524960-71-2Relevant academic research and scientific papers
A charge-separated diamondoid metal-organic framework
Thapa, Sheela,Hettiarachchi, Eshani,Dickie, Diane A.,Rubasinghege, Gayan,Qin, Yang
, p. 12654 - 12657 (2018)
We report the synthesis, characterization, and gas adsorption analyses of a new charge-separated metal-organic framework (MOF), UNM-1 (C52H16BCuF16N4), possessing diamondoid structures, assembled from an anionic tetrahedral borate ligand and cationic Cu(i) metal ion. The resulting MOF structure displays four-fold interpenetration, resulting in high environmental stability, and at the same time possesses relatively large surface area (SABET = 621 m2 g?1) due to the absence of free ions. Gas adsorption measurements revealed temperature-dependent CO2 adsorption/desorption hysteresis and large CO2/N2 ideal selectivities up to ca. 99 at 313 K and 1 bar, suggesting potential applications of this type of charge-separated MOFs in flue gas treatment and CO2 sequestration.
Synthesis of pyramidal tetraarylborate pentads
Sakamoto, Nobuhito,Ohta, Masahiko,Kokado, Kenta,Sada, Kazuki
, p. 14853 - 14858 (2019/09/30)
In the present study, we designed tetrahedral tetraarylborate pentads which were synthesized by a typical click reaction, copper-catalyzed azide-alkyne cyclization. The synthesis of the borate pentads was confirmed by FT-IR and NMR spectroscopies, and NMR measurements indicated a rapid exchange of bound and unbound counter cations. The obtained borate pentads exhibited a representative behavior of weak electrolytes, and thus a decrease of their concentration caused a rapid increase of their molar conductivity, especially at the limit of dilution. Additionally, the observed association constant did not correspond to the theoretical association constant, probably because of the multivalent ionic dissociation dependent on the dielectric constant of the media.
Synthesis of nanometer-sized, rigid, and hydrophobic anions
Tuerp, David,Wagner, Manfred,Enkelmann, Volker,Muellen, Klaus
supporting information; experimental part, p. 4962 - 4965 (2011/06/26)
Size matters: The strategy of divergent dendronization allows for the synthesis of unprecedented large, rigid, and bulky anions (see picture). Their size, density, and chemical nature of surface can be tailored to obtain more hydrophobic, less nucleophilic, and more weakly coordinating anions. Copyright
