Here we report the use of a pillaring strategy for the design and synthesis of three novel amidefunctionalized metal-organic frameworks (MOFs), TMUs-22/-23/-24, isoreticular to the recently reported iminefunctionalized TMU-6 and TMU-21 MOFs. An extensive study of their CO2 sorption properties and selectivity for CO2 over N2, from single gas sorption isotherms to breakthrough measurements, revealed that not only the incorporation of amide groups but also their accessibility is crucial to obtain enhanced CO2 sorption and CO2/N2 selectivity. Therefore, the MOF with more accessible amide groups (TMU-24) shows a CO2/N2 selectivity value of ca. 10 (as revealed by breakthrough experiments), which is ca. 500 % and 700 % of the selectivity values observed for the other amidecontaining (TMU-22 and TMU-23) and imine-containing (TMU-6 and TMU-21) MOFs. ASSOCIATED CONTENT Supporting Information. Synthetic procedure for ligand synthesis, crystallographic data, PXRD diagrams, TGA plots, gas sorption and separation data. This material is available free of charge via the Internet at http://pubs.acs.org.
A facile and environmentally friendly nano-scale synthesis of a Zn(II) metal-organic framework (MOF), {[Zn4(BDC)4(bpta)4]·5DMF·3H2O}n (1) (bpta=N,N'-bis(4-pyridinyl)-1,4-benzenedicarboxamide, BDC=1,4-dicarboxylate, DMF=N,N-dimethylformamide), with nanorods morphology under ultrasonic irradiation at ambient temperature and atmospheric pressure has been explored. This MOF has been characterized by scanning electron microscopy (SEM), powder X-ray diffraction (PXRD) and IR spectroscopy. Some parameters such as concentration of initial reagents, power ultrasound irradiation and time effects on size and morphology of nano-structured compound 1 have been studied.
The reactions of FeCl3·6H2O and 2‐(2′‐hydroxyphenyl)‐2‐thiazoline as a bidentate O‐N donor thiazoline ligand (thoz) afford a five‐coordinate FeIII complex [Fe(thoz)2Cl] with a distorted square pyramidal configuration. Complex [Fe(thoz)2Cl] was isolated as air‐stable crystalline solids and fully characterized, including by single‐crystal X‐ray structure analysis. Complex [Fe(thoz)2Cl] shows very efficient reactivity in the oxidation of sulfides to their corresponding sulfoxides using urea hydrogen peroxide (UHP) as the oxidant at room temperature in air.
Palladium(II)-Phosphazane Complexes. -The catalyst generated in situ from Pd(OAc) 2 and LIG shows good activity in the Suzuki reaction of aryl halides (I) with arylboronic acids (II). The phosphazane ligand is easily prepared from PCl3 and PhNH2. -(AMINI*, M.; TARASSOLI, A.; YOUSEFI, S.; DELSOUZ-HAFSHEJANI, S.; BIGDELI, M.; SALEHIFAR, M.; Chin. Chem. Lett. 25 (2014) 1, 166-168, http://dx.
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