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Electronic Supplementary Material (ESI) for Physical Chemistry Chemical Physics This journal is © The Owner Societies 2013

Supplimentary Information Figure Legends:

S1: Raman spectra of RNA building blocks and related compounds. All spectra are the average of 3 Raman spectra and have been baseline corrected, buffer subtracted and scaled to an effective

5 concentration of 50 mM. (a) related molecules: adenine (black), (red) and adenosine monophosphate (blue). The measured concentrations were 47.81 mM, 46.40 mM and 56.75 mM, respectively. (b) related molecules: cytosine (black), (red) and (blue). The measured concentrations were 47.70 mM, 56.74 mM and 55.38 mM, respectively. (c) related molecules: guanine (black), (red) and guanosine

10 monophosphate (blue). The measured concentrations were 46.19 mM, 63.90 mM and 46.67 mM, respectively. (d) related molecules: uracil (black), (red) and (blue). The measured concentrations were 48.09 mM, 48.32 mM and 67.64 mM, respectively. (e) and molecules: ribose (black), ribose phosphate (red) and sodium phosphate (blue). The measured concentrations were 287.08 mM, 434.58 mM and 47.75 mM, respectively.

15 S2: Second derivative spectra of the measured RNA Raman spectra; SL-HIV1 (black), SL-APTR (red) and SL-SARS (blue). The positions of peaks discussed in the text are noted.

Electronic Supplementary Material (ESI) for Physical Chemistry Chemical Physics This journal is © The Owner Societies 2013

S1:

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Electronic Supplementary Material (ESI) for Physical Chemistry Chemical Physics This journal is © The Owner Societies 2013

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Electronic Supplementary Material (ESI) for Physical Chemistry Chemical Physics This journal is © The Owner Societies 2013

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Electronic Supplementary Material (ESI) for Physical Chemistry Chemical Physics This journal is © The Owner Societies 2013

Figure S2.

SL-SARS SL-APTR SL-HIV1

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