Crystal engineering with 1-benzofuran-2,3-dicarboxylic acid: co-crystals with bipyridyl ligands, discrete complexes and coordination polymers with metal ions

CrystEngComm ◽  
2010 ◽  
Vol 12 (11) ◽  
pp. 3914 ◽  
Author(s):  
Hatem M. Titi ◽  
Israel Goldberg
Keyword(s):  
Metal Ions ◽  
Dicarboxylic Acid ◽  
Coordination Polymers ◽  
Crystal Engineering

New metal–organic frameworks derived from pyridine-3,5-dicarboxylic acid: structural diversity arising from the addition of templates into the reaction systems

CrystEngComm ◽  
2020 ◽  
Vol 22 (11) ◽  
pp. 2083-2096 ◽  
Author(s):  
Eleni E. Moushi ◽  
Andreas Kourtellaris ◽  
Eleni Andreou ◽  
Athina Fidelli ◽  
Giannis S. Papaefstathiou ◽  
...  
Keyword(s):  
Metal Ions ◽  
Dicarboxylic Acid ◽  
Coordination Polymers ◽  
Metal Organic Frameworks ◽  
Structural Diversity ◽  
Reaction Systems ◽  
Metal Organic

The effect of aminoalcohol/polyol template molecules in the formation of MOFs based on bipositive metal ions and pyridine-3,5-dicalboxylate ligand was investigated providing access to a series of new multidimensional coordination polymers.

scholarly journals Synthesis and Characterization of Two New Coordination Polymers Constructed from Azobenzene-4, 4′-Dicarboxylic Acid with Zinc (Ii) and Cd (Ii) 2, 2′-Bipyridine

2018 ◽  
Vol 7 ◽  
pp. 39-42
Author(s):  
Pramod Kumar Yadav
Keyword(s):  
Transition Metal ◽  
Metal Ions ◽  
Dicarboxylic Acid ◽  
Coordination Polymers ◽  
Molecular Structures ◽  
Metal Coordination ◽  
Synthesis And Characterization ◽  
Metal Coordination Polymers

Two transition metal coordination polymers [Zn(4,4′-ADA)(bpy)]n (1) and [Cd(4,4′-ADA)(bpy)(H2O)2]n (2) have been assembled from azobenzene-4,4′- dicarboxylic acid (H2ADA) with the help of 2,2′-bipyridine (bpy) ligand. The different molecular structures for complexes 1 and 2 formed from the same ligand (H2ADA) reveals the fact that organic linkers display different coordination preferences at different metal ions.

Crystal structures, topologies and luminescent properties of three Zn(ii)/Cd(ii) coordination networks based on naphthalene-2,6-dicarboxylic acid and different bis(imidazole) linkers

RSC Advances ◽  
2015 ◽  
Vol 5 (21) ◽  
pp. 16190-16198 ◽  
Author(s):  
Zhi-Hao Yan ◽  
Wen Wang ◽  
Liangliang Zhang ◽  
Xiaowei Zhang ◽  
Lei Wang ◽  
...  
Keyword(s):  
Metal Ions ◽  
Dicarboxylic Acid ◽  
Crystal Structures ◽  
Coordination Polymers ◽  
Structural Diversity ◽  
Luminescent Properties ◽  
Coordination Networks ◽  
Bridging Ligands

Three new coordination polymers (CPs) based on H2ndc acid have been synthesized and structurally characterized. Three CPs exhibit structural diversity depending on different bis(imidazole) bridging ligands and center metal ions.

