218151-78-1

Basic information

• Product Name: 1,2-DIMETHYL-3-PROPYLIMIDAZOLIUM IODIDE
• Synonyms: 1,2-DIMETHYL-3-PROPYLIMIDAZOLIUM IODIDE;DMPII;1-propenyl-2,3-MethyliMidazoliuM iodide;1-Propyl-2,3-dimethylimidazolium iodide;2,3-Dimethylpropylimidazolium iodide;N-Methyl-N'-n-propyl-2-methylimidazolium iodide;1,2-Dimethyl-3-propyl-1H-imidazol-3-ium iodide;1,2-DIMETHYL-3-PROPYLIMIDAZOLIUM
• CAS NO: 218151-78-1
• Molecular Formula: C₈H₁₅N₂*I
• Molecular Weight: 266.12257
• EINECS: 200-145-6
• Mol File: 218151-78-1.mol

Chemical Properties

• Appearance: /
• Density: 1.45 g/cm3(Temp: 85 °C)
• Storage Temp.: Keep in dark place,Inert atmosphere,Room temperature
• Water Solubility: Soluble in water
• CAS DataBase Reference: 1,2-DIMETHYL-3-PROPYLIMIDAZOLIUM IODIDE(CAS DataBase Reference)
• NIST Chemistry Reference: 1,2-DIMETHYL-3-PROPYLIMIDAZOLIUM IODIDE(218151-78-1)
• EPA Substance Registry System: 1,2-DIMETHYL-3-PROPYLIMIDAZOLIUM IODIDE(218151-78-1)

Safety Data

• Hazardous Substances Data: 218151-78-1(Hazardous Substances Data)

Usage

InChI:InChI=1/C8H15N2.HI/c1-4-5-10-7-6-9(3)8(10)2;/h6-7H,4-5H2,1-3H3;1H/q+1;/p-1

Upstream product

• 1739-84-0 1,2-dimethyl-1H-imidazole 
• 107-08-4 1-iodo-propane 
• 91631-71-9 1-methyl-2-[(trimethylsilyl)methyl]-1H-imidazole 

Downstream Products

• 1402088-99-6 1,2-dimethyl-3-propylimidazolium formate 

Relevant articles and documents

Influence of methyl and propyl groups on the vibrational spectra of two imidazolium ionic liquids and their non-ionic precursors

Imidazolium-based ionic liquids (ILs) are usually synthesized using non-ionic imidazole compounds as precursors. While the ILs have been extensively studied in the past, the precursors was not paid much attention to. The structural analysis of the precursors, however, may offer an opportunity to better understand the behavior of the ionic compounds of interest. In this paper, a comparative study of two ionic liquids and their imidazole precursors is presented. The precursors 1-methylimidazole [1-MIM] and 1,2-dimethylimidazole [1,2-DMIM] are compared in order to explain the influences of the methyl group at the C(2) position (methylation). Since the imidazole compounds are non-ionic, the spectroscopic properties of [1-MIM] and [1,2-DMIM] are not affected by cation-anion interactions. In addition, the products obtained by alkylation using propyl iodide leading to the corresponding IL compounds 1-methyl-3-propylimidazolium iodide [1-MPrIM+][I?] and 1,2-dimethyl-3-propylimidazolium iodide [1,2-DMPrIM+][I?] were studied. For this purpose, vibrational spectroscopy in terms of FT-Raman and FTIR in the wavenumber range from [45 to 3500?cm?1] and from [600 to 4000?cm?1], respectively, was performed. Moreover, to aid the spectral assignment, density functional theory (DFT) calculations were carried out. The aim was to investigate the vibrational structure, to understand the effects of the propyl group at the N(3) and of the methyl group at the C(2) position, and to analyze the resulting cation-anion interactions. The data indicate that the iodide ion predominantly interacts with the C(2)[sbnd]H group via hydrogen bonding. Upon methylation, the C(4/5)[sbnd]H moiety becomes the main interaction site. However, an interaction takes place only with one of the two hydrogen atoms resulting in a split of the initially degenerate CH stretching modes.

Convenient syntheses of bulky group containing imidazolium ionic liquids

We report syntheses of bulky group containing imidazolium based ionic liquids. The bulky groups were introduced at N-1, C-2, and N-3 positions of the imidazole ring using convenient methodologies. Copyright

Investigation of carbon-2 substituted imidazoles and their corresponding ionic liquids

The functionality at the C-2 position of the imidazole ring plays a key role in defining the chemical properties of the imidazoles and their corresponding ionic liquids. Imidazoles 1-6 with different C-2 functionality were synthesized and their corresponding ionic liquids were systematically investigated. Based on their physical properties the six imidazoles can be divided into three groups. (1) The imidazoles 2 and 3 are capable of self-polymerization to form poly(ionic liquid)s, and they are characterized with a strong leaving group at the C-2 position. (2) The imidazoles 4 and 5 can form ionic liquids, but they are very sensitive to moisture. (3) The imidazoles 1 and 6 can form stable ionic liquids, and their stabilities were influenced by the electronic effects of the substituents at the C-2 position.