A high temperature and high pressure method was used to efficiently and selectively extract metallofullerenes Ln m @C 2n (Ln=Y, Gd, Tb) in a closed stainless steel autoclave under inert gas protection. 1,2,3 Trichloro...A high temperature and high pressure method was used to efficiently and selectively extract metallofullerenes Ln m @C 2n (Ln=Y, Gd, Tb) in a closed stainless steel autoclave under inert gas protection. 1,2,3 Trichlorobenzene was found to be more effective and selective for the extraction of Ln@C 82 (Ln=Y, Gd, Tb) from empty fullerenes and other metallofullerene species.展开更多
Sm@C 82 (Ⅲ) was effectively extracted by the high temperature DMF extraction and separated in one step HPLC, making the further studies of its properties possible. The successful purification of Sm metallofullerene w...Sm@C 82 (Ⅲ) was effectively extracted by the high temperature DMF extraction and separated in one step HPLC, making the further studies of its properties possible. The successful purification of Sm metallofullerene with such a low yield indicates that the high temperature DMF extraction is much effective. The cyclic and differential pulse voltammgrams of the pure Sm@C 82 (Ⅲ) were first measured, indicating that it has a good electron accepted ability. Up to 6 electrons can be added to them. The analysis of the potentials, the potential differential and the number of electron transferred show that Sm prefers to take +2 charge state in the carbon cage. The study of electronic structure would help us to produce, extract more metallofullerenes and synthesize useful materials.展开更多
Three water-soluble metallofullerene derivatives have been synthesized. IR and XPS analysis indicate that they have average compositions of Gd@C 82(OH) 22, Gd@C 82(OH) 6 (NHCH 2CH 2SO 3H) 8 and Gd@C 82(OH) 5(NHCH 2COO...Three water-soluble metallofullerene derivatives have been synthesized. IR and XPS analysis indicate that they have average compositions of Gd@C 82(OH) 22, Gd@C 82(OH) 6 (NHCH 2CH 2SO 3H) 8 and Gd@C 82(OH) 5(NHCH 2COOH) 9, respectively. They are particularly interesting in medical application.展开更多
文摘A high temperature and high pressure method was used to efficiently and selectively extract metallofullerenes Ln m @C 2n (Ln=Y, Gd, Tb) in a closed stainless steel autoclave under inert gas protection. 1,2,3 Trichlorobenzene was found to be more effective and selective for the extraction of Ln@C 82 (Ln=Y, Gd, Tb) from empty fullerenes and other metallofullerene species.
文摘Sm@C 82 (Ⅲ) was effectively extracted by the high temperature DMF extraction and separated in one step HPLC, making the further studies of its properties possible. The successful purification of Sm metallofullerene with such a low yield indicates that the high temperature DMF extraction is much effective. The cyclic and differential pulse voltammgrams of the pure Sm@C 82 (Ⅲ) were first measured, indicating that it has a good electron accepted ability. Up to 6 electrons can be added to them. The analysis of the potentials, the potential differential and the number of electron transferred show that Sm prefers to take +2 charge state in the carbon cage. The study of electronic structure would help us to produce, extract more metallofullerenes and synthesize useful materials.
文摘Three water-soluble metallofullerene derivatives have been synthesized. IR and XPS analysis indicate that they have average compositions of Gd@C 82(OH) 22, Gd@C 82(OH) 6 (NHCH 2CH 2SO 3H) 8 and Gd@C 82(OH) 5(NHCH 2COOH) 9, respectively. They are particularly interesting in medical application.
