Figure 2. Numbered structure of compound 3 and the electronic charge of the constituent atoms (O(1): -0.22225; C(2): 0.37325; C(3): -0.04368; C(4): -0.10104; C(5):-0.12951; C(6):-0.21438; C(7):-0.15133; C(8): -0.19681; C(9): 0.09185; C(10):-0.13631; O(11):-0.21277; C(12):-0.16866; C (13): 0.28525; O (14):-0.29788; C (15):-0.18160; C (16):-0.13071; C (17): -0.20661; C (18): -0.16358; C (19):-0.20360; C (20):-0.14969; O (21): -0.32913)

From

3-(2-Phenyl-oxo-ethoxy)-2H-chromen-2-one as New 3-Hydroxycoumarin Derivative: Synthesis, Characterization and Fragmentation Study in ESI-MS

Jules Yoda, Siaka Sosso, Abdoulaye Djandé, Adama Saba

World Journal of Organic Chemistry. 2020, 8(1), 11-16 doi:10.12691/wjoc-8-1-4