A chiral supramolecular compound （H3O）{[cis-Rh2（（C6H5）2P（C6H4））2（SO4）- （DMF）]2（μ- OC2H5）}·6C2H5OH （1） has been synthesized and characterized by X-ray single-crystal analysis. Compound 1 crystalli...A chiral supramolecular compound （H3O）{[cis-Rh2（（C6H5）2P（C6H4））2（SO4）- （DMF）]2（μ- OC2H5）}·6C2H5OH （1） has been synthesized and characterized by X-ray single-crystal analysis. Compound 1 crystallizes in monoclinic, space group C2/c with a = 26.752（3）, b = 13.5868（16）, c = 26.611（3） A, β = 103.891（2）°, V= 9389.5（19）A^3, Z = 4, C92H114N2O18P4Rh4, Mr = 2135.49, Dc = 1.511 g/cm^3, F（000） = 4384 and μ（MoKa） = 0.870 mm^-1. The final R = 0.0441 and wR = 0.1186 for 8283 observed reflections with I 〉 2σ（I） and R = 0.0567 and wR = 0.1290 for all data. The structure of the compound is unique. It contains two inherent chiral {c/s-Rh2[（C6H5）2P（C6H4）]2}^2＋ units which are connected not only in the equatorial positions by two sulfato ligands, but also in two of their axial positions by a μ2 ethoxide anion. The remaining axial positions of Rh2^4＋ units in 1 are occupied by the DMF molecules. The sulfato ligands act as P4 tridentate bridges to connect the Rh2^4＋ units. The Rh-Rh metal-metal bond distances are comparable to those in analogous dirhodium compounds.展开更多
A supramolecular nanoparticle that realized the loading and sustained release of ATP was successfully constructed from sulfato-b-cyclodextrin（SCD） and polyethylenimine（PEI）. The assembly and disassembly behaviors ...A supramolecular nanoparticle that realized the loading and sustained release of ATP was successfully constructed from sulfato-b-cyclodextrin（SCD） and polyethylenimine（PEI）. The assembly and disassembly behaviors of supramolecular nanoparticle were investigated by means of Tyndall effect,UV–vis spectroscopy, dynamic light scattering（DLS）, zeta potential and transmission electron microscopy（TEM）. Significantly, the resulting nanoparticle was disrupted with the increasing of p H and recovered to the spherical nanoparticle as the p H decreased to initial value. Owing to the positive zeta potential, the supramolecular nanoparticle showed the good loading and sustained release abilities towards ATP.展开更多
基金supported by the National Natural Science Foundation of China (No. 20973173)
文摘A chiral supramolecular compound （H3O）{[cis-Rh2（（C6H5）2P（C6H4））2（SO4）- （DMF）]2（μ- OC2H5）}·6C2H5OH （1） has been synthesized and characterized by X-ray single-crystal analysis. Compound 1 crystallizes in monoclinic, space group C2/c with a = 26.752（3）, b = 13.5868（16）, c = 26.611（3） A, β = 103.891（2）°, V= 9389.5（19）A^3, Z = 4, C92H114N2O18P4Rh4, Mr = 2135.49, Dc = 1.511 g/cm^3, F（000） = 4384 and μ（MoKa） = 0.870 mm^-1. The final R = 0.0441 and wR = 0.1186 for 8283 observed reflections with I 〉 2σ（I） and R = 0.0567 and wR = 0.1290 for all data. The structure of the compound is unique. It contains two inherent chiral {c/s-Rh2[（C6H5）2P（C6H4）]2}^2＋ units which are connected not only in the equatorial positions by two sulfato ligands, but also in two of their axial positions by a μ2 ethoxide anion. The remaining axial positions of Rh2^4＋ units in 1 are occupied by the DMF molecules. The sulfato ligands act as P4 tridentate bridges to connect the Rh2^4＋ units. The Rh-Rh metal-metal bond distances are comparable to those in analogous dirhodium compounds.
基金the National Natural Science Foundation of China (Nos. 21432004, 21672113, 21772099 and 91527301) for financial support
文摘A supramolecular nanoparticle that realized the loading and sustained release of ATP was successfully constructed from sulfato-b-cyclodextrin（SCD） and polyethylenimine（PEI）. The assembly and disassembly behaviors of supramolecular nanoparticle were investigated by means of Tyndall effect,UV–vis spectroscopy, dynamic light scattering（DLS）, zeta potential and transmission electron microscopy（TEM）. Significantly, the resulting nanoparticle was disrupted with the increasing of p H and recovered to the spherical nanoparticle as the p H decreased to initial value. Owing to the positive zeta potential, the supramolecular nanoparticle showed the good loading and sustained release abilities towards ATP.
