期刊文献+
共找到4篇文章
< 1 >
每页显示 20 50 100
Synthesis,Crystal Structure and Luminescence of a New Zn(Ⅱ) Complex [Zn(1,2,3-HBTC)(L)]_2 Constructed by Mixed Ligands 被引量:4
1
作者 WANG Xiu-Yan ZHAO Zhong-Yu +3 位作者 LIU Rui xu Ye LI Xin-Hang xu zhan-lin 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2015年第5期725-728,共4页
A new Zn(Ⅱ) complex,[Zn(1,2,3-HBTC)(L)]2(1,L = 2-(2-chloro-6-fluorophenyl)-1H-imidazo[4,5-f][1,10]phenanthroline and 1,2,3-H3 BTC = 1,2,3-benzentricarboxylic acid),was synthesized under hydrothermal conditi... A new Zn(Ⅱ) complex,[Zn(1,2,3-HBTC)(L)]2(1,L = 2-(2-chloro-6-fluorophenyl)-1H-imidazo[4,5-f][1,10]phenanthroline and 1,2,3-H3 BTC = 1,2,3-benzentricarboxylic acid),was synthesized under hydrothermal conditions and characterized by single-crystal X-ray diffraction.It crystallizes in triclinic,space group P1 with a = 10.455(2),b = 11.533(2),c = 12.499(3) A,α = 116.97(3),β = 94.08(3),γ = 103.29(3)o,V = 1280.2(4) A^3,Z = 1,C56H28Cl2F2N8O12Zn2,Mr = 1244.50,Dc = 1.614 g/cm^3,F(000) = 628,μ(Mo Ka) = 1.124 mm^-1,R = 0.0502 and w R = 0.1417.In compound 1,two 1,2,3-HBTC anions bridge two Zn(Ⅱ) atoms to give a dimeric structure with Zn···Zn distance of 3.15 A.Adjacent dimers interact through π-π stackings between two L ligands to result in a supramolecular layer.Moreover,N–H···O and O–H···N hydrogen bonds further stabilize the 2D supramolecular architecture of 1.In addition,the luminescent property of 1 has been studied. 展开更多
关键词 hydrogen bonds crystal structure DIMER 1 2 3-benzentricarboxylic acid
下载PDF
Crystal Structure, Thermal Behavior and Luminescence of a New Copper Coordination Polymer Constructed with 4-(Carboxymethoxy)-benzoic Acid 被引量:3
2
作者 WANG Xiu-Yan LI Guan-Ting +3 位作者 WANG Heng SONG Yu LIU Dong-xue xu zhan-lin 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2019年第4期629-634,共6页
A new Cu(Ⅱ) coordination polymer, [Cu(L1)(L2)](1), was synthesized under hydrothermal conditions(H_2L1 = 4-(carboxymethoxy)benzoic acid, L2 = 2-(4-fluorophenyl)-1 H-imidazo[4,5-f][1,10]phenanthroline). Crystallograph... A new Cu(Ⅱ) coordination polymer, [Cu(L1)(L2)](1), was synthesized under hydrothermal conditions(H_2L1 = 4-(carboxymethoxy)benzoic acid, L2 = 2-(4-fluorophenyl)-1 H-imidazo[4,5-f][1,10]phenanthroline). Crystallographic data for 1: triclinic, space group P1 with a = 9.750(5), b = 10.148(5), c = 12.869(5) ?, α = 104.904(5), β = 102.133(5), γ = 95.219(5)°, V = 1188.7(10) ?~3, Z = 2, C_(28)H_(17)FN_4O_5Cu, Mr = 572.01, D_c = 1.598 g/cm^3, F(000) = 582, μ(MoKa) = 0.977 mm^(-1), R = 0.0474 and w R = 0.1144. The TGA behaviors and luminescence of 1 have been studied in detail. The L1 dianions link neighboring Cu(Ⅱ) atoms in a bis-chelating mode, yielding a one-dimensional chain structure along the b axis. The L2 ligands are attached on one side of the chain through chelating the Cu(Ⅱ) atoms, and are stacked with those of an adjacent chain through π-π interactions, yielding a layer structure. Additionally, the N–H???O hydrogen bonds further stabilize the structure of 1. 展开更多
