Synthesis of Mono-Substituted Carboxylic Derivatitives of Zirconocenes

Abstract

Eight (RC₅H₄)₂ZrCl(O₂CR′) complexes, where R = H, CH₃; R′ =(α-C₁₀H₇, α-C₁₀H₇CH₂, C₆H₅CH=CH, p-Cl-C₆H₄OCH₂, were prepared by the reaction of R′CO₂Na with (RC₅H₄)₂ZrCl₂ in a 1:1 molar ratio in toluene at room temperature. The compositions, structures and coordinative modes of the carboxylate ligands in these complexes have been characterized by elemental analysis and IR, ¹H-NMR spetra. All the complexes have five-coordinate, 18-electron zirconocene structures.