期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
From Chain to Layer Structure: Zn^(II) Coordination Polymers Derived from Diphenic Acid 被引量:1
1
作者 王瑞虎 弓亚琼 +2 位作者 韩磊 袁大强 洪茂椿 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 北大核心 2005年第9期1007-1016,共10页
Three Zn^Ⅱ coordination polymers, [Zn(py)(H2O)(dpa)]n 1, [Zn2(4,4’-bipy)2(dpa)2]n 2 and [Zn(bpe)(H2O)2(Hdpa)2]n 3 (py=pyridine, H2dpa=diphenic acid, 4,4'-bipy-4,4'-bipyridine, bpe = 1,2-bis(4-pyr... Three Zn^Ⅱ coordination polymers, [Zn(py)(H2O)(dpa)]n 1, [Zn2(4,4’-bipy)2(dpa)2]n 2 and [Zn(bpe)(H2O)2(Hdpa)2]n 3 (py=pyridine, H2dpa=diphenic acid, 4,4'-bipy-4,4'-bipyridine, bpe = 1,2-bis(4-pyridyl)ethane), were synthesized and characterized by X-ray single-crystal structure determination. 1 crystallizes in monoclinic, space group C2/c with a = 23.014(3), b = 8.7184(13), c = 18.091(3)A° ,8 = 95.964(3)°, V=3610.2(9)A°^3, Z=8, C19H15NO5Zn, Mr=402.69, Dc=1.482 g/cm^3, F(000)=1648, μ(MoKa)=1.389 mm^-1 the final R=0.0431 and wR = 0.1120 for 4239 observed reflections with 1〉2σ(I). 2 crystallizes in orthorhombic, space group Fddd with a=23.1613(5), b=24.0324(6), c=29.4785(1)A°, V= 16408.4(5) A°3, Z=32, C24H16N2O4Zn, Mr=461.76, Dc=1.495 g/cm^3, F(000)=7552, μ(MoKa)=1.232 mm^-1, the final R=0.0542 and wR=0.1724 for 3632 observed reflections with 1〉2σ(I). 3 crystallizes in orthorhombic, space group C2/c with a=19.142(4), b = 13.862(3), c = 15.625(3) A°,β=122.404(3)°, V= 3500.3(11)A°^3, Z=8, C2oHiTNO5Zn0.50, Mr=384.03, Dc=1.457 g/cm^3,F(000)=1592,μ(MoKα)=0.766 mm^-1, the final R=0.0400 and wR=0.1210 for 4024 observed reflections with I 〉 2σ(I). 展开更多
关键词 diphenic acid ZINC coordination polymers crystal structure
下载PDF
A Chiral Helical Compound Based on Achiral Components
2
作者 ZHANG Qi-Wei WANG Gui-Xian 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 北大核心 2007年第5期551-554,共4页
The title compound, [Cu(dpa)(2,2'-bipy)(H2O)2]n 1 (H2dpa = diphenic acid and 2,2'- bipy = 2,2'-bipyridine), has been synthesized and its structure was determined by single-crystal X-ray diffraction. The cry... The title compound, [Cu(dpa)(2,2'-bipy)(H2O)2]n 1 (H2dpa = diphenic acid and 2,2'- bipy = 2,2'-bipyridine), has been synthesized and its structure was determined by single-crystal X-ray diffraction. The crystal is of orthorhombic, space group P212121 with a = 10.597(4), b = 11.317(4), c = 17.630(7)A, V = 2114.3(14)A^3, C24H20CuN2O6, Mr = 495.97, Z = 4, Dc = 1.558 g/cm^3, μ = 1.079 mm^-1, F(000) = 1020, Flack value = 0.052(18), R = 0.0430 and wR = 0.1016 for 3381 observed reflections (Ⅰ 〉 2σ(Ⅰ)). In compound 1, the dpa ligands link metal ions into helical structures in the same direction. 展开更多
关键词 crystal structure CHIRAL hydrogen bond diphenic acid HELIX
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部