Retikuläre Chemie metall‐organischer Polyeder

Tranchemontagne, David J.; Ni, Zhenmin; O’Keeffe, Michael; Yaghi, Omar M.

doi:10.1002/ange.200705008

Cited by 167 publications

(28 citation statements)

References 48 publications

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“…The twofold interpenetrated lvt network was assembled with zinc-containing elliptical vanadoborate clusters and Zn polyhedra. Compared to the metal-organic frameworks (MOFs), where the pore size can be expanded and designed in a more rational way through reticular chemistry [4,10] or modular chemistry, [11,12] the expansion of the pore size in the inorganic crystalline materials is much slower. The porosity of the SUT-7 structure was confirmed by CO 2 adsorption of the as-synthesized materials.…”

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confidence: 99%

Construction of Mesoporous Frameworks with Vanadoborate Clusters

Chen

Bacsik

et al. 2014

Angew Chem Int Ed

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confidence: 99%

Construction of Mesoporous Frameworks with Vanadoborate Clusters

Chen

Bacsik

et al. 2014

Angew Chem Int Ed

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“…[9][10][11][12][13][14] Compared with other porous materials, the unique features of MOFs, are their designable structures, [15][16][17] adjustable pore sizes (from microspore to mesopore) [18][19][20][21][22][23][24] and controllable host-guest interactions inside the pores (from hydrophobic to hydrophilic, polarity to no polarity). [25][26] On the other hand, MOFs possess inherent advantages as no additional support is needed for the heterogenization, and the organic microenvironment provided by the framework often allows the metal active sites to behave in a manner reminiscent of enzymes.…”

Section: Introductionmentioning

confidence: 99%

“…The use of the approach of isoreticular MOFs as catalysts to explore catalytic active sites, as far as we know, is rarely reported due to the challenges to obtain isoreticular MOFs. [17,[38][39][40] The present work aims to synthesize isoreticular frameworks and explore their catalytic reaction and related active sites in the Friedel-Crafts benzylation reaction. {[Zn 3 -…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Isoreticular Zinc(II)‐Phosphonocarboxylate Frameworks and Their Application in the Friedel–Crafts Benzylation Reaction

Deng¹,

Ling²,

Xia³

et al. 2011

Chemistry A European J

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Three isoreticular zinc(II)-phosphonocarboxylate frameworks, namely {[Zn(3)(pbdc)(2)]·2H(3)O}(n) (ZnPC-2), {[Zn(3)(pbdc)(2)]·Hpd·H(3)O·4H(2)O}(n) (Hpd@ZnPC-2) and {[Co(1.5)Zn(1.5)(pbdc)(2)]·2H(3)O}(n) (CoZnPC-2) (H(4)pbdc=5-phosphonobenzene-1,3-dicarboxylic acid, pd=pyrrolidine), were solvothermally synthesized. ZnPC-2 has a 3D structure based on trinuclear Zn(II) clusters (Zn(3)-SBU) showing 3D interconnected channels. Hpd@ZnPC-2 contains an isoreticular framework of ZnPC-2 with small channels blocked by Hpd molecules. In CoZnPC-2, Zn(II) ions in ZnPC-2 are partially substituted by Co(II) ions. The Friedel-Crafts benzylation reactions were carried out over these isoreticular porous materials. The catalytic results reveal that ZnPC-2 is an excellent heterogeneous Lewis acid catalyst with a high selectivity (>90%) towards less bulky para-oriented products. The catalytic reaction has been proved to occur inside the pore of ZnPC-2, and the immobilized Zn(3)-SBUs are the active sites.

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“…Compared to the metal-organic frameworks (MOFs), where the pore size can be expanded and designed in a more rational way through reticular chemistry [4,10] or modular chemistry, [11,12] the expansion of the pore size in the inorganic crystalline materials is much slower. Several strategies [9,13] have been proposed to circumvent this challenge.…”

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confidence: 99%

Construction of Mesoporous Frameworks with Vanadoborate Clusters

Chen

Bacsik

et al. 2014

Angewandte Chemie

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A new porous vanadoborate was synthesized by employing the scale chemistry theory with the vanadoborate cluster V 10 B 28 . The twofold interpenetrated lvt network was assembled with zinc-containing elliptical vanadoborate clusters and Zn polyhedra. The single lvt framework contains a three-dimensional 38 38 20 ring channel system with the pore size (24.7 12.7 ) reaching the mesoscale, thus indicating the possibility of constructing 3D ordered mesopores with vanadoborate clusters. The porosity of the SUT-7 structure was confirmed by CO 2 adsorption of the as-synthesized materials.Crystalline inorganic materials including micro-or/and mesopores are of great importance because of their diverse channel systems and wide applications in adsorption, catalysis, and separation. [1][2][3][4] Mesoporous crystalline materials with a channel size above 2 nm are of special interest as the enlargement of the pores can enhance the diffusion of large organic molecules into the pores when the materials are used as catalysts or supports. However, there are only a few inorganic examples reported with such mesopores, such as ITQ-43[5] (a 28-ring germanium silicate), SU-M, [6] JLG-12 [7] (a 30-ring germanate), ITQ-37 [8] (a 30-ring germanium silicate), and NTHU-13, [9] a series of gallium zincophosphites with ring sizes from 24-ring to 72-ring. Compared to the metal-organic frameworks (MOFs), where the pore size can be expanded and designed in a more rational way through reticular chemistry [4,10] or modular chemistry, [11,12] the expansion of the pore size in the inorganic crystalline materials is much slower. Several strategies [9,13] have been proposed to circumvent this challenge. Müller et al. [14] and Khan [15] introduced linkages between isolated cluster compounds to create porosity, while FØrey [16,17] proposed the scale chemistry method and predicted that the larger the structure building unit (SBU), the larger the pores. Very recently, Wang and coworkers [9] demonstrated that the channels in the phosphate framework can be successfully expanded by using templates with longer carbon chains. Of these three strategies, the first two are very successful with cluster-based building units, such as the germanates. [7,18] Vanadoborates are interesting compounds assembled from vanadoborate clusters. Four types of vanadoborate clusters and their derivatives with different connections of VO 5 and BO 3 /BO 4 polyhedra are mainly reported: V 6 B 20 , [19,20] V 10 B 28 , [21,22] V 12 B 18 , [23][24][25] and V 12 B 16 [23, 26, 27] ( Figure 1). Although these clusters were discovered decades ago, few 3D framework structures have been reported in which they were used as building units. [27,28] In our previous study, we succeeded in linking V 12 B 18 to form the 3D framework SUT-6.[29] The V 12 B 18 cluster in SUT-6 has D 3d point-group symmetry and prefers a six-coordinated net (hxg in SUT-6). This high coordination number of V 12 B 18 makes its surround-

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Retikuläre Chemie metall‐organischer Polyeder

Cited by 167 publications

References 48 publications

Construction of Mesoporous Frameworks with Vanadoborate Clusters

Construction of Mesoporous Frameworks with Vanadoborate Clusters

Synthesis of Isoreticular Zinc(II)‐Phosphonocarboxylate Frameworks and Their Application in the Friedel–Crafts Benzylation Reaction

Construction of Mesoporous Frameworks with Vanadoborate Clusters

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