Chirality sensing using Ag+–thiol coordination polymers

2015 ◽  
Vol 51 (38) ◽  
pp. 8017-8019 ◽  
Author(s):  
Qian Zhang ◽  
Yuan Hong ◽  
Na Chen ◽  
Dan-Dan Tao ◽  
Zhao Li ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Coordination Polymers ◽  
Boronic Acid ◽  
Acid Group ◽  
Thiol Ligand

Achiral coordination polymers of a thiol ligand with Ag+ in aqueous solution were shown to be able to sense the chirality of a monosaccharide that binds with the boronic acid group designed to be equipped in the thiol ligand.

Nanospheres from coordination polymers of Ag+ with a highly hydrophilic thiol ligand in situ formed from dynamic covalent binding and a hydrophobic thiol

2021 ◽  
Author(s):  
Yan Xu ◽  
Xiaosheng Yan ◽  
Si-Bo Zhang ◽  
Shao-Wei Li ◽  
Ning-Shao Xia ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Coordination Polymers ◽  
Phenylboronic Acid ◽  
Covalent Binding ◽  
Acid Group ◽  
Dynamic Binding ◽  
Group 4 ◽  
Thiol Ligand

We report a supramolecular nanosphere of diameter of 8.65 nm built in aqueous solution via glucose dynamic binding to a thiol ligand that bears a phenylboronic acid group, 4-mercaptophenylboronic acid...

Detailed Reaction Mechanisms of 4‐Pyridylboronic Acid and (N‐Methyl)‐4‐Pyridinium Boronic Acid with D‐Sorbitol in Aqueous Solution

2019 ◽  
Vol 4 (17) ◽  
pp. 4944-4951
Author(s):  
Daisuke Kusuyama ◽  
Yuta Samukawa ◽  
Tomoaki Sugaya ◽  
Satoshi Iwatsuki ◽  
Masahiko Inamo ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Reaction Mechanisms ◽  
Boronic Acid

Phenylboronic acid-functionalized core–shell magnetic composite nanoparticles as a novel protocol for selective enrichment of fructose from a fructose–glucose aqueous solution

2017 ◽  
Vol 41 (22) ◽  
pp. 13399-13407 ◽  
Author(s):  
Lei Gu ◽  
Yun Wang ◽  
Juan Han ◽  
Lei Wang ◽  
Xu Tang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Magnetic Nanoparticles ◽  
Boronic Acid ◽  
Phenylboronic Acid ◽  
Sample Solution ◽  
Core Shell ◽  
Magnetic Composite ◽  
Selective Enrichment ◽  
Functionalized Magnetic Nanoparticles ◽  
First Time

We developed an efficient and mild method for the preparation of boronic acid-functionalized magnetic nanoparticles (MNPs), and the selective separation of fructose from a sample solution was demonstrated for the first time.

The acidity constant of fluorene-9-carboxylic acid in aqueous solution. Determination of the pKa of a sparingly soluble substance

1993 ◽  
Vol 71 (2) ◽  
pp. 227-229 ◽  
Author(s):  
A. J. Kresge ◽  
I. G. Pojarlieff ◽  
E. M. Rubinstein
Keyword(s):  
Aqueous Solution ◽  
Carboxylic Acid ◽  
Ionization Constant ◽  
Acid Group ◽  
Acidity Constant ◽  
Carboxylic Acid Group ◽  
Soluble Substance ◽  
Acid Ionization Constant ◽  
Acid Ionization

The acid ionization constant of the carboxylic acid group of fluorene-9-carboxylic acid in aqueous solution at 25 °C was determined to be pKa = 3.61, using a method based upon the increase in solubility of this sparingly soluble substance brought about by its ionization. This corrects an earlier considerably different value of this quantity determined by equating pKa with the pH measured at half-neutralization. The hazard inherent in the latter method when applied to sparingly soluble substances is discussed.

A New Fluorescein Derivative Bearing a Boronic Acid Group as a Fluorescent Chemosensor for Fluoride Ion

2006 ◽  
Vol 71 (22) ◽  
pp. 8626-8628 ◽  
Author(s):  
K. M. K. Swamy ◽  
Yoon Ju Lee ◽  
Han Na Lee ◽  
Jihyun Chun ◽  
Youngmee Kim ◽  
...  
Keyword(s):  
Boronic Acid ◽  
Acid Group ◽  
Fluorescent Chemosensor ◽  
Fluoride Ion

scholarly journals Neue Koordinationspolymere mit Acetylendicarboxylat als verbrückenden und Pyridin als terminierenden Liganden / New Coordination Polymers with Acetylenedicarboxylate as Bridging and Pyridine as Terminating Ligands

2009 ◽  
Vol 64 (10) ◽  
pp. 1093-1097 ◽  
Author(s):  
Irena Stein ◽  
Uwe Ruschewitz
Keyword(s):  
Aqueous Solution ◽  
Hydrogen Bonds ◽  
Single Crystals ◽  
Coordination Polymers ◽  
Metal Salt ◽  
Water Molecules ◽  
Stacking Interactions ◽  
Aromatic Stacking ◽  
Pyridine Ligands ◽  
Acetylenedicarboxylic Acid

By slow diffusion of pyridine (py) into an aqueous solution containing the respective metal salt and acetylenedicarboxylic acid (H2ADC), single crystals of coordination polymers of composition 1∞[MII(H2O)2(py)2ADC] with MII = Zn (1) and Cd (2) were obtained. The crystal structures consist of octahedral MIIN2O4 units, which are connected to chains via acetylenedicarboxylate dianions. Hydrogen bonds between O atoms of the dianions and of the water molecules lead to the formation of layers perpendicular to [010]. The structure is further held together by weak aromatic stacking interactions between the pyridine ligands.

