1887
banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
Ultrafast dynamics of pyrrolidinium cation ionic liquids
Rent:
Rent this article for
USD
10.1063/1.1893797
/content/aip/journal/jcp/122/18/10.1063/1.1893797
http://aip.metastore.ingenta.com/content/aip/journal/jcp/122/18/10.1063/1.1893797

Figures

Image of FIG. 1.
FIG. 1.

Chemical structures of the pyrrolidinium cation ionic liquids used in this study. is -butyl--methylpyrrolidinium cation, is -methoxyethyl--methylpyrrolidinium cation, is -ethoxyethyl--methyl-pyrrolidinium cation, is bis(trifluoromethylsulfonyl)imide anion, is dicyanoamide anion, and is bromide anion.

Image of FIG. 2.
FIG. 2.

Log-log plots of Kerr transients for (a) , (b) , (c) , (d) , and (e) . Triexponential fit functions are also shown in the figure.

Image of FIG. 3.
FIG. 3.

Plots of the slow relaxation time constant for the five pyrrolidinium ionic liquids. Squares, triangles, and circles represent points calculated using the molecular volumes of the anion, cation, and the sum of cation and anion, respectively.

Image of FIG. 4.
FIG. 4.

Fourier-transform frequency power spectra of (a) , (b) , (c) , (d) , and (e) . The contribution of the picosecond relaxation was subtracted.

Image of FIG. 5.
FIG. 5.

Multimode Brownian oscillator fits to the intermolecular spectrum of from 0 to . The bottom figure presents the best fit using three Brownian oscillators, the middle figure the best fit with two Brownian oscillators, and the residuals for both fits are shown at top.

Image of FIG. 6.
FIG. 6.

Low-frequency power spectra of (a) , (b) , (c) , (d) , and (e) (bold dotted lines). Entire fit curves (solid lines) and each Brownian oscillator fits (small dotted, short dashed, and long dashed lines) are also shown. Intramolecular modes are also fitted by a Lorentzian function (dot-dash lines).

Tables

Generic image for table
Table I.

Triexponential fit parameters for diffusive Kerr transients of pyrrolidinium ionic liquids.

Generic image for table
Table II.

Intramolecular vibrational band frequencies observed in Fourier-transform Kerr spectra of ionic liquids. In the Assignment column, denotes an anion vibration and a cation vibration.

Generic image for table
Table III.

Formula weight , density , formula volume , and viscosity of the five pyrrolidinium ionic liquids.

Generic image for table
Table IV.

Brownian oscillator fit parameters for the low-frequency power spectra of the pyrrolidinium ionic liquids.

Loading

Article metrics loading...

/content/aip/journal/jcp/122/18/10.1063/1.1893797
2005-05-10
2014-04-21
Loading

Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Ultrafast dynamics of pyrrolidinium cation ionic liquids
http://aip.metastore.ingenta.com/content/aip/journal/jcp/122/18/10.1063/1.1893797
10.1063/1.1893797
SEARCH_EXPAND_ITEM