Abstract
AbstractThe transamination reaction of [Ge{N(SiMe3)2}2] with two equivalents of 3,5‐di(t‐butyl)pyrazole H(3,5‐tBu2pz) yielded the homoleptic germanium(II) pyrazolyl compound 4. Treatment of 4 and its analogous tin(II) compound 1 with triflic acid (HOTf) in diethyl ether afforded cationic, triply pz‐bridged cages of the general formula [E(μ2‐3,5‐tBu2pz)3E]+OTf− (E = Ge 5, Sn 6) in good yields. The sterically demanding t‐butyl substituted μ2‐pyrazolyl bridges adopt a skew arrangement with respect to the E···E vector in the solid state. DFT calculations were performed on the cage compounds 5 and 6 in order to elucidate the influence of the tilting of the pyrazolyl ligands as well as a weak coordination of the triflate counter anion in 6 on the intramolecular element element distances within the cationic moieties.
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