Study combines NMR and X-ray crystallography to reveal coordination characteristics of cationic gold complexes with indoles, indicating important structural features.
Cationic Au(I) complexes of indoles embedding Buchwald phosphine ligands are described. A study combining NMR and X-ray crystallography is described in order to understand the nature of the coordination of the cationic Au atom to the C2–C3 double bond of indoles. Our studies reveal an intermediate coordination between η2 and η1, demonstrated by a strong sp3 character of the C3 atom and a significant slippage toward the C3 atom of the indole rings.
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Milcendeau et al. (2025) studied this question.
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