Synthesis, structures, and properties of alkali and alkaline earth coordination polymers based on V-shaped ligand

Abstract

A series of metal coordination polymers, [Li 2 (OBA)] (1), [Na 2 (OBA) 7), and [Sr(OBA)(H 2 O)] (8) (H 2 OBA = 4,49-oxybisbenzoic acid), was synthesized from alkali and alkaline-earth metal salts and 4,49-oxybisbenzoic acid by solvothermal reactions. Single crystal X-ray structure analysis revealed that compounds 1-5 and 7-8 are three-dimensional while complex 6 has a layered structure. The inorganic motifs, ranging from discrete octahedra (6), edge-sharing octahedral dimers ( 7), and straight one-dimensional inorganic chains (1 and 8) to two-dimensional inorganic layers (2-5), are connected through organic linkers and thus form neutral networks. High thermal stabilities were observed for compounds 1, 2, 6, 7, and 8 up to approximately 500 uC. Electrochemical measurements of 1 revealed a stabilized reversible capacity of approximately 100 mAh g 21 after more than 30 charge/discharge cycles.

Synthesis, Crystal Structure, and Luminescence Properties of a New Calcium(II) Coordination Polymer Based on L‐Malic Acid

“…The TGA and PXRD results revealed that the complex can retain its original framework structure up to 350 ∘ C. It is also to be noted that the complex exhibited promising photoluminescence properties. The observed results are very much comparable with our previous report [40].…”

Synthesis, Structures and Electrochemical Properties of Lithium 1,3,5-Benzenetricarboxylate Complexes

“…During the first cycle, the rapid decrease in charge/ discharge capacities of complex 3 and complex 4 might be due to the irreversible electrochemical nature of the lithium complexes, which is quite common for lithium-containing compounds. These results reveal that both lithium coordination polymers have active electrochemical properties and display similar capacity, in comparison to previously reported studies where they ranged from about 100 to 600 mAhg −1 [33,34,35,36,37,38,39,40,41,42,43,44].…”

“…There have been few studies on lithium CPs with interesting electrochemical behaviors that could be used as electrodes in lithium ion batteries [33,34,35,36,37,38,39,40,41,42,43,44]. For the first time, two CPs of lithium terephthalate (Li 2 C 8 H 4 O 4 ) and lithium trans – trans –muconate (Li 2 C 6 H 4 O 4 ) displayed high electrode capacities up to 300 mAhg −1 [34].…”

Metal–Organic Frameworks Constructed from Group 1 Metals (Li, Na) and Silicon-Centered Linkers

“…10 Since then, Li + -based MOFs have been reported using linkers as varied as amino acids, thiophenedicarboxylates, and anthraquinones. [11][12][13][14][15][16] These Li + -based MOFs have been shown to display properties such as luminescence, [17][18][19] gas uptake, [20][21] and even have potential applications as electrodes in Li batteries. 13 Some Na + -based MOFs have also been reported to possess similar properties to their Li + analogs such as gas sorption, luminescence, and anodes for Na batteries.…”

“…[11][12][13][14][15][16] These Li + -based MOFs have been shown to display properties such as luminescence, [17][18][19] gas uptake, [20][21] and even have potential applications as electrodes in Li batteries. 13 Some Na + -based MOFs have also been reported to possess similar properties to their Li + analogs such as gas sorption, luminescence, and anodes for Na batteries. [22][23][24] Despite this, Na + -based MOFs have been less well studied, partly because the larger cation size results in increased coordination to polar solvents which favors low dimensional coordination networks.…”