Exploring reactivity of a bis-sulfonium zirconocene-ate dimer: Synthesis of various zwitterionic phosphonium anionic zirconocene complexes

Synthesis and Molecular Structure of Di(3,5-di-tert-butylcatecholato)-dicyclopentadienylzirconium(IV)

“…Although we observed the formation of TlCl from this reaction, several zirconium products were also generated, as evidenced by numerous Cp resonances in the 1 H NMR spectrum. Likewise, the arylspiroboronate ester appears to have degraded into a number of products (as observed by 11 B NMR spectroscopy) including B2(1,2-O2C6H2-3,5-di-tertbutyl)3, a common boron redistribution product found in reactions of catecholborane derivatives. 4 Addition of one or two equivalents of the thallium salt to Cp2ZrCl2 also gave complex product distributions.…”

“…The configuration of the Cp rings is similar to related monomeric structures. 11 Further studies on the reactivity of this thallium salt are currently underway, the results of which will be reported in due course. Table 2 Selected bond lengths (Å) and angles (˚) Fig.…”