. From the IC analysis, one can also deduce a possible cation impurity if one takes into account the expected (calculated) IL-anion content. A matching experimental and theoretical IL-anion content excludes, a higher experimental content indicates the presence of residual KBF4, NH4PF6, or LiNTf2salt from the halide to IL-anion exchange.

Octanol/water partition coefficients of pyridinium-based ionic liquids

Nine pyridinium-based ionic liquids were synthesised, which include 1-butylpyridinium bromide ([BPYR] [Br]), 1-hexylpyridinium bromide ([HPYR][Br]), 1-octylpyridinium bromide ([OPYR][Br]), 1-hexylpyridinium bis(trifluoromethylsulfonyl)imide ([HPYR] [NTf2]), 1-octylpyridinium bis(trifluoromethylsulfonyl)imide ([OPYR][NTf2]), 1-hexylpyridinium trifluoromethanesulfonate ([HPYR] [TFO]), 1-octylpyridinium trifluoromethanesulfonate ([OPYR][TFO]), 1-hexylpyridinium tetrafluoroborate ([HPYR] [BF4]), 1-octylpyridinium I tetrafluoroborate ([OPYR][BF4]). The octanol/water partition coefficients (KOWs) of these pyridinium-based ionic liquids were determined by shake-flask method. It is found that the pyridinium-based ionic liquids measured in this work are extremely hydrophilic except for [OPYR] [NTf2]. It is also found that KOWs of [NTf2] ionic liquids were dependent on the concentration and high ionic liquids concentration in water leads to big KOW.

A speedy one-pot synthesis of second-generation ionic liquids under ultrasound and/or microwave irradiation

The present work describes an efficient one-pot synthesis of second-generation ionic liquids (ILs), combining in one step the Menshutkin reaction and anion metathesis. Working in a closed vessel under microwaves, or better still under simultaneous ultrasound and/or microwave irradiation, in a few minutes a series of ILs with 1-methylimidazole or pyridine cores were obtained in high yields (80?97% isolated). Under conventional heating, ILs could not be prepared in one pot in acceptable times and yields, whereas our protocol, carried out with commercially available equipment, was highly effective and reproducible. Moreover, 1H NMR analysis and ion-exchange chromatography showed that the present solventless procedure afforded satisfyingly pure ILs. CSIRO 2007.