90085-60-2Relevant academic research and scientific papers
Isoreticular Crystallization of Highly Porous Cubic Covalent Organic Cage Compounds**
Bein, Thomas,Beuerle, Florian,Clever, Guido H.,Holstein, Julian J.,Ivanova, Svetlana,K?ster, Eva,Keller, Niklas
supporting information, p. 17455 - 17463 (2021/05/31)
Modular frameworks featuring well-defined pore structures in microscale domains establish tailor-made porous materials. For open molecular solids however, maintaining long-range order after desolvation is inherently challenging, since packing is usually governed by only a few supramolecular interactions. Here we report on two series of nanocubes obtained by co-condensation of two different hexahydroxy tribenzotriquinacenes (TBTQs) and benzene-1,4-diboronic acids (BDBAs) with varying linear alkyl chains in 2,5-position. n-Butyl groups at the apical position of the TBTQ vertices yielded soluble model compounds, which were analyzed by mass spectrometry and NMR spectroscopy. In contrast, methyl-substituted cages spontaneously crystallized as isostructural and highly porous solids with BET surface areas and pore volumes of up to 3426 m2 g?1 and 1.84 cm3 g?1. Single crystal X-ray diffraction and sorption measurements revealed an intricate cubic arrangement of alternating micro- and mesopores in the range of 0.97–2.2 nm that are fine-tuned by the alkyl substituents at the BDBA linker.
Modulating Guest Uptake in Core–Shell MOFs with Visible Light
Mutruc, Dragos,Goulet-Hanssens, Alexis,Fairman, Sam,Wahl, Sebastian,Zimathies, Annett,Knie, Christopher,Hecht, Stefan
supporting information, p. 12862 - 12867 (2019/08/08)
A two-component core–shell UiO-68 type metal–organic framework (MOF) with a nonfunctionalized interior for efficient guest uptake and storage and a thin light-responsive outer shell was prepared by initial solvothermal MOF synthesis followed by solvent-as
Side functionalization of diboronic acid precursors for covalent organic frameworks
Faury, Thomas,Dumur, Frederic,Clair, Sylvain,Abel, Mathieu,Porte, Louis,Gigmes, Didier
, p. 2067 - 2075 (2013/04/23)
A series of substituted 1,4-benzenediboronic acids (BDBA) was synthesized and their thermal properties investigated. Two diboronic acids were studied as building-blocks for covalent organic framework (COF) formation, namely 2,5-dimethoxy-1,4-benzenediboronic acid and 2-nitro-1,4-benzeneboronic acid. Interestingly, substitution of the BDBA core caused a dramatic decrease of the polymerization temperature leading to the formation of a less organized structure.
