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Polymorph A-enriched zeolite beta was hydrothermally synthesized from an extremely concentrated system using tetraethylammonium hydroxide (TEAOH) as an organic structure-directing agent (OSDA) in the presence of fluoride. The sample was investigated by powder X-ray diffraction (XRD), 29Si magic angle spinning nuclear magnetic resonance (MAS NMR), 19F MAS NMR, and high-resolution transmission electron microscopy (HRTEM). The polymorph A enrichment was confirmed by the characterization, and the percentage of polymorph A was determined to be approximately 66% by DIFFaX simulation and HRTEM analyses. A pure polymorph A stacking area was detected by HRTEM, and the chiral structure of polymorph A in the zeolite beta was investigated on the basis of the HRTEM images.

Several new coordination polymers (CPs), [Mn(4,3-opybz)2(H2O)2]n (1), [Zn(4,3-opybz)(OH)]n (2), {[Pb(4,3-opybz)(H2O)]·(NO3)}n (3), {[Mn3(4,4-opybz)4(HCOO)2(H2O)4]·6H2O}n (4), Zn(4,4-opybz)2(H2O)2 (5) and {[Pb(4,4-opybz)(4,3-opybz)]·3DMF·7H2O}n (6) (4,4-Hopybz = 4-(4-pyridyl)benzoic acid N-oxide, 4,3-Hopybz = 4-(3-pyridyl)benzoic acid N-oxide), have been successfully synthesized and characterized by elemental analyses, IR spectroscopy, thermogravimetric analysis and single crystal X-ray diffraction. Structural analysis shows that complex 1 features a two-dimensional (2D) layer with a 63 topology. Complexes 2 and 3 present a 2D layer architecture with a 4·82 topology. Complex 4 presents an unusual one-dimensional (1D) chain constructed with linear trinuclear secondary building units (SBUs). Complex 5 has a zero-dimensional (0D) structure which is further connected to form a 2D supramolecular network through O–H⋯O hydrogen bonding. Complex 6 exhibits a 2D layer which is further connected by π⋯π interactions to produce a three-dimensional (3D) supramolecular framework with 1D opening channels. Moreover, as an anode material, complex 6 exhibits a relatively high irreversible capacity of about 860 mA h g−1 in the first discharge process and a reversible lithium storage capacity of up to 405 mA h g−1 at 100 mA g−1 after 100 cycles. The observation of good storage performance demonstrates that CPs are a prospective class of electrode materials for lithium ion batteries (LIBs).

A three-dimensional (3-D) multi-functional mixed valence CuII/CuI-MOF, {[Cu(CuI)2(2-pyzc)2H2O]2·H2O}n (Hpyzc = pyrazine-2-carboxylic acid), has been solvothermally synthesized and successfully characterized by FT-IR spectroscopy, elemental analysis, powder X-ray diffraction, thermal gravimetric analysis (TGA) and single-crystal X-ray diffraction. The structure posesses a 3-D open framework containing 1-D channels and shows a tcj topological network with the Schlafli symbol (43·612)(43)2. This MOF exhibits selective adsorption of CO2/H2 over CH4/N2 and excellent catalytic activity in the oxidation of benzylic compounds and three-component coupling reactions of aromatic alkynes, tosyl azide and diisopropylamine as a cooperative catalyst. The catalyst could be reused several times without significant degradation in catalytic activity.

As a demonstration of ab initio structure characterizations of nano metal organic framework (MOF) crystals by high resolution transmission electron microscopy (HRTEM) and electron diffraction tomography methods, a Zr-MOF (UiO-66) structure was determined and further confirmed by Rietveld refinements of powder X-ray diffraction. HRTEM gave direct imaging of the channels.