-pyridyl)porphyrinato-manganeseIJIII) (MnTPyP+) ions intercalated inside nano- and micro-size natural clay powders effectively catalyzed the hydrosilylation reaction of 1-octene and triIJethoxy)silane under mild conditions. The results showed that the homogeneous MnTPyP+ ions catalyzed the reaction where both branched and linear products were observed. Intercalation significantly enhanced both catalyst activity and selectivity. Production of the linear triIJethoxy)silyl-1-octane as sole product was confirmed by FT-IR and NMR spectra, in the case of the intercalated catalyst. The activity enhancement was more pronounced in the case of the nano-particle supported catalyst system, with turnover frequency (TF) values up to 1200 min−1 and 85% conversion observed in less than 20 min. The intercalated catalyst systems were easy to recover and were reused three times, while retaining up to 80% of their original activity. Effects of different reaction parameters on the initial reaction rate, such as clay particle size, solvent polarity, reactant concentration, catalyst loading and temperature, were investigated. A new plausible mechanism, with evidence and justifications, is proposed

العنوان

Reaction Chemistry & Engineering

الناشر

RSC

بلد الناشر

الولايات المتحدة الأمريكية

Indexing

Scopus

معامل التأثير

5,0

نوع المنشور

Both (Printed and Online)

المجلد

1

السنة

2016

الصفحات

9