20109-38-0Relevant articles and documents
New ionic plastic crystals of NR4BEt3Me (R = Me and Et) and NRxR'4-xBEt3Me (R = Et, R' = Me and Pr, x = 13) in a new class of plastic crystals
Hayasaki, Tomoyuki,Hirakawa, Satoru,Honda, Hisashi
, p. 993 - 1001 (2013)
New ionic plastic crystals of NR4BEt3Me (R = Me and Et) and NRxR'4-xBEt3Me (R = Et, R' = Me and Pr, x = 13) were formed in a new region of plastic crystal. In this area, globular cations and anions are assembled by weak interactions. On the basis of our results of 1H and 13CNMR spectra and electrical conductivity measurements, we could conclude that isotropic reorientation and self-diffusion of globular cations and anions were detected in the crystal. X-ray diffraction (XRD) lines observed in RxR'4-xBEt3Me (R = Et, R' = Me, x = 04) revealed a CsCl-type cubic crystal structure. Additionally, DSC spectra revealed that this new class of plastic crystals displays low phase-transition temperatures in the plastic phase and have high melting points. The former tendency is frequently detected in molecular plastic crystals while the latter is often found in ionic plastic crystals.
Novel one-pot synthesis of quaternary ammonium halides: New route to ionic liquids
Ropponen, Jarmo,Lahtinen, Manu,Busi, Sara,Nissinen, Maija,Kolehmainen, Erkki,Rissanen, Kari
, p. 1426 - 1430 (2007/10/03)
Treatment of an amide with an alkyl or substituted alkyl halide in the presence of a weak base in a one-pot reaction leads to crystalline quaternary ammonium halides with reasonable chemical yields; some of the compounds show low melting points and a liquid range of over 50-100°C before decomposition.
