The first structurally characterised solvent-free ς-bonded diorganocalcium, Ca[C(SiMe3)3]2
Abstract
The monomeric solvent-free compound CaR2 1 [R = C(SiMe3)3] is obtained as colourless air- and moisture-sensitive crystals from the reaction between KR and CaI2; in the solid the C–Ca–C axis is bent with Ca–C 2.459(9) Å and C–Ca–C 149.7(6)°; reactions of 1 with ethers ROEt give RH, ethene and Ca(OEt)2.