scholarly journals The influence of the enantiomeric ratio of an organic ligand on the structure and chirality of metal–organic frameworks

2014 ◽  
Vol 50 (89) ◽  
pp. 13829-13832 ◽  
Author(s):  
Iván Burneo ◽  
Kyriakos C. Stylianou ◽  
Inhar Imaz ◽  
Daniel Maspoch
Keyword(s):  
Metal Organic Frameworks ◽  
Organic Ligand ◽  
Enantiomeric Ratio ◽  
Metal Organic

Syntheses and structures of two novel fluorescent metal–organic frameworks generated from a tridentate donor–acceptor motif ligand

2020 ◽  
Vol 76 (6) ◽  
pp. 605-615
Author(s):  
Yong-Jin Zhao ◽  
Jian-Ping Ma ◽  
Jianzhong Fan ◽  
Yan Geng ◽  
Yu-Bin Dong
Keyword(s):  
Solid State ◽  
Hydrogen Bonds ◽  
Weak Interactions ◽  
Metal Organic Frameworks ◽  
3D Structure ◽  
Organic Ligand ◽  
Bidentate Ligand ◽  
Donor Acceptor ◽  
Metal Organic ◽  
3D Networks

The tridentate organic ligand 4,4′,4′′-(4,4,8,8,12,12-hexamethyl-8,12-dihydro-4H-benzo[9,1]quinolizino[3,4,5,6,7-defg]acridine-2,6,10-triyl)tribenzoic acid (H3L) has been synthesized (as the methanol 1.25-solvate, C48H39NO6·1.25CH3OH). As a donor–acceptor motif molecule, H3L possess strong intramolecular charge transfer (ICT) fluorescence. Through hydrogen bonds, H3L molecules construct a two-dimensional (2D) network, which pack together into three-dimensional (3D) networks with an ABC stacking pattern in the crystalline state. Based on H3L and M(NO3)2 salts (M = Cd and Zn) under solvothermal conditions, two metal–organic frameworks (MOFs), namely, catena-poly[[triaquacadmium(II)]-μ-10-(4-carboxyphenyl)-4,4′-(4,4,8,8,12,12-hexamethyl-8,12-dihydro-4H-benzo[9,1]quinolizino[3,4,5,6,7-defg]acridine-2,6-diyl)dibenzoato], [Cd(C48H37NO6)(H2O)3] n , I, and poly[[μ3-4,4′,4′′-(4,4,8,8,12,12-hexamethyl-8,12-dihydro-4H-benzo[9,1]quinolizino[3,4,5,6,7-defg]acridine-2,6,10-triyl)tribenzoato](μ3-hydroxido)zinc(II)], [Zn2(C48H36NO6)(OH)] n , II, were synthesized. Single-crystal analysis revealed that both MOFs adopt a 3D structure. In I, partly deprotonated HL 2− behaves as a bidentate ligand to link a CdII ion to form a one-dimensional chain. In the solid state of I, the existence of weak interactions, such as O—H...O hydrogen bonds and π–π interactions, plays an essential role in aligning 2D nets and 3D networks with AB packing patterns for I. The deprotonated ligand L 3− in II is utilized as a tridentate building block to bind ZnII ions to construct 3D networks, where unusual Zn4O14 clusters act as connection nodes. As a donor–acceptor molecule, H3L exhibits fluorescence with a photoluminescence quantum yield (PLQY) of 70% in the solid state. In comparison, the PL of both MOFs is red-shifted with even higher PLQYs of 79 and 85% for I and II, respectively.

scholarly journals Growth inhibition ofMicrocystic aeruginosaby metal–organic frameworks: effect of variety, metal ion and organic ligand

RSC Advances ◽  
2018 ◽  
Vol 8 (61) ◽  
pp. 35314-35326 ◽  
Author(s):  
Gongduan Fan ◽  
Liang Hong ◽  
Xiaomei Zheng ◽  
Jinjin Zhou ◽  
Jiajun Zhan ◽  
...  
Keyword(s):  
Growth Inhibition ◽  
Metal Ions ◽  
Metal Ion ◽  
Metal Organic Frameworks ◽  
Organic Ligand ◽  
Organic Ligands ◽  
Metal Organic

MOFs have been applied in the inactivation ofMicrocystic aeruginosa. The algal suppression by MOFs depends on the presence of different metal ions and organic ligands.

The concept of mixed organic ligands in metal–organic frameworks: design, tuning and functions

2015 ◽  
Vol 44 (12) ◽  
pp. 5258-5275 ◽  
Author(s):  
Zheng Yin ◽  
Yan-Ling Zhou ◽  
Ming-Hua Zeng ◽  
Mohamedally Kurmoo
Keyword(s):  
Metal Organic Frameworks ◽  
Organic Ligand ◽  
Organic Ligands ◽  
Metal Organic ◽  
Rational Construction

The mixed organic ligand strategy is significant for the rational construction of MOFs, and furthermore for their functionality and tunability.

