The first 2D trinuclear Cd(ii)-complex with adenine nucleobase: hydrothermal synthesis, crystal structure and fluorescent properties

Yang, En‐Cui; Zhao, Hong-Kun; Ding, Bin; Wang, Xiu‐Guang; Zhao, Xiaojun

doi:10.1039/b712387f

Cited by 42 publications

(35 citation statements)

References 37 publications

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“…The Cd-O and Cd-N bond distances are in the range of 2.) Å, respectively [seeTable S1], which are comparable to those reported values[12,16,17].1387-7003/$ -see front matter Ó 2008 Elsevier B.V. All rights reserved. doi:10.1016/j.inoche.2008.12.012…”

supporting

confidence: 87%

“…In contrast, Cd3 is coordinated by four trz N and two carboxylate O atoms. The Cd-O and Cd-N bond distances are in the range of 2.217(2)-2.564(3) and 2.277(3)-2.323(3) Å, respectively [see Table S1], which are comparable to those reported values [12,16,17]. …”

supporting

confidence: 85%

“…In contrast, the flexible aliphatic dicarboxylate ligand is considerably less studied, especially on the construction of MOF with polynuclear cluster as SBU. Previously, we have reported the first 2D trinuclear Cd(II)-based polymer with mixed adenine and adipic acid (H 2 ap) ligands, in which the unusual hexadentate ap was observed to substantially induce trinuclear Cd(II)-core aggregation [16]. On the other hand, Lu et al have recently isolated diverse 3D polynuclear clusterbased MOFs with the aid of small and rigid 1,2,4-triazole (Htrz) ligand, indicating that Htrz can participate in the framework connectivity as a bridging ligand [12].…”

mentioning

confidence: 99%

“…On the other hand, Lu et al have recently isolated diverse 3D polynuclear clusterbased MOFs with the aid of small and rigid 1,2,4-triazole (Htrz) ligand, indicating that Htrz can participate in the framework connectivity as a bridging ligand [12]. Herein, to continue our research on the assembly of novel high-dimensional MOFs [16][17][18], two potential cluster-formation ligands, flexible H 2 ap and rigid Htrz, were combined together to assemble with inorganic Cd(II) salt under hydrothermal conditions. A novel 3D Cd(II)-organic framework with unusual pentanuclear Cd(II)-cluster as SBU, [Cd 5 (H 2 O) 4 (ap) 3 -(trz) 4 ] n (1), was successfully isolated, exhibiting a six-connected a-P o topological structure and strong luminescent emission.…”

mentioning

confidence: 99%

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A 3D photoluminescent cadmium(II)-organic framework with unusual pentanuclear cluster as secondary building unit

Yang

Liang

Wang

et al. 2009

Inorganic Chemistry Communications

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supporting

confidence: 87%

supporting

confidence: 85%

mentioning

confidence: 99%

mentioning

confidence: 99%

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A 3D photoluminescent cadmium(II)-organic framework with unusual pentanuclear cluster as secondary building unit

Yang

Liang

Wang

et al. 2009

Inorganic Chemistry Communications

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“…To date, the most commonly reported bio-MOFs are based on Adenine (Ade). [52,[115][116][117][118][119][120] Despite the advantages, bio-MOFs containing nucleobases are not exhaustive, which may be the result of no control over their binding modes to metal ions, and their inherent lack of symmetry which inhibit packing in the formation of crystalline materials. Most of the examples reported in the literature highlight the rich coordination modes of Ade leading in the formation of highly porous bio-MOFs.…”

