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Supporting Information Electric Field Reversal of Na2SO4, (NH4)2SO4, and Na2CO3 relative to CaCl2
 

Summary: S1
Supporting Information
Electric Field Reversal of Na2SO4, (NH4)2SO4, and Na2CO3 relative to CaCl2
and NaCl at the Air/Aqueous Interface revealed by Heterodyne Detected
Phase-Sensitive Sum Frequency
Wei Hua, Aaron M. Jubb, and Heather C. Allen*
Department of Chemistry, The Ohio State University, 100 West 18th Ave, Columbus, OH, 43210
allen@chemistry.ohio-state.edu
Re (2)
spectra
The Re (2)
spectra of water molecules at vapor/aqueous solution interfaces are shown in Figure
S1. The result of spectral convolution of the Im (2)
component with the Re (2)
component
accounts for the changes of spectral line shape relative to the neat water spectrum observed with
conventional VSFG (Fig. 1a). In the case of the calcium chloride salt solution VSFG spectrum
(Fig. 1a), this convolution explains the enhancement of the 3300 cm-1
feature, whereas for the
other salt solutions convolution with the Re (2)

  

Source: Allen, Heather C.- Department of Chemistry, Ohio State University

 

Collections: Chemistry