Oxidation reactions using water, hydrogen peroxide and halogens to give pallad(IV) cyclopentane complexes PdX(C4H8 {(pz)3BH} (X = OH, Cl, Br, I). The crystal structure of the hydroxoplatinum(IV) complex Pt(OH)Me2{(pz)3BH}, formed by use of water as an oxidant

The pallada(II)cyclopentane reagent Pd(C₄H₈{(pz)₃BH}]⁻, generated by addition of potassium tris(pyrazol-1-yl)borate to the tetramethylethylenediamine analogue, reacts with water or hydrogen peroxide to give hydroxopalladium(IV) complex Pd(OH)(C₄H₈){(pz)₃BH}. Similar oxidation reactions occur with phenyliodonium dichloride, bromine and iodine to give PdX(C₄H₈){(pz)₃BH} (X = Cl, Br, I). The hydroxoplatinum(IV) complex Pt(OH)Me₂{(pz)₃BH} has been obtaine reaction of PtMe₂(SEt₂)]₂ with K(pz)₃BH], followed by addition of water, and its structure determined by an X-ray diffraction study.