A new diterpene lactone with an ent--kaurane skeleton, named antriptolactone(1)was isolated from the roots of Tripterygium wilfordii cellected in Anhui province
A systematic study of the structural and superconducting behavior of the high Tc compounds YBa<sub>1</sub>Cu<sub>1.9</sub>M<sub>0.1</sub>O<sub>7-y</sub> has bee
Here some steady-state experiments on oxidation of CO on Pd were performed on a molecular beam apparatus. It is found that the characteristics of the rate of CO
Two new minor steroidal saponins, (25R) spirostan-3β-ol-6-one-3-O-[α-L-arabinopyranosyl(1-4)]-β-D-glucopyranosidc (1) and (25S) spirost-5-en -3β, 17α, 27-t
A fluorescence enhancement phenomenon on adding terbium to the Eu or Sm-DBM-CTMAB-Triton X-100 fluorescence system was observed. The fluorescence intensity of t