Formation and structural characterization of a europium(II) mono(scorpionate) complex and a sterically crowded pyraza-bole.

ABSTRACT: The reaction of EuI₂(THF)₂ with potassium hydro-tris-(3,5-diiso-propyl-pyrazol-yl)borate (K[HB(3,5- ^iPr2pz)₃] (= KTp ^iPr2, pz = pyrazol-yl) in a molar ratio of 1:1.5 resulted in extensive ligand fragmentation and formation of the europium(II) mono(scorpionate) complex bis-(3,5-diisopropyl-1H-pyrazole)[hydro-tris-(3,5-diiso-propyl-pyrazol-yl)borato]iodido-europium(II), [Eu(C₂₇H₄₆BN₆)I(C₉H₁₆N₂)₂] or (Tp ^iPr2)(3,5- ^iPr2pzH)₂Eu^III, 1, in high yield (78%). As a typical by-product, small amounts of the sterically crowded pyraza-bole derivative trans-4,8-bis-(3,5-diiso-propyl

SUBMITTER: Liebing P 

PROVIDER: S-EPMC5730253 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature