8. Zirconium and hafnium

Synthesis and characterisation of novel zirconium(iv) derivatives containing the bis-amido ligand SiMe2(NRR′)2

“…The coordination polyhedron of each zirconium centre is a distorted trigonal bipyramid (Fig. 1(B)), with N(3), N(4), N(8) and N(1), N(2), N (6) in the equatorial planes, and N(2), N (7) and N(3), N (5) in the apical positions, respectively. Selected bond distances and angles are reported in Table 2.…”