Similarly, the Co-N bonds involving pyridine-nitrogen atoms were found to be shorter in 12 in comparison to the mononuclear reference complex of Glatz. With 2.0418( ) Å the Co1-N6 bond belonging to the μ2-coordinating TMSMAPY ligand was found to be remarkably short and in the same range as amido-nitrogen Co-N bonds. The interatomic Co1-Co2 distance was 2.9531(4) Å and thus distinctly longer than in the dimeric silylamide compounds 1 and 2. In dependency on the TMSMAPY chelation mode, slight deviations in the bite angles were found in 12. For those ligands coordinating without bridging, angles N1-Co1-N2 and N7-Co2-N8 were 65.441(51) ° and 66.007(49) ° while the angle N3-Co1-N4, with N3 being the μ2-bridging amido-nitrogen, was slightly narrower (63.761(48) °). The N-C-N ligand spread angle for the fully μ2-bridging TMSMAPY ligand, namely the angle N5-C3-N6, was 117.288(126) ° and thus expectedly larger than the average spread angle of around 112 ° found for the other ligands. Utilizing the angles listed in Table , the τ5 value for central ion Co1 was calculated to be 0.533 while the τ4 and τ4' values for ion Co2 were determined to be 0.845 and 0.842. Interestingly, an only minor distorted tetrahedral coordination environment was established around the latter Co(II) ion, potentially on the expense of the coordination environment of the former that found itself right between a square pyramidal and a trigonal bipyramidal coordination geometry.