A Kryptoracemic Hydroperoxide

2-Trimethylsilyl-3-methyl-3H-benz[f]indol-3-yl hydroperoxide, C₁₆H₁₉NO₂Si, crystallizes in space group P2₁ with two independent molecules of opposite handedness in the asymmetric unit. The two differ by a 60° rotation of the trimethylsilyl group with respect to the indole ring. The hydroperoxide O-O distances in the two molecules are 1.453 (2) and 1.465 (3) Å. The hydroperoxide groups form intermolecular hydrogen bonds of O...N(indole) lengths 2.763 (3) and 2.813 (3) Å.

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