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. Author manuscript; available in PMC: 2012 Aug 31.
Published in final edited form as: J Am Chem Soc. 2011 Aug 10;133(34):13236–13239. doi: 10.1021/ja2042589

Figure 1.

Figure 1

Absorbance (upper) and Stark (lower) spectra of the phosphate region of phospholipid/toluene samples at 77K. The spectra of the phospholipid symmetric stretch (left) and the antisymmetric stretch (right) were scaled to M−1cm−1, and Stark spectra (bottom panels) were additionally scaled to an applied field of 1 MV/cm. Experimental Stark spectra are shown as dots, and numerical fits as solid red lines.