10.1021/cg301760a
This research focused on the synthesis, characterization, and transformation of a novel 2-fold interpenetrated cadmium-organic framework, [Cd(HBTC)BPE]n·nDMF, utilizing 1,3,5-benzenetricarboxylic acid (H3BTC) and 1,2-bis(4-pyridyl)ethane (BPE). The study aimed to explore the single-crystal-to-single-crystal (SC?SC) transformation of this metal-organic framework (MOF) upon desolvation and its subsequent sorption properties with liquids and gases. The researchers successfully synthesized the MOF and observed a temperature-induced SC?SC transformation, resulting in a desolvated form that was stable up to 350 °C. This desolvated form exhibited selective sorption for nonpolar solvents like benzene, chloroform, 1,4-dioxane, and THF, and demonstrated gas sorption properties with 2.5% N2, 4.5% CO2, and 3.4% N2O absorption by mass at room temperature and moderate pressures. The conclusions highlighted the robustness of the MOF system and its potential applications in gas storage and separation, with ongoing studies to understand the selectivity of sorption.
10.1016/j.tetlet.2010.11.016
The research focuses on the efficient synthesis of new dendrimeric polyesters up to the third generation, utilizing 1,3,5-benzenetricarboxylic acid as a building block. These dendrimers, which possess hydroxy or allyl functional groups on their surface, show potential applications in drug delivery. The synthesis was conducted through a divergent approach, starting with readily available 2-(hydroxymethyl)-2-ethylpropan-1,3-diol and 1,3,5-benzenetrimethanol as central cores, with 3,5-bis[(allyloxy)methyl]benzoic acid being an essential unit of the dendrimer. Key chemicals used in the process include 1,3,5-benzenetricarboxylic acid, its trimethyl ester, borane-dimethyl sulfide complex, allyl bromide, and various reagents for coupling and deprotection reactions such as EDCI, DMAP, and Pd/C. The conclusions of the research indicate that the mild conditions of both coupling and deprotection reactions provided highly pure macromolecular material in good overall yields, and the dendrimers obtained are terminated with reactive carbon-carbon double bonds or benzylic hydroxy groups, which could be further functionalized, making them suitable candidates for drug delivery and for grafting various compounds, including biomolecules, onto their surfaces.
10.1021/ic701393w
The study explores the ionothermal synthesis of six three-dimensional zinc metal?organic frameworks (MOFs) using 1-alkyl-3-methylimidazolium bromide ionic liquids with varying alkyl chain lengths (ethyl to amyl) as solvents. The chemicals involved include Zn(NO?)? as the metal ion source, H?BTC (1,3,5-benzenetricarboxylate acid) as the organic ligand, and the ionic liquids which serve as reaction media and templates. The researchers synthesized six distinct 3-D MOFs, with compounds 1 and 2 being isomeric and free of template, while compounds 3 to 6 incorporate the corresponding ionic liquid cations into their frameworks. The study highlights the structural diversity achieved through ionothermal synthesis, demonstrating the potential for creating novel MOFs with unique features and properties by varying the ionic liquid components and reaction conditions.
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