Conversion of glycerol into high yields of 1,2-propanediol in absence of added hydrogen is possible with Pt impregnated NaY zeolite characterized by extra-zeolitic metal particles combined with zeolite Brønsted acidity.

The assembly of the asymmetric bis(bidentate) 2-pyrimidinecarboxylate ligand with Cd(II) produces a metal-organic framework with the RHO zeolitic topology, while 5-(2'-pyrimidyl)tetrazolate with Cd(II) leads to square grid networks.

Quantum cluster and embedded cluster approaches were used to investigate the proton transfer reaction for a series of model clusters of zeolite/(H2O)n ; n = 1, 2, 3, and 4, using the B3LYP/6-31G (d,p) level of theory. For both calculations, without promoted water, the hydrogen-bonded dimer of the zeolite/water system exists as a simple hydrogen-bonded complex, ZOH(H2O)2, and no proton transfer ...

Truncated rhombic dodecahedral zeolitic imidazolate framework-8 (ZIF-8) nanocrystals are fabricated with acetate as a modulating ligand; ZnS hollow polyhedra with uniform morphology are obtained using the ZIF-8 templates.

A zeolitic imidazolate framework material of SOD topology possessing primarily unsubstituted imidazolate (im) linkers has been synthesized via solvent-assisted linker exchange (SALE) of ZIF-8. The structure of the new material, SALEM-2, has been confirmed through (1)H NMR and powder and single-crystal X-ray diffraction. SALEM-2 is the first example of a porous Zn(im)(2) ZIF possessing a truly z...

A novel zinc gallophosphate zeolitic material |(C12H14N2)4F1.33|[Ga13.33Zn6.67(PO4)20] (denoted as JU101) has been prepared by using in situ generated methyl viologen (MV) as the template. The framework of JU101 features two building units including an unprecedented fused d6r and a novel [4$6$8$10] cavity. The connection of these two building units forms a 3D intersecting pore system containing...

The peptide-based porous 3D framework, ZnCar, has been synthesized from Zn(2+) and the natural dipeptide carnosine (β-alanyl-L-histidine). Unlike previous extended peptide networks, the imidazole side chain of the histidine residue is deprotonated to afford Zn-imidazolate chains, with bonding similar to the zeolitic imidazolate framework (ZIF) family of porous materials. ZnCar exhibits permanen...

A new synthesis route, based on the silanization of zeolitic seeds, has been applied to prepare nanocrystalline TS-1 zeolite with hierarchical porosity, leading to materials exhibiting high catalytic activity in 1-octene epoxidation with organic hydroperoxides as oxidizing agents.