Solvothermal Synthesis and Structural Characterization of Ultralight Metal Coordination Networks
- Solvothermal Synthesis and Structural Characterization of Ultralight Metal Coordination Networks
- D. Banerjee; 김선진; L. A. Borkowski; Wenqian Xu; J. B. parise
- MOF; Lithium; Ultralight Metal; Solvothermal
- Issue Date
- Crystal growth & design
- VOL 10, NO 2, 709-715
- Two lithium-based coordination polymers and a framework Li3(C7H3O4N)2· 0.21(H2O) (C2H8N) ; ULCP-1
(ULCP=ultralight coordination polymer); Li3(C7H3O4N)·(C6H3O2N) ; [ULCP-1A]; and Li2(C7H3O4N) ; ULMOF-4
(ULMOF=ultralight metal organic framework) were synthesized using solvothermal techniques. The compounds were
characterized using single-crystal X-ray diffraction methods and thermal analysis techniques. Compound  [space groupP21/c,
a=11.51(2) Å, b=15.33(3) Å, c=10.93(2) Å, β=99.98(3)°] consists of trimeric corner- and edge-sharing lithium tetrahedral
chains. Organic linkers connect each of these chains to form a two-dimensional (2-D) layered structure. Positively charged
dimethyl amine (DMA) molecules and sites partially occupied by water molecules are present between the layers. Compound 
[space group P21/c, a=10.190(2) Å, b=13.390(3) Å, c=10.450(2) Å, β=106.02(3)°] contains trimeric clusters of cornerand
edge-sharing lithium tetrahedra. Each of these clusters is connected by the organic linkers to form an overall 2-D structure.
Compound  [space group C2/c, a=12.692(2)Å, b=10.977(2)Å, c=11.200(2)Å, β=105.83(3)°] consists of edge- and corner
shared one-dimensional (1-D) chains of lithium tetrahedra. The lithium polyhedral chains are then connected by the organic
linkers to form a dense three-dimensional (3-D) network. All compounds are stable above 300 ℃ underN2 atmosphere, with 
stable to 550 ℃.
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