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. 2018 Feb 12;3(2):1823–1833. doi: 10.1021/acsomega.7b01805

Figure 4.

Figure 4

2D synchronous (A, −0.02–3.92) and asynchronous (B, −0.20–0.20) correlation spectra contour maps of [Bpy][DCA]/DMSO-d6 mixtures in the 3100–2850 cm–1 region. The red and blue regions represent the positive and negative response signals, respectively.