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. 2017 Dec 27;2(12):9241–9249. doi: 10.1021/acsomega.7b01214

Figure 3.

Figure 3

Concentration dependence of SFG susceptibilities (|χ(2)| = |Aq/Γq) and peak center wavenumbers (ω0) of thymine groups (A–C) and PO2– groups (D–F). (A) χppp(2) and χssp of C4=O and C5=C6 in-phase 0° stretching mode in H2O solutions; (B) χppp(2) and χssp of C4=O and C5=C6 in-phase 0° stretching mode in D2O solutions; (C) ω0 of C4=O and C5=C6 in-phase 0° stretching mode in H2O and D2O solutions; (D) χppp(2) and χssp of symmetric PO2– stretching mode in H2O solutions; (E) χppp(2) and χssp of symmetric PO2– stretching mode in D2O solutions; (F) ω0 of symmetric PO2– stretching mode.