期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
Synthesis and Structural Characterization of a New Polyoxovanadium Borate: (H_3NCH_2CH_2NH_3)_4[(VO)_6(B_(10)O_(22))_2]·(H_3O)_7 被引量:1
1
作者 曹彦宁 张汉辉 +4 位作者 黄长沧 孙玉希 陈义平 郭文军 张凤利 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 北大核心 2005年第5期525-530,490,共7页
The title compound (H3NCH2CH2NH3)4[(VO)6(B10O22)2]·(H3O)7 1 has been synthe- sized by the hydrothermal method and determined by X-ray crystallography. Crystallographic data: monoclinic, space group C2/c, a = 20.2... The title compound (H3NCH2CH2NH3)4[(VO)6(B10O22)2]·(H3O)7 1 has been synthe- sized by the hydrothermal method and determined by X-ray crystallography. Crystallographic data: monoclinic, space group C2/c, a = 20.250(4), b = 13.448(3), c = 21.655(4) ?, β = 97.05(3)°, Mr = 851.74 (C4H30.5B10N4O28.5V3), V = 5852(2) ?3, Z = 8, Dc = 1.933 g/cm3, μ = 1.057 mm-1, F(000) = 3436, R = 0.0500 and wR = 0.1442 for 4511 observed reflections with I > 2σ(I). The structure con- sists of [(VO)6(B10O22)2]15- cluster anions that have a central band of six trans-edge-sharing VO5 square pyramids capped by two [B10O22]14- polyborate ligands. Other characterizations are also describ- ed by elemental analysis, IR spectrum and thermal analysis. 展开更多
关键词 polyoxovanadium borate hydrothermal synthesis crystal structure
下载PDF
A Porous Organic-inorganic Hybrid Compound Constructed from Polyoxovanadium Borate Anions,Dinuclear Na Sites and Metal-organic Units
2
作者 李光满 梅洪鑫 +4 位作者 陈祥奕 陈义平 孙燕琼 张汉辉 陈小平 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2011年第6期785-792,共8页
A polyoxovanadium borate [Na(H2O)]2[Na(H2O)2]2[Cu(en)2][V12B18O54(OH)6]·(H3O)2·(H2O)18 1(en = ethylenediamine) has been hydrothermally synthesized and characterized by IR,two-dimensional infra... A polyoxovanadium borate [Na(H2O)]2[Na(H2O)2]2[Cu(en)2][V12B18O54(OH)6]·(H3O)2·(H2O)18 1(en = ethylenediamine) has been hydrothermally synthesized and characterized by IR,two-dimensional infrared(2D IR) correlation spectroscopy with magnetic and thermal perturba-tion,thermal IR spectroscopy,thermal gravimetric analysis and single-crystal X-ray diffraction.It crystallizes in triclinic,space group P with a = 12.981(3),b = 13.044(3),c = 14.208(3) ,α = 63.98(3),β = 77.17(3),γ = 14.208(3)°,V = 2001.0(8) 3,Z = 1,Mr = 2518.05,Dc = 2.090 g/cm-1,F(000) = 1255.0,Mu(mm-1) = 1.756,λ(MoKα) = 0.71073 ,R = 0.0625 and wR = 0.1952.In 1,the [V12B18O54(OH)6]8- units are connected by [Cu(en)2]2+,binuclear Na(1) and Na(2) to form a three-dimensional porous framework. 展开更多
关键词 organic-inorganic hybrid porous framework polyoxovanadium borate 2D IR correlation spectroscopy thermal IR spectroscopy
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部