Fluoroboro and Alkoxyboro-capped Encapsulated Compounds of Iron(II) Derived from Oxalodihydroxamic Acid

Abstract

A fluoroboro-capped iron(II) clathrochelate was synthesized in one step
reaction by combining iron(II), dihydroxamic acid and boron trifluoride in
butanol medium followed by the addition of KOH dissolved in butanol. A
series of alkoxyboro-capped iron(II) clathrochelates were also synthesized
in one step reaction by combining iron(II), dihydroxamic acid and boric
acid. The alkoxy groups were provided by the corresponding alcohol.
Elemental analyses correspond to the stoichiometry, [FeL₃(BX)₂]
L = Oxalodihydroximate ion,  X = F, OC₂H₅,  i-OC₃H₇ and n-OC₄H₉). The
complexes have red to deep violet colour.