Ferrocene‐Based N‐Heterocyclic Plumbylenes [Fe{(η<sup>5</sup>‐C<sub>5</sub>H<sub>4</sub>)NSiMe<sub>2</sub>R}<sub>2</sub>Pb:]: Influence of the Steric Demand of the<i>N</i>‐Substituents on Their Dimerization via C−H Activation with Pb<sup>II</sup>
Chemistry - an Asian journal