Two novel structures based on an organic ligand with two different coordination modes

RSC Advances ◽  
2015 ◽  
Vol 5 (58) ◽  
pp. 46790-46800 ◽  
Author(s):  
Li-Na Xiao ◽  
Xiao-Jing Song ◽  
Li-Wei Fu ◽  
Yang-Yang Hu ◽  
Hai-Yang Guo ◽  
...  
Keyword(s):  
Metal Organic Frameworks ◽  
Organic Ligand ◽  
Coordination Modes ◽  
Metal Organic ◽  
Novel Structures

Two novel 3-D POMMOF structures containing both metal–organic frameworks and pure inorganic frameworks have been synthesized.

Two new metal–organic frameworks based on tetrazole–heterocyclic ligands accompanied by in situ ligand formation

2017 ◽  
Vol 46 (10) ◽  
pp. 3223-3228 ◽  
Author(s):  
Qin Li ◽  
Mei-Hui Yu ◽  
Jian Xu ◽  
Ai-Lin Li ◽  
Tong-Liang Hu ◽  
...  
Keyword(s):  
Metal Organic Frameworks ◽  
Organic Ligand ◽  
Isophthalic Acid ◽  
Dimroth Rearrangement ◽  
Heterocyclic Ligands ◽  
Metal Organic

Two new MOFs have been constructed by the Dimroth rearrangement of the in situ generated organic ligand 5-((2H-tetrazol-5-yl)amino)isophthalic acid (H3L).

Two-dimensional metal–organic frameworks with high oxidation states for efficient electrocatalytic urea oxidation

2017 ◽  
Vol 53 (79) ◽  
pp. 10906-10909 ◽  
Author(s):  
Dongdong Zhu ◽  
Chunxian Guo ◽  
Jinlong Liu ◽  
Liang Wang ◽  
Yi Du ◽  
...  
Keyword(s):  
Oxidation Reaction ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Organic Ligand ◽  
Oxidation States ◽  
Two Dimensional ◽  
Benzenedicarboxylic Acid ◽  
High Oxidation ◽  
Metal Organic ◽  
Nickel Species

A two-dimensional metal–organic framework comprising nickel species and an organic ligand of benzenedicarboxylic acid is fabricated and explored as an electrocatalyst for urea oxidation reaction.

scholarly journals Nanoscale Metal-Organic Frameworks as Fluorescence Sensors for Food Safety

Antibiotics ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 358
Author(s):  
Xilin Dou ◽  
Kai Sun ◽  
Haobin Chen ◽  
Yifei Jiang ◽  
Li Wu ◽  
...  
Keyword(s):  
Food Safety ◽  
Metal Organic Frameworks ◽  
Food Additives ◽  
Organic Ligand ◽  
Fast Response ◽  
High Accuracy ◽  
Hazardous Substances ◽  
Great Stability ◽  
Fluorescence Sensors ◽  
Metal Organic

Food safety has attracted attention worldwide, and how to detect various kinds of hazardous substances in an efficient way has always been a focus. Metal-Organic Frameworks (MOFs) are a class of hybrid porous materials formed by organic ligand and metal ions. Nanoscale MOFs (NMOFs) exhibit great potential in serving as fluorescence sensors for food safety due to their superior properties including high accuracy, great stability, fast response, etc. In this review, we focus on the recent development of NMOFs sensing for food safety. Several typical methods of NMOFs synthesis are presented. NMOFs-based fluorescence sensors for contaminants and adulterants, such as antibiotics, food additives, ions and mycotoxin etc. are summarized, and the sensing mechanisms are also presented. We explore these challenges in detail and provide suggestions about how they may be surmounted. This review could help the exploration of NMOFs sensors in food related work.

scholarly journals Biodegradable Metal Organic Frameworks for Multimodal Imaging and Targeting Theranostics

Biosensors ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 299
Author(s):  
Xiangdong Lai ◽  
Hui Jiang ◽  
Xuemei Wang
Keyword(s):  
Metal Ion ◽  
Multimodal Imaging ◽  
Rational Design ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Organic Ligand ◽  
Therapeutic Strategies ◽  
Ion Clusters ◽  
Surface Areas ◽  
Metal Organic

Though there already had been notable progress in developing efficient therapeutic strategies for cancers, there still exist many requirements for significant improvement of the safety and efficiency of targeting cancer treatment. Thus, the rational design of a fully biodegradable and synergistic bioimaging and therapy system is of great significance. Metal organic framework (MOF) is an emerging class of coordination materials formed from metal ion/ion clusters nodes and organic ligand linkers. It arouses increasing interest in various areas in recent years. The unique features of adjustable composition, porous and directional structure, high specific surface areas, biocompatibility, and biodegradability make it possible for MOFs to be utilized as nano-drugs or/and nanocarriers for multimodal imaging and therapy. This review outlines recent advances in developing MOFs for multimodal treatment of cancer and discusses the prospects and challenges ahead.

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