Synthesis and Characterization of Thorium <i>a</i><i>nsa</i>-Cyclopentadienyl−Amido Complexes GoldenJeffery T. Kazul'kinDenis N. ScottBrian L. VoskoboynikovAlexander Z. BurnsCarol J. 2003 Two new thorium complexes, a tetramer (<b>1</b>) of C<sub>5</sub>Me<sub>4</sub>Si(Me)<sub>2</sub>NPhThCl<sub>2</sub>, and a dimer (<b>2</b>) of Li(Et<sub>2</sub>O)<sub>2</sub>[C<sub>5</sub>Me<sub>4</sub>Si(Me)<sub>2</sub>N-<i>t</i>-BuThCl<sub>3</sub>], have been synthesized and characterized. In both cases, structural studies reveal the thorium centers may be viewed as having pseudo-octahedral geometry, formally with two dative and two covalent chloride interactions.