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. Author manuscript; available in PMC: 2013 Jul 24.
Published in final edited form as: Biochemistry. 2012 Jul 12;51(29):5822–5830. doi: 10.1021/bi300551b

Table 1.

The measured total differential Raman cross sections for valeramide (mbarn·molecule−1·sr−1) at 22 °C.

AmI AmII δasCH3 AmIII+δCH2 ωCH2 rNH21 rNH22
νex = 204 nm in water 5.4 17 21 33 3.3 5.0 5.6
in acetonitrile 11 3.1 13 29 3.2 1.7 4.4
νex = 198 nm in water 14 52 58 94 11 14 15
in acetonitrile 41 50 35 91 10 12 16
*

We did not calculate the Raman cross sections for valeramide powder because of the lack of an intensity internal standard.