Basicity Characterization of Imidazolyl Ionic Liquids and Their Application for Biomass Dissolution

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td class="align_left">Band (cm<sup>−1</sup>)</td><td class="align_center">Assignment</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td class="align_left">3200–3500</td><td class="align_center">O–H vibrations</td></tr><tr><td class="align_left">1730</td><td class="align_center">C=O stretching vibration</td></tr><tr><td class="align_left">1591</td><td class="align_center">Aromatic skeletal vibration breathing with C=C stretching</td></tr><tr><td class="align_left">1503</td><td class="align_center">Aromatic skeletal vibration</td></tr><tr><td class="align_left">1260</td><td class="align_center">asymmetric bending in CH<sub>3</sub></td></tr><tr><td class="align_left">1251</td><td class="align_center">C–O vibration in the syringyl ring</td></tr><tr><td class="align_left">1050</td><td class="align_center">C–O stretching vibration in cellulose/hemicellulose</td></tr><tr><td class="align_left">890</td><td class="align_center">C–H deformation vibration in cellulose</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Band assignments for FTIR spectra.</div>

International Journal of Chemical Engineering

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Table 3

Table 3: Basicity Characterization of Imidazolyl Ionic Liquids and Their Application for Biomass Dissolution 