The electronic and steric properties of tailored cyclopentadienyl (Cp) ligands are powerful handles to modulate the catalytic properties of their metal complexes. This requires the individual preparation, purification and storage of each ligand/metal combination. Alternative, ideally in situ, complexation protocols would be of high utility. We disclose a new approach to access Cp metal complexe...

The title compound, C26H23BN2O2, was obtained as by product during synthetic attempts of a complexation reaction between the tripodal ligand H2L [N,N-bis-(2-hy-droxy-benz-yl)(pyridin-2-yl)methyl-amine] and manganese(III) acetate in the presence of NaBPh4. The isolated B-phenyl dioxaza-borocine contains an N→B dative bond with a cis conformation. In the crystal, C-H⋯O hydrogen bonds define chain...

This paper describes the separation of two of the most widely used explosive compounds, RDX (1,3,5-Trinitro-1,3, 5-triazacyclohexane) and HMX (1,3,5,7-tetranitro-1,3,5,7tetraazacyclooctane). A simple antisolvent phase separation process to obtain >99% pure RDX from an explosive mixture consisting of RDX (≈90%) and HMX (≈10%) was developed. The process does not require modifications to the exist...

The first fluorine-containing cryptand F3-T R EN 4 for the complexation of anions was p re ­ pared in the 3 + 2-condensation reaction of 2-fluoro-l,3-phthalaldehyde 3 with tris(2-aminoethyl)am ine and subsequent reduction w ith N aB H 4. U pon incorporation of anionic guests 4 -6 H C 1 0 4 experiences shifts of its 19F N M R resonances and thus dem onstrates the advantages of studying h o s t-g...

The synthesis of a new phenolphthalein azide derivative, which can be easily utilized in polymer analogous reactions, is presented. The subsequent cycloaddition reaction with propargyl-functionalized methoxypoly(ethylene glycol) yielded polymers bearing phenolphthalein as the covalently attached end group. In presence of per-β-cyclodextrin-dipentaerythritol, the formation of stable inclusion co...

The Click-to-Chelate approach is a highly efficient strategy for the radiolabeling of molecules of medicinal interest with technetium and rhenium-tricarbonyl cores. Reaction of azide-functionalized molecules with alkyne prochelators by the Cu(I)-catalyzed azide-alkyne cycloaddition (CuAAC; click reaction) enables the simultaneous synthesis and conjugation of tridentate chelating systems for the...

Nitrogen (N)-doped carbon and its non-noble metal composite replacing platinum-based oxygen reduction reaction (ORR) electrocatalysts still have some fundamental problems that remain. Here the micron-sized commercial polyacrylonitrile-based carbon fiber (PAN-CF) electrode was modified using an electrochemical method, converting its inherent pyridinic-N into 2-pyridone (or 2-hydroxyl pyridine) f...

The introduction of the combination of open metal site (OMS) and π-complexation into MOF has led to very high ethylene-ethane adsorption selectivity at 318 K, as illustrated in the context of MIL-101-Cr-SO3Ag. The interactions with ethylene from both OMS and π-complexation in MIL-101-Cr-SO3Ag have been investigated by in situ IR spectroscopic studies and computational calculations, which sugges...

In this paper, a multiple configurational time-dependent self-consistent field (TDSCF) approach for studying photodissociation and reaction dynamics is described. This approach has been applied to studies of several benchmark systems and is found to provide an accurate description of the reactions. The focus of the present work is on investigations of processes in cluster environments. Specific...