Kinetic experiments based on the measurement of nitrogen evolution in the reaction of ethyl diazoacetate (N2CHCO2Et, EDA) and styrene or methanol catalyzed by the [IPrAu](+) core (IPr = 1,3-bis(diisopropylphenyl)imidazole-2-ylidene) have provided evidence that the transfer of the carbene group CHCO2Et to the substrate (styrene or methanol) takes place in the coordination sphere of Au(I) by mean...

The title compound, [Mn(C(18)H(12)N(4)O(2))(C(4)H(6)N(2))(2)], belongs to the family of 1,2-bis-(pyridine-2-carboxamido)benzene (H(2)bpb) ligated metal complexes. The manganese center is octa-hedrally coordinated by a bpb ligand and two axial 1-methyl-imidazole mol-ecules. The axial N-Mn-N group is bent with a bond angle of 151.79 (7)°.

A library of enriched marine natural product fractions was screened for their antiplasmodial activity using a SYBR green I fluorescence-based assay. Fractions derived from a sponge of the genus Spongosorites exhibited potent inhibition of Plasmodium falciparum growth. This genus of sponge has been reported to contain the nortopsentin and topsentin class of bis-indole imidazole alkaloids. This i...

Silica nanoparticles linked through ionic liquid-like molecules are synthesized by two routes. The first approach utilized a bis(trialkoxysilyl)-substituted imidazolium iodide to link the silica nanoparticles. In the second approach, the silica nanoparticles were first modified by 3-chloropropyltrimethoxysilane and N-(3-trimethoxysilylpropyl)imidazole and then coupled through nucleophilic subst...