Three lanthanum/4-sulfocalix[4]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) Å, b = 94.763(2)°, V = 4462.1(11) Å3, 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) Å, V = 1912.5(6) Å3, Mr = 1114.81, Z = 2, F(000) = 1136, R = 0.0849 and wR = 0.1906; and those for 3: triclinic, space group P -1, a = 10.4588(16), b = 14.995(2), c = 16.699(3) Å, a = 65.446(3),b = 83.487(3), g = 73.305(3)°, V = 2281.6(6) Å3, Mr = 1367.76, Z = 2, F(000) = 1368, R = 0.0423 and wR = 0.1183.
Three lanthanum/4-sulfocalix[4]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) Å, b = 94.763(2)°, V = 4462.1(11) Å3, 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) Å, V = 1912.5(6) Å3, Mr = 1114.81, Z = 2, F(000) = 1136, R = 0.0849 and wR = 0.1906; and those for 3: triclinic, space group P -1, a = 10.4588(16), b = 14.995(2), c = 16.699(3) Å, a = 65.446(3),b = 83.487(3), g = 73.305(3)°, V = 2281.6(6) Å3, Mr = 1367.76, Z = 2, F(000) = 1368, R = 0.0423 and wR = 0.1183.
林榕光. pH-Dependent Assembly of Molecular Capsule, 2D and 3D Coordination Polymers[J]. , 2011, 30(10): 1483-1492.
LIN Rong-Guang. pH-Dependent Assembly of Molecular Capsule, 2D and 3D Coordination Polymers. , 2011, 30(10): 1483-1492.
2011, Vol. 30 
