pH-Dependent Assembly of Molecular Capsule,2D and 3D Coordination Polymers |
| |
| Authors: | LIN Rong-Guang |
| |
| Institution: | Department of Biology and Chemistry Engineering, FuqingBranch of Fujian Normal University, Fuqing, Fujian 350300, China／State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China |
| |
| Abstract: | Three lanthanum/4-sulfocalix4]arene complexes,namely,H2(H4CAS)La(H2O)7]2· H2(H4CAS)La(H2O)7]2·2C2H5OH·12H2O(1),H(H4CAS)La(H2O)5]·5H2O(2)and (H4CAS)La-(H2O)4(NO3)La(H2O)5]·7H2O(3),have been synthesized at different pH conditions.Complex 1,which exhibits the structure of "molecular capsule" containing the guest of C2H5OH molecule,is formed at pH = 1.At pH = 2～3,a two-dimensional(2D)coordination polymer of 2 is formed.Further increase of the pH value to 5 leads to the three-dimensional(3D)coordination polymer of 3.Crystal data for 1:monoclinic,space group P21/n,a = 10.8743(16),b = 25.957(4),c = 15.863(2),β = 94.763(2)°,V = 4462.1(11)3,Mr = 1160.87,Z = 4,F(000)= 2376,R = 0.0370 and wR = 0.0936;Crystal data for 2:tetragonal,space group P4/n,a = 11.6593(16),c = 14.069(4),V = 1912.5(6)3,Mr = 1114.81,Z = 2,F(000)= 1136,R = 0.0849 and wR = 0.1906;and those for 3:triclinic,space group P1,a = 10.4588(16),b = 14.995(2),c = 16.699(3),α = 65.446(3),β = 83.487(3),γ = 73.305(3)°,V = 2281.6(6)3,Mr = 1367.76,Z = 2,F(000)= 1368,R = 0.0423 and wR = 0.1183. |
| |
| Keywords: | 4-sulfocalix[4]arene pH-dependent crystal structures |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
