摘要
The preparation of an unprecedented Ge I -Ge I bonded digermylene [K 2 {Ge 2 (μ-κ 2 :η 2 :η 4 -2,6-(2,6- i Pr 2 C 6 H 3 -N) 2 -4-CH 3 C 5 H 2 N) 2 }] in an eclipsed conformation stabilized by two bridging diamidopyridyl ligands is presented. Although it exhibits an eclipsed conformation, the Ge−Ge bond length is 2.5168(6) Å, which is shorter than those in the trans-bent and gauche digermylenes. In combination with two pendant amido groups, the Ge I 2 motif is employed as a building block to assemble the first example of octagermylene [Ge 4 (μ-κ 2 :κ 1 -2,6-(2,6- i Pr 2 C 6 H 3 -N) 2 -4-CH 3 C 5 H 2 N) 2 ] 2 showing a cyclic configuration and containing three distinct types of Ge I −Ge I bonds.