期刊
INORGANIC CHEMISTRY
卷 58, 期 11, 页码 7243-7254出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.inorgchem.9b00255
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资金
- U.S. Department of Energy (DOE) - Chemical Sciences, Geosciences and Biosciences Division, Office of Science, Office of Basic Energy Sciences, Heavy Elements Program [DE-FG02-05ER15736]
Six new uranyl hybrid materials have been synthesized solvothermally utilizing the ligands 2,2'-bipyridine-3,3'-dicarboxylic acid (H2L) and 2,2':6',2''-terpyridine (TPY). The six compounds are classified as either molecular complexes (I0O0 connectivity), [(UO2)(L)(TPY)]center dot H2O (1), [Ni(TPY)(2)][(UO2)(L)(2)]center dot 3H(2)O (2), and [Cu(TPY)(2)][(UO2)(L)(2)]center dot 3H(2)O (3), or 3D metal-organic frameworks (MOFs, I0O(3) connectivity), [Cu-2(UO2)(2)(OH)(C2H3O2)(L)(3)(TPY)(2)]center dot 6H(2)O (4), [Zn-2(UO2)(2)(OH)(NO3)(C2H3O2)(L)(3)(TPY)(2)]center dot 4H(2)O (5), and Na[Ni(UO2)(3)(OH)(O)(L)(3)]center dot 9H(2)O (6). A discussion of the influence of transition metal incorporation, chelating effects of the ligand, and synthesis conditions on the formation of uranyl materials is presented. The structure of compound 6 is of particular note due to large channel-like voids with a diameter of approximately 19.6 angstrom. A topological analysis of 6 reveals a new topology with a 9-nodal 3,3,3,3,3,3,3,4,5-connected network, designated geg1 hereafter. Further, solid state photoluminescence experiments show emission and lifetimes values consistent with related uranyl compounds.
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