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Ten novel [Cp ∗ Ru(η 6 -monosubstituted naphthalene) + O 3 SCF 3 − complexes were synthesized and characterized by 1 H, 13 C and 1 H{ 1 H}-COSY NMR spectrometry. All complexes containing electron-withdrawing substituents formed products with Cp ∗ Ru + moeity coordinated on the unsubstituted ring. In [Cp ∗ Ru(η 6 -1-naphthalamine)] + O 3 SCF 3 − , ruthenium is coordinated on the substituted ring due to the electron-donating properties of the NH 2 group. However, the methoxy and N , N -dimethylamine derivatives, despite the electron-donating properties of the substituents, coordinate the ruthenium atom on the unsubstituted ring due to steric hindrance around the substituted ring. Methylnaphthalene and hydroxynaphthalene products were formed as mixtures of coordination isomers. |
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