Metallocene and ansa-metallocene complexes of group 3 metals and the Lanthanides have shown to be effective catalysts for a number of chemical reactions. These include alkene polymerization, hydrosilation, hydroboration, hydrogenation and hydroamination. The coordinatively unsaturated, monomeric permethylyttrocene complexes in particular have proven to be highly effective for carrying out these...

A literature-based taxonomic catalogue of the nemertean species (Phylum Nemertea) reported from Japanese waters is provided, listing 19 families, 45 genera, and 120 species as valid. Applications of the following species names to forms previously recorded from Japanese waters are regarded as uncertain: Amphiporus cervicalis, Amphiporus depressus, Amphiporus lactifloreus, Cephalothrix filiformis...

Pacificulla Park, gen. nov. related to Crocanthes Meyrick is described from New Guinea, based on the type species P. flaviagra Park, sp. nov. Five additional species are described: P. esdiparki Park, sp. nov., P. searsi Park, sp. nov., P. callisomata Park, sp. nov., P. cervicalis Park, sp. nov., and P. kekamatana Park, sp. nov. The following six new combinations are proposed, the species of whi...

The copolymerization of bio-renewable β-myrcene or β-farnesene with styrene was examined using an ansa-neodymocene catalyst, affording two series of copolymers with high styrene content and unprecedented syndioregularity of the polystyrene sequences. The incorporation of terpene in the copolymers ranged from 5.6 to 30.8 mol % (β-myrcene) and from 2.5 to 9.8 mol % (β-farnesene), respectively. NM...

We studied the effects of cardiac sympathetic stimulation and ablation on characteristics of the anodal-strength interval curve in 10 pentobarbital-anesthetized open-cbest dogs. We gave special attention to (he form and particularly the depth of early dips of the anodal strength-interval curve. When the central connections of the cardiac sympathetic nerves were intact, left stellate stimulation...

Unsaturated bridges that link the two cyclopentadienyl ligands together in strained ansa metallocenes are rare and limited to carbon-carbon double bonds. The synthesis and isolation of a strained ferrocenophane containing an unsaturated two-boron bridge, isoelectronic with a C=C double bond, was achieved by reduction of a carbene-stabilized 1,1'-bis(dihaloboryl)ferrocene. A combination of spect...