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37 Results Found

  • Communication
  • Open Access
8 Citations
3,756 Views
12 Pages

7 December 2018

A novel coordination polymer, {[Cd4(Dccbp)4]·H2O} (1) (Dccbp = 3,5-dicarboxy-1-(3-carboxybenzyl)pyridin-1-ium) was synthesized under hydrothermal conditions by a zwitterionic organic ligand and characterized by single crystal X-ray diffraction...

  • Article
  • Open Access
1 Citations
1,358 Views
16 Pages

Structure–Property Relationships in Zwitterionic Pyridinium–Triazole Ligands: Insights from Crystal Engineering and Hirshfeld Surface Analysis

  • Gerzon E. Delgado,
  • Jonathan Cisterna,
  • Jaime Llanos,
  • Ruth Pulido,
  • Nelson Naveas,
  • Pilar Narea,
  • Pilar Amo-Ochoa,
  • Félix Zamora,
  • Yasna León and
  • Iván Brito

This article discloses the synthesis of four new positional isomeric zwitterionic ligands exhibiting semi-flexible and flexible characteristics—n-pyridinium-1,2,3-triazole-4-carboxy-5-Acetate (n-PTCA), and n-methylpyridinium-1,2,3-triazole-4-ca...

  • Article
  • Open Access
8 Citations
5,290 Views
13 Pages

20 January 2017

Three novel zwitterionic coordination polymers, namely, {[Zn(HCbdcp)2]·H2O} (1), {[Mn(Cbdcp)]·3H2O} (2) and {[Cu2(Cbdcp)(HCbdcp)Cl·H2O]·2H2O} (3), Cbdcp = 3,5-dicarboxy-1-(4-carboxybenzyl)pyridin-1-ium, have been prepared by a hydrothermal method and...

  • Article
  • Open Access
12 Citations
4,990 Views
10 Pages

5 July 2017

Three new isostructural lanthanide coordination polymers {[Ln(L)2·2H2O]·Cl·4H2O}, Ln = La (LaL 1), Tb (TbL 2), Eu (EuL 3), L = 4-carboxy-1-(4-carboxybenzyl)pyridinium, have been synthesized under hydrothermal conditions and characterized by single cr...

  • Article
  • Open Access
1,246 Views
13 Pages

A Rare Thermochromic Zwitterionic Nickel (II) Complex of the Bulky Alpha Ligand 1,2-Bis-(di-tbutylphosphinomethyl)Benzene

  • Ian R. Butler,
  • Peter N. Horton,
  • Simon J. Coles,
  • William Clegg,
  • Kevin M. Fortune,
  • Michael G. B. Drew and
  • Kamil Suwada

The reaction of the bulky ligand 1,2-bis-(di-tert-butylphosphinomethyl)benzene, 1 with [Ni(DME)Cl2], 3, DME = 1,2-dimethoxyethane, at room temperature over extended periods, affords the new blue Zwitterionic complex [2-(C6H4-CH2P(H)tBu2-1-(CH2PtBu2Ni...

  • Article
  • Open Access
3 Citations
2,156 Views
24 Pages

28 November 2023

Hemodialysis is a lifesaving treatment for end-stage renal disease (ESRD) that exploits semipermeable membranes to remove fluids and uremic toxins from ESRD patients. Polyethersulfone (PES) is the most common membrane that is currently used in Canadi...

  • Article
  • Open Access
9 Citations
3,492 Views
14 Pages

28 April 2021

A phosphate-substituted, zwitterionic berberine derivative was synthesized and its binding properties with duplex DNA and G4-DNA were studied using photometric, fluorimetric and polarimetric titrations and thermal DNA denaturation experiments. The li...

  • Review
  • Open Access
2 Citations
2,980 Views
17 Pages

Imidazol(in)ium-2-Thiocarboxylate Zwitterion Ligands: Structural Aspects in Coordination Complexes

  • David Elorriaga,
  • Blanca Parra-Cadenas,
  • Paula Pérez-Ramos,
  • Raquel G. Soengas,
  • Fernando Carrillo-Hermosilla and
  • Humberto Rodríguez-Solla

26 August 2023

Azolium-2-thiocarboxylate zwitterion ligands have emerged as a promising class of compounds in the field of coordination chemistry due to their unique structural features and versatile applications. These ligands are characterized by a positively cha...

  • Communication
  • Open Access
19 Citations
4,907 Views
10 Pages

A PAlP Pincer Ligand Bearing a 2-Diphenylphosphinophenoxy Backbone

  • Kazuhiko Semba,
  • Ikuya Fujii and
  • Yoshiaki Nakao

28 November 2019

A PAlP pincer ligand derived from 2-diphenylphosphino-6-isopropylphenol was synthesized. The Lewis acidity of the Al center of the ligand was evaluated with coordination of (O)PEt3. A zwitterionic rhodium-aluminum heterobimetallic complex bearing the...

