Banerjee, Debasis Kim, Sun Jin Li, Wei Wu, Haohan Li, Jing Borkowski, Lauren A. Philips, Brian L. Parise, John B. 2024-01-20T19:04:19Z 2024-01-20T19:04:19Z 2021-09-02 2010-06 1528-7483 https://pubs.kist.re.kr/handle/201004/131402 A 3-D lithium based metal organic framework Li-2(C7H3NO4)center dot(C3H7NO) [Li-2(2,5-PDC)center dot(DMF), 1; ULMOF-5, UL = ultrolight, PDC = pyridinedicarboxylate, space group Pbcn, a = 15.800(3) angstrom, b = 8.5958(17) angstrom, c = 18.460(4) angstrom, V = 2507.1(9) angstrom(3)] was synthesized using the solvothermal method and characterized by single crystal and powder X-ray diffraction techniques. Compound 1 contains tetrameric edge and corner sharing lithium polyhedral clusters connected by organic linkers, forming channels along the [001] direction, with coordinated DMF molecules pointing toward each other in these channels. Thermogravimetric analysis shows compound 1 is stable up to 280 degrees C under N-2 atmosphere followed by removal of the coordinated DMF molecules, as evident from the associated weight loss. BET (25.06 m(2)/g) surface area measurement showed loss of porosity after solvent removal because of a structure change. Solid-state Li-6 NMR on the desolvated compound showed the absence of tricoordinated lithium centers, indicating rearrangement of bonds around the lithium center after DMF removal. The desolvated form reverts to the original form upon exposure to DMF, showing dynamic structural behavior. English American Chemical Society MN2+ COORDINATION SITES HYDROGEN STORAGE GAS-ADSORPTION SINGLE-CRYSTAL SORPTION POLYMERS MOF TRANSFORMATION TEMPERATURE CATALYSIS Synthesis and Structural Characterization of a 3-D Lithium Based Metal-Organic Framework Showing Dynamic Structural Behavior Article 10.1021/cg100449z 1 Crystal Growth & Design, v.10, no.6, pp.2801 - 2805 Crystal Growth & Design 10 6 2801 2805 scie scopus 000278147900052 2-s2.0-77953165916 Chemistry, Multidisciplinary Crystallography Materials Science, Multidisciplinary Chemistry Crystallography Materials Science Article MN2+ COORDINATION SITES HYDROGEN STORAGE GAS-ADSORPTION SINGLE-CRYSTAL SORPTION POLYMERS MOF TRANSFORMATION TEMPERATURE CATALYSIS Lithium Metal Organic Frameworks Ultralight-MOF Li-NMR ULMOF-5