Captured by scorpionates: Using fluorinated scorpionates, remarkably stable gold(I) complexes containing ethylene are isolated and structurally characterized (see structure of molecule core: yellow Au, blue N, red B, light gray C). These adducts feature κ2-bonded tris(pyrazolyl)borate ligands, and show in the 1H and 13C NMR spectra considerably upfield-shifted ethylene signals.
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Dias et al. (2007) studied this question.
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