(η<sup>-</sup>C<sub>H</sub><sub>5</sub>)<sub>2</sub>CeCl<sub>5</sub>Mg<sub>2</sub>(tmed)<sub>2</sub> was used as a catalyst to polymerizeisoprene,Terminal ends of
Sublimed D-,L-,and DL-leucine under vacuum were subjected to <sup>60</sup>Co γ-irradiation withdifferent doses.The enantiomeric compositions of samples were de
For the first time,fullerenes are applied to the study on the interface between twoimmisible electrolyte solutions.Experiments show they are a new kind of inhib
The present paper describes experiments aimed at delineating significant chemical characteristics of electrochemical reactions in polymeric solutions, including
A new skeleton taxane diterpene,taxayuntin,was isolated from the leaves and stems ofTaxus yunnanensis.Its structure was determined by spectroscopic methods(MS,<