Electronic structure comparisons of isostructural early d- and f-block metal(iii) bis(cyclopentadienyl) silanide complexes.

ABSTRACT: We report the synthesis of the U(iii) bis(cyclopentadienyl) hypersilanide complex [U(Cp'')₂{Si(SiMe₃)₃}] (Cp'' = {C₅H₃(SiMe₃)₂-1,3}), together with isostructural lanthanide and group 4 M(iii) homologues, in order to meaningfully compare metal-silicon bonding between early d- and f-block metals. All complexes were characterised by a combination of NMR, EPR, UV-vis-NIR and ATR-IR spectroscopies, single crystal X-ray diffraction, SQUID magnetometry, elemental analysis and ab initio calculations. We find that for the [M(Cp'')₂{Si(SiMe₃)₃}] (M = Ti, Zr, La, Ce, Nd, U) series the unique anisotropy axis is conserved tangential to ; this is governed by the hypersilanide ligand for t

SUBMITTER: Gransbury GK 

PROVIDER: S-EPMC9847655 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature