Several 1,1′‐diphosphanyl‐substituted metallocenes of magnesium (magnesocenes) were synthesized, structurally characterized, and their reactivity and coordination chemistry were investigated. Transmetalation of these magnesocenes gives access to group 14 metallocenes (tetrelocenes), as well as to group 15 stibonocenes. These s‐ and p‐block metallocenes represent a novel class of bis(phosphanyl) ligands, exhibiting Lewis‐amphiphilic character. Their coordination chemistry towards different transition‐metal and main‐group fragments was investigated and different complexes are presented.
The synthesis and characterization of bis(di-tert-butylindenyl) germanium(ii), tin(ii) and lead(ii) complexes are reported, which includes the first structurally authenticated example of a bis(indenyl)germanocene.
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