Moreover, a liquid sorption experiment reveals the favorable sorption of benzene and water. A thermogravimetric (TG) analysis indicates the thermal stability of JUC-Z1 up to 397 ☌ in air. N 2 adsorption results suggest that the hybrid framework has a narrow pore size distribution from 11.8 to 20.0 Å, with a BET surface area of 283 m 2 g −1 and a pore volume of 0.226 cm 3 g −1. The powder X-ray diffraction (PXRD) pattern and transmission electron microscope (TEM) image show that JUC-Z1 is spherical with uniform micropores. The results showed that inorganic silsesquioxane cubes were linearly covalently-linked by biphenyls, offering a highly cross-coupling framework. Fourier transform infrared spectroscopy (FTIR) was performed to confirm the presence of functions in the framework. Angewandte Communications DOI: 10.1002/anie.201300256 Organic Frameworks A Squaraine-Linked Mesoporous Covalent Organic Framework Atsushi Nagai, Xiong Chen, Xiao Feng, Xuesong Ding, Zhaoqi Guo, and Donglin Jiang Covalent organic frameworks (COFs) are a class of design- able crystalline polymers with structural periodicity and inherent porosity.19 COFs have emerged as new porous. The structure of JUC-Z1 was characterized by 13 C CP/MAS NMR and 29 Si MAS NMR experiments. Peng, Ye Peng, Ye Peng, Ye Peng, Ye Peng, Ye Peng, Ye Peng, Ye Peng, Yeīy a Yamamoto-type of Ullmann cross-coupling reaction, a well-defined covalently-linked microporous organic-inorganic hybrid framework polyoctaphenylsilsesquioxane (JUC-Z1) was effectively prepared from the nano building block p -iodio-octaphenylsilsesquioxane (I8OPS) with a yield of ca. A covalently-linked microporous organic-inorganic hybrid framework containing polyhedral oligomeric silsesquioxane moieties A covalently-linked microporous organic-inorganic hybrid framework containing polyhedral.
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