The crystal structure of a novel Eu^(3+) coordination polymer, {[Eu(m-BDC)(NO_3)(Phen)(H_2O)]_2·2CH_3CH_2OH}_n (m-BDC=1,3-benzenedicarboxylate, Phen=1, 10-phenanthroline), was obtained and its high-resolution lum...The crystal structure of a novel Eu^(3+) coordination polymer, {[Eu(m-BDC)(NO_3)(Phen)(H_2O)]_2·2CH_3CH_2OH}_n (m-BDC=1,3-benzenedicarboxylate, Phen=1, 10-phenanthroline), was obtained and its high-resolution luminescence spectra at 77K were measured. The μ_2-carboxylate of m-BDC constructs the binuclear building block in which each Eu^(3+) ion is coordinated by four oxygen atoms of m-BDC anions, one oxygen atom from water molecule, two oxygen atoms of nitrate and two nitrogen atoms of Phen, respectively. The μ_1-carboxylate of m-BDC conjugates the binuclear units one-dimensional chain or a ribbon, while the hydrogen bonds between ribbons assemble the structure two-dimensional layer with a thickness equaling to the width of the ribbon. The luminescence spectra reveal that the two Eu^(3+) ion sites in the binuclear building blocks have slight environmental difference. The C_1 local symmetry of Eu^(3+) ion is concluded from both crystal structure measurement and luminescence spectra.展开更多
Dodecylbenzenesulfonate (DBS)-capped TiO2 nanoparticles have been synthesized and employed in dye-sensitized solar cells to form a quasi-solid state electrolyte. Owing to the long alkyl-chain capping around the TiO2 n...Dodecylbenzenesulfonate (DBS)-capped TiO2 nanoparticles have been synthesized and employed in dye-sensitized solar cells to form a quasi-solid state electrolyte. Owing to the long alkyl-chain capping around the TiO2 nanoparticles interacting with the liquid solvent, the dye sensitized solar cell based on such DBS-capped TiO2 nanoparticle framework material gel electrolyte shows higher stability compared with the non-capped one in the long-term application and gives a comparable overall efficiency of 6.3% at AM 1.5 illumination.展开更多
基金supported by the National Natural Science Foundation of China(21371138)the Funds for Creative Research Groups of Hubei Province,China(2014CFA007)the Fundamental Research Funds for the Central Universities,China(2042015kf0180)~~
文摘The crystal structure of a novel Eu^(3+) coordination polymer, {[Eu(m-BDC)(NO_3)(Phen)(H_2O)]_2·2CH_3CH_2OH}_n (m-BDC=1,3-benzenedicarboxylate, Phen=1, 10-phenanthroline), was obtained and its high-resolution luminescence spectra at 77K were measured. The μ_2-carboxylate of m-BDC constructs the binuclear building block in which each Eu^(3+) ion is coordinated by four oxygen atoms of m-BDC anions, one oxygen atom from water molecule, two oxygen atoms of nitrate and two nitrogen atoms of Phen, respectively. The μ_1-carboxylate of m-BDC conjugates the binuclear units one-dimensional chain or a ribbon, while the hydrogen bonds between ribbons assemble the structure two-dimensional layer with a thickness equaling to the width of the ribbon. The luminescence spectra reveal that the two Eu^(3+) ion sites in the binuclear building blocks have slight environmental difference. The C_1 local symmetry of Eu^(3+) ion is concluded from both crystal structure measurement and luminescence spectra.
基金Project supported by the State Key Program of Fundamental Research (No. G1998061308) the National High Technology Research Development Plan of China (Nos. 2002 AA 302403 and 0216nm040) and the National Natural Science Foundation of China (No. 20221101)
文摘Dodecylbenzenesulfonate (DBS)-capped TiO2 nanoparticles have been synthesized and employed in dye-sensitized solar cells to form a quasi-solid state electrolyte. Owing to the long alkyl-chain capping around the TiO2 nanoparticles interacting with the liquid solvent, the dye sensitized solar cell based on such DBS-capped TiO2 nanoparticle framework material gel electrolyte shows higher stability compared with the non-capped one in the long-term application and gives a comparable overall efficiency of 6.3% at AM 1.5 illumination.
