Interrupted zeolite LTA and ATN-type boron imidazolate frameworks.

Authors :: Zhang HX
Wang F
Yang H
Tan YX
Zhang J
Bu X
Source :: Journal of the American Chemical Society [J Am Chem Soc] 2011 Aug 10; Vol. 133 (31), pp. 11884-7. Date of Electronic Publication: 2011 Jul 18.
Publication Year :: 2011
Abstract: Zeolite A (LTA) is of much interest in zeolite family because of its large-scale industrial applications. Making Zeolite A (a typical 4-connected tetrahedral framework material) with a lower connectivity (3-connected) might lead to new open architecture with expanded ring size and enhanced functionality. The first interrupted Zeolite A with 3-connected network has been experimentally realized here by a boron imidazolate (im) framework material (BIF-20) with 3-coordinate BH(mim)(3)(-) building units. Additionally, a new strategy toward the construction of functional microporous metal-organic frameworks with interrupted zeolite-type topologies is presented by both 3-connected boron imidazolate frameworks (BIF-20 and BIF-21). BIF-20 has an unusual tetrahedral framework with both debonded α and β cages, and exhibits high H(2) uptake capacity.<br /> (© 2011 American Chemical Society)