Racemic 1,1,6,6-Tetramethyl-1,6-distannatetranaphtho[2,1-b;1',2'-d;2'',1''-g;1''',2'''-i]cyclodeca-2,4,7,9-tetraene

The title compound, [Sn₂(C₂₀H₁₂)₂(CH₃)₄], which is the first chiral tin-bridged cyclophane, was prepared from the reaction of racemic 2,2'-dilithio-1,1'-binaphthyl and dimethyltin dichloride. The molecule has approximate local D₂ 222 symmetry.

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