Syntheses, Photoluminescent Properties, and Structural Investigation of Five Complexes based on a New T-Shaped 2-(Pyridin-3-yl)-4,6-Pyrimidine Dicarboxylic Acid Ligand: Structure Evolution from One-dimensional Chains to Three-dimensional Architectures

2013 ◽  
Vol 66 (11) ◽  
pp. 1342 ◽  
Author(s):  
Dongsheng Deng ◽  
Guohui Kang ◽  
Baoming Ji ◽  
Hongliang Li ◽  
Guirong Qu ◽  
...  
Keyword(s):  
Metal Ions ◽  
Dicarboxylic Acid ◽  
Coordination Polymers ◽  
Metal Organic Framework ◽  
Three Dimensional ◽  
Three Dimensions ◽  
Structure Evolution ◽  
Hydrothermal Conditions ◽  
Metal Organic ◽  
Organic Framework

A series of structurally diverse coordination polymers, [Mn(ppmdc)(H2O)2]n (1), [Cu(ppmdc)(H2O)2]n (2), {[Co(ppmdc)][Co(ppmdc)(H2O)]}n (3), [Zn(ppmdc)(H2O)]n (4), and [Cd(ppmdc)]n (5) (H2ppmdc = 2-(pyridin-3-yl)-4,6-pyrimidine dicarboxylic acid) were obtained from metal salts and H2ppmdc under hydrothermal conditions. Single crystal X-ray structural analysis reveals that complexes 1–5 have different structures, ranging from one- to three-dimensions, which are mainly due to the different metal ions, and especially the coordination mode of the H2ppmdc ligand. Complexes 1 and 2 are 1D coordination polymers, in which the ppmdc2– ligand adopts a bis-(bidentate) mode to link metal ions. Complexes 3 and 4 feature a 2D metal-organic framework with Schläfli topologies of (4.62) (42.62.82) and (4.82), respectively, in which the metal ions are bridged by μ3-ppmdc2– ligands. Complex 5 possesses a 3D nanotubular metal-organic framework with a point symbol of (49.66) topology built up from the 6-connected ppmdc2– ligands and Cd(ii) ions. The thermal properties of complexes 1–5 have been determined. Moreover, investigation of photoluminescent properties reveals that the configuration of ppmdc2– resulting from metal-directed coordination has a profound effect on the fluorescence emissions of complexes 4 and 5.

Metal-organic Nanopharmaceuticals

2020 ◽  
Vol 8 (3) ◽  
pp. 163-190
Author(s):  
Benjamin Steinborn ◽  
Ulrich Lächelt
Keyword(s):  
Metal Ions ◽  
Coordination Polymers ◽  
Active Agent ◽  
Lewis Base ◽  
High Loading ◽  
Active Components ◽  
Base Functions ◽  
Metal Organic ◽  
Theranostic Applications ◽  
Pharmacologically Active

: Coordinative interactions between multivalent metal ions and drug derivatives with Lewis base functions give rise to nanoscale coordination polymers (NCPs) as delivery systems. As the pharmacologically active agent constitutes a main building block of the nanomaterial, the resulting drug loadings are typically very high. By additionally selecting metal ions with favorable pharmacological or physicochemical properties, the obtained NCPs are predominantly composed of active components which serve individual purposes, such as pharmacotherapy, photosensitization, multimodal imaging, chemodynamic therapy or radiosensitization. By this approach, the assembly of drug molecules into NCPs modulates pharmacokinetics, combines pharmacological drug action with specific characteristics of metal components and provides a strategy to generate tailorable multifunctional nanoparticles. This article reviews different applications and recent examples of such highly functional nanopharmaceuticals with a high ‘material economy’. : Lay Summary: Nanoparticles, that are small enough to circulate in the bloodstream and can carry cargo molecules, such as drugs, imaging or contrast agents, are attractive materials for pharmaceutical applications. A high loading capacity is a generally aspired parameter of nanopharmaceuticals to minimize patient exposure to unnecessary nanomaterial. Pharmaceutical agents containing Lewis base functions in their molecular structure can directly be assembled into metal-organic nanopharmaceuticals by coordinative interaction with metal ions. Such coordination polymers generally feature extraordinarily high loading capacities and the flexibility to encapsulate different agents for a simultaneous delivery in combination therapy or ‘theranostic’ applications.

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