Three new ZnII coordination polymers constructed from a semi-rigid tricarboxylic acid: structural changes caused by flexibility and luminescence sensing for hexavalent chromate anions

2019 ◽  
Vol 75 (9) ◽  
pp. 1286-1298 ◽  
Author(s):  
Yanyan An ◽  
Liping Lu ◽  
Miaoli Zhu
Keyword(s):  
Aqueous Solution ◽  
Hexavalent Chromium ◽  
Coordination Polymers ◽  
Structural Changes ◽  
Ph Value ◽  
Limit Of Detection ◽  
Weak Interactions ◽  
3D Structure ◽  
Tricarboxylic Acid ◽  
Hydrothermal Conditions

Coordination polymers (CPs) with specific structures and functional luminescence have been widely designed as sensors for detecting small molecules and ions. In this study, with or without the help of an N-donor auxiliary linker, three new ZnII CPs, namely, three-dimensional (3D) poly[[pentaaquabis[μ3-5-(4-carboxybenzyloxy)isophthalato]bis[μ6-5-(4-carboxylatobenzyloxy)isophthalato]di-μ3-hydroxido-hexazinc(II)] trihydrate], {[Zn6(C16H10O7)2(C16H9O7)2(OH)2(H2O)5]·3H2O} n or {[Zn6(μ3-HL)2(μ6-L)2(μ3-OH)2(H2O)5]·3H2O} n , (I), one-dimensional (1D) catena-poly[[[aqua(1,10-phenanthroline)zinc(II)]-μ2-5-(4-carboxybenzyloxy)isophthalato] dihydrate], {[Zn(C16H10O7)(C12H8N2)(H2O)]·2H2O} n or {[Zn(μ2-HL)(phen)(H2O)]·2H2O} n (phen is 1,10-phenanthroline), (II), and 3D poly[diaquatetrakis(4,4′-bipyridine)bis[μ6-5-(4-carboxylatobenzyloxy)isophthalato]di-μ3-formato-di-μ3-hydroxido-pentazinc(II)], [Zn5(C16H9O7)2(HCOO)2(OH)2(C10H8N2)4(H2O)2] n or [Zn5(μ4-L)2(bpy)4(μ2-OH)2(μ3-HCOO)2(H2O)2] n (bpy is 4,4′-bipyridine), (III), have been constructed from the semi-rigid tricarboxylic acid 5-(4-carboxybenzyloxy)isophthalic acid (H3 L) under hydrothermal conditions. CP (I) exhibits a twofold interpenetrated 3D+3D→3D skeleton with a 3,5-conn topology constructed from triangular trinuclear [Zn3(COO)4(μ3-OH)] clusters, in which the H3 L ligand adopts three different coordination modes. CP (II) exhibits a 1D infinite chain and stacking that gives a 3D structure mediated by hydrogen bonds and weak interactions. CP (III) is an interesting 3D 3,4,8-conn network including linear tetranuclear [Zn4(μ2-OH)2(HCOO)2(COO)2] clusters with a new {4·62}2{4·64·8}{46·619·83} topological symbol. The influences of the flexible –CH2–O– linker of the H3 L ligand and subtle environmental factors, such as solvent, pH value and auxiliary ligands, on the formation of the final structures are also discussed. The solid-state fluorescence spectra of CPs (I)–(III) were recorded at room temperature and all show better fluorescence performances than H3 L. In particular, (II) can act as a potential multifunctional fluorescent material for sensing hexavalent chromium ions in aqueous solution with high stability, selectivity and sensitivity. Under ultraviolet light of 365 nm from a UV lamp, a signal response of fluorescence from turning on to off can be observed with the naked eye. It was found that the detection for hexavalent chromium (i.e. Cr2O7 2−) by (II) has a high selectivity [K SV = 1.61 × 104 M −1 and limit of detection (LOD) = 0.434 µM] in aqueous solution. Quenching mechanisms were also studied in detail.

Self-assembly of phosphorescent quantum dots/boronic-acid-substituted viologen nanohybrids based on photoinduced electron transfer for glucose detection in aqueous solution

RSC Advances ◽  
2016 ◽  
Vol 6 (11) ◽  
pp. 8588-8593 ◽  
Author(s):  
Yanming Miao ◽  
Maoqing Yang ◽  
Guiqin Yan
Keyword(s):  
Aqueous Solution ◽  
Quantum Dots ◽  
Electron Transfer ◽  
Self Assembly ◽  
Boronic Acid ◽  
Photoinduced Electron Transfer ◽  
Room Temperature ◽  
Glucose Sensor ◽  
Glucose Detection ◽  
Room Temperature Phosphorescence

We synthesized boronic-acid-substituted viologens (BBV) and designed a glucose sensor based on room-temperature phosphorescence (RTP) quantum dots (QDs) and BBV.

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