Heme-containing nitrite reductases bind and activate nitrite by a mechanism that is proposed to involve interactions with Brønsted acidic residues in the secondary coordination sphere. To model this functionality using synthetic platforms that incorporate a Lewis acidic site, heterobimetallic CoMg complexes supported by diimine-dioxime ligands are described. The neutral (μ-NO2)CoMg species 3 is...

Abstract Methyl levulinate was selectively formed from glucose and methanol over a copper modified Beta zeolite bifunctional catalyst at 180 °C under argon atmosphere. The selectivity to methyl substantially exceeded previously reported in the open literature results. modification done through an ion-exchange method using solution of nitrate, followed by drying calcination catalyst. Copper chan...

The incorporation of transition metals into frustrated Lewis pairs (FLPs) offers multiple opportunities for bond activation and catalysis. In this work, we explore the combination acidic Ir(III) cation [(η5-C5Me5)IrCl(PMe2ArDipp2)]+ (ArDipp2=C6H3−2,6-(C6H3−2,6-iPr2)2) with basic Pt(0) compound Pt(PtBu3)2. bulkiness phosphine ligands prevents formation a bimetallic adduct. We have explored coope...

In situ measurements of Brønsted acid sites (by titration with 2,6-di-tert-butyl-pyridine) and reduced centers (by UV–vis spectroscopy) were carried out on WOx–ZrO2 with catalysts at 2.9– 32.3 W/nm2 in order to probe how these species form and act as active sites during 2-butanol dehydration. The rate of 2-butanol dehydration (per W-atom) on WOx–ZrO2 reached maximum values at intermediate WOx s...