Temperature and H/D Isotopic Effects in the IR Spectra of the Hydrogen Bond in Solid-State 2-Furanacetic Acid and 2-Furanacrylic Acid
Figure 9
Polarized IR spectra of (a) d1-2-furanacetic acid and (b) d1-2-furanacrylic acid crystals measured at 77 K in the band frequency range. (a) 2-Furanacetic acid crystal (ca. 10% H and 90% D). (I) The electric field vector parallel to the -axis, (II) The vector parallel to the *-axis. (b) 2-Furanacrylic acid crystal (ca 65% H and 35% D). (I) The electric field vector parallel to the c-axis, (II) The E vector parallel to the *-axis.