A novel indicator series for measuring pKa values in acetonitrile |
| |
| Authors: | Jennifer M Heemstra |
| |
| Institution: | Departments of Chemistry and Materials Science and Engineering, The University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, IL 61801, USA |
| |
| Abstract: | A series of substituted azobenzene dyes was found to span a range of 8 pKa units in acetonitrile. The UV absorption spectra of the dyes are responsive to protonation, changing in both absorption maximum and intensity. These characteristics make the dyes useful as indicators for the measurement of pKa values of neutral organic bases that absorb in the visible region of the spectrum. |
| |
| Keywords: | Azobenzene Indicator Organic base |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