关键词 crystal structure COORDINATION polymer 4-(carboxymethoxy)benzoic acid copper(Ⅱ) LUMINESCENT property
下载PDF
A New Co(Ⅱ) Coordination Polymer Based on a Flexible 1,4-Cyclohexanedicarboxylic Acid: Synthesis, Structure and Thermal Behavior 被引量:2
3
作者 WANG Xiu-Yan LI Cong +3 位作者 ZOU Chun-Kai KAN Ruo-Fei ZHANG Xiao-xu xu zhan-lin 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2019年第12期2155-2160,共6页
A new Co(Ⅱ) coordination polymer, [Co(1,4-chdc)(L)(H2O)]n(1), was synthesized under hydrothermal condition(1,4-H2chdc = 1,4-cyclohexanedicarboxylic acid, L = 2-(4-fluoro-phenyl)-1 H-imidazo[4,5-f][1,10]p... A new Co(Ⅱ) coordination polymer, [Co(1,4-chdc)(L)(H2O)]n(1), was synthesized under hydrothermal condition(1,4-H2chdc = 1,4-cyclohexanedicarboxylic acid, L = 2-(4-fluoro-phenyl)-1 H-imidazo[4,5-f][1,10]phenanthroline). Its crystal structure was determined by single-crystal X-ray diffraction. 1 crystallizes in triclinic, space group P1 with a = 8.790(5), b = 10.486(5), c = 13.305(5) ?, α = 87.391(5), β = 82.925(5), γ = 81.841(5)o, V = 1204.2(10) ?3, Z = 2, C27H23FN4O5Co, Mr = 561.42, Dc = 1.548 g/cm3, F(000) = 578, μ(Mo Ka) = 0.769 mm-1, R = 0.0415 and wR = 0.1043. In 1, each 1,4-chdc anion bridges two neighboring Co(Ⅱ) atoms to give a chain structure. The L ligands are attached on one side of the chain through chelating the Co(Ⅱ) atoms, and are stacked with those of an adjacent chain through π-π interactions, yielding a double-chain structure. The double-chain structures are linked into a supramolecular layer structure through N–H···O hydrogen-bonding interactions between the adjacent double-chain structures. Moreover, the thermal behavior of 1 was also studied. 展开更多
关键词 cobalt coordination polymer 1 4-cyclohexanedicarboxylic acid π-πinteractions hydrogen bond thermal behavior
下载PDF
中低温固体氧化物燃料电池阴极材料研究进展 被引量:2
4
作者 徐娜 苏少辉 +3 位作者 滕茹煊 张继元 徐占林 齐诗慧 《吉林师范大学学报(自然科学版)》 2022年第4期108-115,共8页
固体氧化物燃料电池(SOFC)是一种以优异的能量转换效率而闻名的电化学技术.传统SOFC的应用受到其高温(800~1000℃)工作的限制,长期在高温下工作会导致电极材料性能衰减,因此,将其工作温度降到中低温,并提高电池的耐用性,成为SOFC研究的... 固体氧化物燃料电池(SOFC)是一种以优异的能量转换效率而闻名的电化学技术.传统SOFC的应用受到其高温(800~1000℃)工作的限制,长期在高温下工作会导致电极材料性能衰减,因此,将其工作温度降到中低温,并提高电池的耐用性,成为SOFC研究的主要关注点之一.但是,工作温度的降低会导致电极的极化损耗急剧增大,电池性能快速下降.电极的极化损耗主要来源于阴极的极化损耗,因此,在中低温减小阴极的极化损耗和提高阴极材料的性能成为关键.本文综述了近年来中低温SOFC阴极材料的研究进展,并总结了这些材料在中低温运行中存在的问题和未来的发展方向。 展开更多
关键词 锰氧化物 钴酸盐 铁氧体 阴极 固体氧化物燃料电池
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部