It has first been reported that Tb(Ⅲ)is oxidated by K<sub>2</sub>S<sub>2</sub>O<sub>8</sub> in the heteropoly-tungstophosphate complex.The complex ion,[Tb(Ⅳ)(PW<s
Surface enhanced Raman scattering of water adsorbed at silverelectrodes in very negative potential region was first observed and asimple model related to the ad
Euchrcnonc a<sub>7</sub> has been prcparcd by condensation of 2-hydroxy-4-mcthoxy-3-prcnylacctophcnone with 2,4-dimethoxymethoxybenzaldehyde followed by cycliza