摘要
In our efforts to construct new metal-organic frameworks (MOFs) by template-directing method, a new cadmium oxalate, [Co(NH3)612[Cds(C204)ll(H20)4].8H20 (denoted HNU-1 ), has been synthesized under hydrothermal condition in the presence of C0(NH3)6C13, The crystal structure of HNU-1 was determined by single-crystal X-ray diffraction (monoclinic, C2/c), a = 11.126(2)A, b = 17.361 (4),A, c = 16.119(3)A, fi = 102.40(3), V = 3040.8(10) A and Z = 8. The open framework of HNU-1 contains 12-ring channels and exhibits a 5-connected sqp topological network with dinuclear Cd(ll) clusters acting as nodes. The Co(NH3)63+ cations and unusual hydrogen-bonded (H20)4 clusters are found in the 12-ring channels with an alternative arrangement. It is believed that the (H20)4 clusters play a co-templating role in the crystallization of HNU-1.
In our efforts to construct new metal-organic frameworks (MOFs) by template-directing method, a new cadmium oxalate, [Co(NH3)612[Cds(C204)ll(H20)4].8H20 (denoted HNU-1 ), has been synthesized under hydrothermal condition in the presence of C0(NH3)6C13, The crystal structure of HNU-1 was determined by single-crystal X-ray diffraction (monoclinic, C2/c), a = 11.126(2)A, b = 17.361 (4),A, c = 16.119(3)A, fi = 102.40(3), V = 3040.8(10) A and Z = 8. The open framework of HNU-1 contains 12-ring channels and exhibits a 5-connected sqp topological network with dinuclear Cd(ll) clusters acting as nodes. The Co(NH3)63+ cations and unusual hydrogen-bonded (H20)4 clusters are found in the 12-ring channels with an alternative arrangement. It is believed that the (H20)4 clusters play a co-templating role in the crystallization of HNU-1.
基金
supported by the National Natural Science Foundation of China (No. 21101047)
the Program for New Century Excellent Talents in University (No. NCET-11-0929)
the Natural Science Foundation of Hainan Province (No. 211010)
the Priming Scientifc Research Foundation of Hainan University (No. kyqd1051)