Add time:09/03/2019 Source:sciencedirect.com
The gas-phase Proton Affinity (PA) and Basicity (GB) of 2-, 3- and 4-hydroxybenzophenone isomers have been experimentally determined by the Extended Kinetic Cooks Method (EKCM), using ESI-TQ Mass Spectrometry. Our results show that 4-hydroxybenzophenone isomer (PA = 912.6 ± 8.4 kJ·mol−1) is in the order of 10 kJ·mol−1 more basic than the 2- and 3-hydroxybenzophenones isomers. The results have been rationalized and discussed by means of computational DFT calculations at B3LYP/6-311++G(d,p) level of theory.
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