The binary and ternary rare earth terbium(Ⅲ) complexes were introduced into the styrene/ α methylacrylic acid copolymerization system, and some optical resins that possess a high transparency in visible light region...The binary and ternary rare earth terbium(Ⅲ) complexes were introduced into the styrene/ α methylacrylic acid copolymerization system, and some optical resins that possess a high transparency in visible light region were obtained. The study of the optical property showed that they have good luminescent properties such as a high luminous intensity and a long luminous lifetime. In addition, we investigated the relationship among the transparency, the luminescent property of the copolymer, and the content of the components in the polymeric system. The results indicated that the optical resins can provide a relatively stable environment for composite rare earth complexes, which is good to exhibit the luminescent properties of rare earth complexes. At the same time, the rare earth complexes can offer the transparent resin a novel function.展开更多
The extraction mechanism of rare earth elements from chloride medium with sec octylphenoxy acetic acid(CA 12) in n heptane has been studied. The results showed that CA 12 could be applied to separation of Y from light...The extraction mechanism of rare earth elements from chloride medium with sec octylphenoxy acetic acid(CA 12) in n heptane has been studied. The results showed that CA 12 could be applied to separation of Y from light rare earth mixture. The structures of the extracted complexes were deduced based on the IR measurements.展开更多
The effect of rare earth ion Er 3+ on myoglobin(Mb) was studied by using Resonance Raman spectroscopy. The results show that with the variation of Er 3+ concentrations, both the oxidation state and spin state of Mb ar...The effect of rare earth ion Er 3+ on myoglobin(Mb) was studied by using Resonance Raman spectroscopy. The results show that with the variation of Er 3+ concentrations, both the oxidation state and spin state of Mb are sensitive to the perturbation of Er 3+ . Er 3+ added to Mb affects the oxidation and spin state synchronously. The structure sensitive groups of Mb are more accessible to the Er 3+ than other groups. According to the fluorometry and CD spectra studied and our results as mentioned above, we considered that Er 3+ does not interact with heme directly, and Er 3+ probably leads to the conformational changes of Mb due to the change of oxidation and spin state of Heme. [WT5HZ]展开更多
文摘The binary and ternary rare earth terbium(Ⅲ) complexes were introduced into the styrene/ α methylacrylic acid copolymerization system, and some optical resins that possess a high transparency in visible light region were obtained. The study of the optical property showed that they have good luminescent properties such as a high luminous intensity and a long luminous lifetime. In addition, we investigated the relationship among the transparency, the luminescent property of the copolymer, and the content of the components in the polymeric system. The results indicated that the optical resins can provide a relatively stable environment for composite rare earth complexes, which is good to exhibit the luminescent properties of rare earth complexes. At the same time, the rare earth complexes can offer the transparent resin a novel function.
文摘The extraction mechanism of rare earth elements from chloride medium with sec octylphenoxy acetic acid(CA 12) in n heptane has been studied. The results showed that CA 12 could be applied to separation of Y from light rare earth mixture. The structures of the extracted complexes were deduced based on the IR measurements.
文摘The effect of rare earth ion Er 3+ on myoglobin(Mb) was studied by using Resonance Raman spectroscopy. The results show that with the variation of Er 3+ concentrations, both the oxidation state and spin state of Mb are sensitive to the perturbation of Er 3+ . Er 3+ added to Mb affects the oxidation and spin state synchronously. The structure sensitive groups of Mb are more accessible to the Er 3+ than other groups. According to the fluorometry and CD spectra studied and our results as mentioned above, we considered that Er 3+ does not interact with heme directly, and Er 3+ probably leads to the conformational changes of Mb due to the change of oxidation and spin state of Heme. [WT5HZ]
