Preparation and crystal structures of dicesium berkelium hexachloride and dicesium sodium berkelium hexachloride

Chapter Ten Berkelium

As was the case for the previously discovered transuranium elements, element 97 was first produced via a nuclear bombardment reaction. In December 1949 ion‐exchange separation of the products formed by the bombardment of Am with accelerated alpha particles provided a new electron‐capture activity eluting just ahead of curium (Thompson et al., 1950a,b). This activity was assigned to an isotope (...

Bhc (benzene Hexachloride) Formulations

Experience in Queensland has shown that when crude BHC is refined to yield products containing higher proportions of the gamma isomer, the insecticidal persistence of the BHC in soil is decreased. This process also diminishes the specific toxicity of BHC to the soldier fly pest, Alfe~nzetopon.ia rubriceps (Macq.). I t also decreases the potential phytotoxicity, since less total BHC is required ...

Crystal structure of dicesium hydrogen citrate from laboratory single-crystal and powder X-ray diffraction data and DFT comparison

The crystal structure of dicesium hydrogen citrate, 2Cs+·C6H6O72-, has been solved using laboratory X-ray single-crystal diffraction data, refined using laboratory powder X-ray data, and optimized using density functional techniques. The Cs+ cation is nine-coordinate, with a bond-valence sum of 0.92 valence units. The CsO9 coordination polyhedra share edges and corners to form a three-dimension...

Benzene hexachloride poisoning; report of a case with recovery.

exploring motivation and english test preparation strategies of iranian pre-university candidates during and at the end of test preparation period for konkur examination

the current study aimed at investigating the relationship between motivation and test preparation strategies (tpss) used by iranian pre-university students in their preparation period for the university entrance exam (uee). due to the importance of uee in iran, this study also attempted to show its impact on these two important variables. to this end, 100 pre-university students in an iranian p...