Synthesis, characterisation and molecular structure of a calcium stannyl derivative [Ca{Sn(mu-OSiMe2But)(3)}(2)]

The compound, [Ca{Sn(mu-OSiMe2But)(3)}(2)] 1, was prepared by the condensation reaction of Ca(OSiMe2But)(2) with Sn(OSiMe2But)(2) in dme. The structural characterisation revealed that 1 crystallises in the monoclinic system {Space group P2(1)/n (non-standard N-o 14)}. Each of the two Sn(mu-OSiMe2But)(3) anion binds the Ca(II) cation in an eta(6) fashion [av. Ca - O 2.408 Angstrom ]. Multinuclear [C-13, Si-29 and Sn-119 ] solid-state NMR spectroscopic studies are also reported. Compound 1 showed satisfactory elemental analysis