Full Length Research Paper
Abstract
Four new boroxine adducts ((B3O3(Ph)3PzH) (1), (B3O3(Ph)3(PztBu,iPrH)2) (2), (B3O3(PhF2)3PzH). PzH (3) and (B3O3(PhF2)3(PztBu,iPrH)2) (4)) using phenylboronic acid, 3,5-difluorophenylboronic acid, 1H-pyrazole (PzH) and 3-tert-butyl-5-isopropyl pyrazole (PztBu,iPrH) were prepared and characterized by elemental analysis, IR, 1H-NMR and X-ray diffraction. The crystallographic study reveals that PzH and PztBu,iPrH are bonded to boroxine molecule through B-N dative bond. It also demonstrates the different type of hydrogen bond interactions between adjacent molecules. The thermal stability of these adducts was investigated by TGA.
Key words: Boroxine, crystal structures, hydrogen bonding, thermal study.
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