Recent efforts in our group have focused on the preparation and characterization of zirconocenes with a phosphine linker (PhP).  Specifically, synthesis of a rac/meso mixture of singly linked PhP(t-Bu-Cp)₂Zr{PhN(CH₂)₃NPh}₂ and conversion to the corresponding zirconocene dichlorides will be presented.  Progress towards the synthesis of a doubly linked zirconocene, [(Me₂Si)(PhP){C₅H₂-4-t-Bu}₂]ZrCl₂, will also be discussed.  Structural analysis of these singly and doubly bridged zirconocenes has the potential to reveal valuable insights for issues of regiocontrol in Ziegler-Natta polymerization.