PMID- 20839836
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20110118
LR  - 20100930
IS  - 1520-5207 (Electronic)
IS  - 1520-5207 (Linking)
VI  - 114
IP  - 39
DP  - 2010 Oct 7
TI  - Ether-bond-containing ionic liquids and the relevance of the ether bond position 
      to transport properties.
PG  - 12488-94
LID - 10.1021/jp104419k [doi]
AB  - The ionic liquids (ILs) 1-ethoxyethyl-2,3-dimethylimidazolium 
      bis(trifluoromethanesulfonyl)imide, [EtO(CH(2))(2)MMI][Tf(2)N], and 
      N-(ethoxyethyl)-N-methylmorpholinium bis(trifluoromethanesulfonyl)imide, 
      [EtO(CH(2))(2)MMor][Tf(2)N] were synthesized, and relevant properties, such as 
      thermal stability, density, viscosity, electrochemical behavior, ionic 
      conductivity, and self-diffusion coefficients for both ionic species, were 
      measured and compared with those of their alkyl counterparts, 
      1-n-butyl-2,3-dimethylimidazolium bis(trifluoromethanesulfonyl)imide, 
      [BMMI][Tf(2)N], and N-n-butyl-N-methylpiperidinium 
      bis(trifluoromethanesulfonyl)imide, [BMP][Tf(2)N] and 
      N-n-butyl-N-methylmorpholinium bis(trifluoromethanesulfonyl)imide 
      [BMMor][Tf(2)N]. This comparison was done to evaluate the effects caused by the 
      presence of the ether bond in either the side chain or in the organic cation 
      ring. The salt, LiTf(2)N, was added to the systems to estimate IL behavior with 
      regard to lithium cation transport. Pure [EtO(CH(2))(2)MMI][Tf(2)N] and their 
      LiTf(2)N solutions showed low viscosity and the highest conductivity among the 
      ILs studied. The H(R) (AC conductivity/NMR calculated conductivity ratio) values 
      showed that, after addition of LiTf(2)N, ILs containing the ether bond seemed to 
      have a greater number of charged species. Structural reasons could explain these 
      high observed H(R) values for [EtO(CH(2))(2)MMor][Tf(2)N].
FAU - Monteiro, Marcelo J
AU  - Monteiro MJ
AD  - Instituto de Quimica, Universidade de Sao Paulo, CP 26077, 05513-970, Sao Paulo, 
      SP, Brazil.
FAU - Camilo, Fernanda F
AU  - Camilo FF
FAU - Ribeiro, Mauro C C
AU  - Ribeiro MC
FAU - Torresi, Roberto M
AU  - Torresi RM
LA  - eng
PT  - Journal Article
PL  - United States
TA  - J Phys Chem B
JT  - The journal of physical chemistry. B
JID - 101157530
EDAT- 2010/09/16 06:00
MHDA- 2010/09/16 06:01
CRDT- 2010/09/16 06:00
PHST- 2010/09/16 06:00 [entrez]
PHST- 2010/09/16 06:00 [pubmed]
PHST- 2010/09/16 06:01 [medline]
AID - 10.1021/jp104419k [doi]
PST - ppublish
SO  - J Phys Chem B. 2010 Oct 7;114(39):12488-94. doi: 10.1021/jp104419k.