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. 2009;48(14):2542-5.
doi: 10.1002/anie.200804169.

Zeolitic boron imidazolate frameworks

Jian Zhang  1 , Tao Wu, Cong Zhou, Shumei Chen, Pingyun Feng, Xianhui Bu
Affiliations

Zeolitic boron imidazolate frameworks

Jian Zhang et al. Angew Chem Int Ed Engl. 2009.

Abstract

B-hive? A family of crystalline materials analogous to porous AlPO(4) but based on boron imidazolate frameworks (BIFs) can be formed by the crosslinking of various presynthesized boron imidazolates with monovalent cations (Li(+) and Cu(+), see picture). This synthetic method is capable of generating a large variety of open frameworks, ranging from the four-connected zeolitic sodalite type to the three-connected chiral (10,3)-a type.

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Figures

Figure 1
Figure 1
View of the coordination environment in BIF-1-Li (a) and BIF-3-Cu (c), respectively, showing the connectivity between the Li+ and B3+ tetrahedra or the Cu+ and B3+ tetrahedra; and the zni net of BIF-1-Li (b) and the sodalite net of BIF-3-Cu (d).
Figure 2
Figure 2
(a) The coordination environment in BIF-4; (b) view of the 4-ring and 8-ring in BIF-4, the terminal bim groups in the B(bim)4 − ligands are highlighted in the 8-ring; (c) the coordination environment in BIF-5; (d) view of the 4-ring and 8-ring in BIF-5.
Figure 3
Figure 3
View of the tripodal ligands in BIF-6 (a), BIF-7 (b) and BIF-8 (c and d). In BIF-8, the racemic BH(eim)3 − ligands (c and d) act as 3-connected building blocks in two-fold interpenetrating srs net of opposite handedness (e).
Figure 4
Figure 4
N2 gas sorption isotherm of BIF-3-Li at 77K. P/P0 is the ratio of gas pressure (P) to saturation pressure (P0), with P0=769 torr (adsorption: dotted line; desorption: circles).
Figure 5
Figure 5
CO2 adsorption isotherms of BIF-3-Li (dotted line) and BIF-3-Cu (circles) at 273 K.
Scheme 1
Scheme 1
The pre-synthesized 4- and 3-connected B-centred ligands.
See this image and copyright information in PMC

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