A three-dimensional porous metal–organic framework with the rutile topology constructed from triangular and distorted octahedral building blocks

2005 ◽  
pp. 2402 ◽  
Author(s):  
Linhua Xie ◽  
Shuxia Liu ◽  
Bo Gao ◽  
Chundan Zhang ◽  
Chunyan Sun ◽  
...  
2011 ◽  
Vol 14 (11) ◽  
pp. 1819-1822 ◽  
Author(s):  
Zhi-Hui Zhang ◽  
Sheng-Chun Chen ◽  
Qun Chen ◽  
Ming-Yang He ◽  
Huan Xu

2012 ◽  
Vol 65 (12) ◽  
pp. 1662 ◽  
Author(s):  
Zilu Chen ◽  
Chuanbing Zhang ◽  
Xianlin Liu ◽  
Zhong Zhang ◽  
Fupei Liang

A chiral metal-organic framework formulated as [Zn3(L-TMTA)2(4,4′-bpy)4]·24H2O (1) was prepared from the reaction of Zn(NO3)2·6H2O with trimesoyltri(L-alanine) (L-TMTAH3) in the presence of 4,4′-bipyridine (4,4′-bpy). Compound 1 features linear trinuclear secondary building blocks [Zn3(syn-syn-COO)2(μ2,η3-COO)2]2+. Each linear trinuclear secondary building block is further linked to another eight ones around it by four L-TMTA3– ligands and eight 4,4′-bpy ligands, leading to the construction of a uninodal three-dimensional framework with triangular prism-like one-dimensional channels. Dehydrated compound 1 displays remarkable adsorption selectivity on CO2 and water vapour over N2 gas.


RSC Advances ◽  
2016 ◽  
Vol 6 (47) ◽  
pp. 40945-40952 ◽  
Author(s):  
Wei Long ◽  
Wenge Qiu ◽  
Chuanqiang Li ◽  
Liyun Song ◽  
Guangmei Bai ◽  
...  

A highly porous metal–organic framework based on supramolecular building blocks with pcu-topology has been tested for the oxidative coupling of amines and disulfides to afford the N-sulfenylimines directly in good yields.


2018 ◽  
Vol 71 (12) ◽  
pp. 978
Author(s):  
Bing Yan ◽  
Huanqiu Li ◽  
Wenyan Jiang ◽  
Long Mu

Targeted anticancer drug delivery systems (DDSs) have been considered as one of the most important approaches for reducing the side effects and enhancing the therapy effect in cancer treatment. This work presents a targeted anticancer DDS on the basis of a newly synthesised adeninate-based metal–organic framework (MOF) [Zn2(ad)2(AMDB)(H2O)](DMF)3 (1) with biomolecular adenine (HAd), zinc(ii) ions, and 4,4′-(aminomethylene)dibenzoic acid (H2AMDB) as the molecular building blocks. The structural analysis via X-ray diffraction technology shows MOF 1 is a channel-type three-dimensional network composed of rod-like Zn–Ad chains. Due to its large inner free spaces and uncoordinated N donor sites functionalised pore surroundings, the antitumour molecule 5-fluorouracil (5-Fu) could be loaded into the pores of 1a (activated 1) though an adsorption process, which shows a moderate high storage capacity of 32 wt-%. At the same time, the pH-dependent delivery of 5-Fu could be achieved in phosphate-buffered saline (PBS) solution. With a lower pH value, the drug release will be enhanced. Furthermore, the invitro antitumour activity of the drug/1a composite has been probed via 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay on two human osteogenic sarcoma cells (MG63 and U2OS).


2009 ◽  
Vol 48 (11) ◽  
pp. 4616-4618 ◽  
Author(s):  
Shengqian Ma ◽  
Daofeng Sun ◽  
Paul M. Forster ◽  
Daqiang Yuan ◽  
Wenjuan Zhuang ◽  
...  

2014 ◽  
Vol 40 ◽  
pp. 148-150 ◽  
Author(s):  
Jian-Liang Zhou ◽  
Yuan-Yuan Wang ◽  
Min-Jia Zhou ◽  
Ling Qin ◽  
Ming-Dao Zhang ◽  
...  

2016 ◽  
Vol 52 (17) ◽  
pp. 3494-3496 ◽  
Author(s):  
Ganggang Chang ◽  
Bin Li ◽  
Hailong Wang ◽  
Tongliang Hu ◽  
Zongbi Bao ◽  
...  

A novel non-interpenetrated three-dimensional porous metal–organic framework UTSA-68 has been controllably synthesized by altering the reaction conditions.


2019 ◽  
Vol 5 (5) ◽  
pp. eaav4119 ◽  
Author(s):  
Eunji Jin ◽  
In Seong Lee ◽  
Dongwook Kim ◽  
Hosoowi Lee ◽  
Woo-Dong Jang ◽  
...  

Mechanical metamaterials exhibit unusual properties, such as negative Poisson’s ratio, which are difficult to achieve in conventional materials. Rational design of mechanical metamaterials at the microscale is becoming popular partly because of the advance in three-dimensional printing technologies. However, incorporating movable building blocks inside solids, thereby enabling us to manipulate mechanical movement at the molecular scale, has been a difficult task. Here, we report a metal-organic framework, self-assembled from a porphyrin linker and a new type of Zn-based secondary building unit, serving as a joint in a hinged cube tessellation. Detailed structural analysis and theoretical calculation show that this material is a mechanical metamaterial exhibiting auxetic behavior. This work demonstrates that the topology of the framework and flexible hinges inside the structure are intimately related to the mechanical properties of the material, providing a guideline for the rational design of mechanically responsive metal-organic frameworks.


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