Section: Nucleobasesmentioning

confidence: 99%

Biologically derived metal organic frameworks

Anderson

Stylianou

2017

Coordination Chemistry Reviews

123

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Metal organic frameworks (MOFs) are extended structures composed of a network of organic ligands and metal ions or clusters connected to each other via coordination bonds. The numerous choices of organic ligands and metal coordination geometries have led to the construction of porous MOFs with various compositions, network topologies, pore sizes and shapes and they possess high surface areas and low densities. The structures of MOFs can be tailor-tuned in such a way that any desired ligand or/and metal ion can be incorporated; this has given to researchers the advantage of designing MOFs for a targeted application. Within this review, we overview recent examples of a sub-class of MOFs namely biologically derived MOFs (bio-MOFs), made of multifunctional and commercially available biologically derived ligands (bio-ligands) such as: amino acids, peptides, nucleobases and saccharides and focus on their coordination chemistry with a variety of metals. Central to this review are four tables detailing the coordination modes of bio-ligands to metals, along with a visual representation of the bio-MOF that is subsequently formed. Through the detail analysis of these structures, we highlight the structural impact of these ligands on the structure, and their contribution to the MOFs properties and applications. Finally, we showcase the potential of bio-MOFs in several research areas such as CO2 capture, separation, catalysis, drug delivery and sensing.

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Metal–Organic Frameworks from Edible Natural Products

et al. 2010

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Metal-organic frameworks (MOFs) represent [1] an extensive class of porous crystals in which organic struts link metalcontaining clusters. The success in controlling the functionality and structure of MOFs has led to numerous applications, [2] most notably gas adsorption, [3] storage of clean gas fuels, [4] catalysis, [5] separations, [6] and drug delivery. [7] However, the vast majority of MOFs described to date are composed of organic struts derived from non-renewable petrochemical feedstocks and transition metals. The challenge in preparing MOFs from natural products lies in the inherent asymmetry of the building units, which are not amenable to crystallization in the form of highly porous frameworks. Herein, we report a strategy to overcome this problem using g-cyclodextrin (g-CD), a symmetrical cyclic oligosaccharide that is mass-produced enzymatically from starch [8] and comprised of eight asymmetric a-1,4-linked dglucopyranosyl residues. These g-CD building units are then linked by potassium ions, in aqueous media at ambient temperature and pressure, to form a body-centered cubic structure, termed CD-MOF-1, which has the empirical formula [(C 48 H 80 O 40 )(KOH) 2 ] n . CD-MOFs can be prepared entirely from edible ingredients: combining food-grade g-CD with salt substitute (KCl) or potassium benzoate (food additive E212) in bottled water and Everclear grain spirit (EtOH) yields porous frameworks which constitute edible MOFs.While there have been a few reports of MOFs assembled from amino acids, [9] nucleobases, [7a, 10] peptides, [11] magnesium formates, [12] and metal glutarates, [13] examples of these materials are not common despite the rapidly growing desire to fabricate MOFs from naturally available building blocks. We suspect that the key to our success in assembling CD-MOFs lies in the symmetric arrangement (C 8 ) within the g-CD torus of eight asymmetric (C 1 ) a-1,4-linked d-glucopyranosyl residues and the ready availability of g-CD as a chiral molecular building block (Figure 1). CD-MOF-1 was prepared by combining 1.0 equiv of g-CD with 8.0 equiv of KOH in aqueous solution, followed by vapor diffusion of MeOH into the solution during 2-7 days, resulting in colorless, cubic, single crystals, suitable for X-ray crystallography, in approximately 70 % yield. Other CD-MOFs were readily obtained using salts of Na + , Rb + , and Cs + , giving rise to an extensive new family of porous materials. A complete list of metal salts employed to form CD-MOFs and the full synthesis of CDMOFs are provided in Section S2 of the Supporting Information.The X-ray crystal structure of CD-MOF-1 [14] reveals that eight-coordinate K + ions not only assist in the assembly of (g-CD) 6 cubes (Figure 2 a,b), wherein six g-CD units occupy the faces of a cube, but they also serve to link these cubes together in a three-dimensional array which extends throughout the crystal (Figure 2 c). The (g-CD) 6 repeating motifs adopt a body-centered cubic packing arrangement wherein each symmetrically equivalent K + ion links two co...

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The first 2D trinuclear Cd(ii)-complex with adenine nucleobase: hydrothermal synthesis, crystal structure and fluorescent properties

Cited by 42 publications

References 37 publications

A 3D photoluminescent cadmium(II)-organic framework with unusual pentanuclear cluster as secondary building unit

A 3D photoluminescent cadmium(II)-organic framework with unusual pentanuclear cluster as secondary building unit

Biologically derived metal organic frameworks

Metal–Organic Frameworks from Edible Natural Products

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