  • Article
  • Open Access
697 Views
17 Pages

31 October 2025

Formamidinium lead bromide (FAPbBr3) quantum dots (QDs) have shown potential in light-emitting diodes (LEDs). However, their performance is constrained by surface defects and the limitations of charge transport. Zwitterionic ligands, owing to their t...

  • Article
  • Open Access
1 Citations
2,332 Views
14 Pages

Stabilization of 2-Pyridyltellurium(II) Derivatives by Oxidorhenium(V) Complexes

  • Felipe Dornelles da Silva,
  • Maximilian Roca Jungfer,
  • Adelheid Hagenbach,
  • Ernesto Schulz Lang and
  • Ulrich Abram

18 April 2023

Zwitterionic compounds such as pyridine-containing tellurenyl compounds are interesting building blocks for heterometallic assemblies. They can act as ambiphilic donor/acceptors as is shown by the products of reactions of the zwitterions HpyTeCl2 or...

  • Article
  • Open Access
4 Citations
3,318 Views
10 Pages

Multifunctional Viologen-Derived Supramolecular Network with Photo/Vapochromic and Proton Conduction Properties

  • Chuanqi Zhang,
  • Huaizhong Shi,
  • Chenghui Zhang,
  • Yan Yan,
  • Zhiqiang Liang and
  • Jiyang Li

14 October 2021

A supramolecular network [H4bdcbpy(NO3)2·H2O] (H4bdcbpy = 1,1′-Bis(3,5-dicarboxybenzyl)-4,4′-bipyridinium) (1) was prepared by a zwitterionic viologen carboxylate ligand in hydrothermal synthesis conditions. The as-synthesized (1) has been well chara...

  • Article
  • Open Access
6 Citations
2,308 Views
30 Pages

Novel C3-Methylene-Bridged Indole Derivatives with and without Substituents at N1: The Influence of Substituents on Their Hemolytic, Cytoprotective, and Antimicrobial Activity

  • Karolina Babijczuk,
  • Natalia Berdzik,
  • Damian Nowak,
  • Beata Warżajtis,
  • Urszula Rychlewska,
  • Justyna Starzyk,
  • Lucyna Mrówczyńska and
  • Beata Jasiewicz

Alkaloids are natural compounds useful as scaffolds for discovering new bioactive molecules. This study utilized alkaloid gramine to synthesize two groups of C3-substituted indole derivatives, which were either functionalized at N1 or not. The compou...

  • Article
  • Open Access
5 Citations
5,047 Views
14 Pages

High-Throughput Synthesis of Pillared-Layered Magnesium Tetraphosphonate Coordination Polymers: Framework Interconversions and Proton Conductivity Studies

  • Rosario M.P. Colodrero,
  • Inés R. Salcedo,
  • Montse Bazaga-García,
  • Eleni Barouda,
  • Maria Papadaki,
  • Konstantinos E. Papathanasiou,
  • Daniel Hernández-Alonso,
  • Jordi Rius,
  • Miguel A.G. Aranda and
  • Aurelio Cabeza
  • + 3 authors

11 September 2018

Novel pillared-layered framework materials were synthesized by high-throughput or microwave-assisted methodology that contain Mg2+ and the zwitterionic linker HDTMP (hexamethylenediamine-N,N,N′,N′-tetrakis(methylenephosphonic acid)). Thre...

  • Communication
  • Open Access
4 Citations
1,869 Views
8 Pages

12 September 2023

[Sn(OSO3)2(TPyHP)](HSO4)2∙8H2O (1), an ionic Sn(IV)-porphyrin complex, was prepared by reacting [Sn(OH2)2TPyP] with dilute sulfuric acid. X-ray structural analysis revealed that the zwitterionic [Sn(OSO3)2TPyHP]2+ species consists of two anioni...

  • Article
  • Open Access
53 Citations
10,227 Views
9 Pages

Studies On Some Acid Divalent-Metal Nitrilotriacetate Complexes

  • E. R. Souaya,
  • W. G. Hanna,
  • E. H. Ismail and
  • N. E. Milad

31 October 2000

IR and 1H-NMR studies on nitrilotriacetic acid (H3NTA) suggest that the acid exists in the zwitterion form, which allows the existence of intermolecular hydrogen bonding. A tetrahedral structure is established for eleven (1:1) anhydrous acid-metal (I...

  • Article
  • Open Access
5 Citations
3,651 Views
19 Pages

Synthesis and Characterization of a “Clickable” PBR28 TSPO-Selective Ligand Derivative Suitable for the Functionalization of Biodegradable Polymer Nanoparticles

  • Renato Auriemma,
  • Mattia Sponchioni,
  • Umberto Capasso Palmiero,
  • Giacomo Rossino,
  • Arianna Rossetti,
  • Andrea Marsala,
  • Simona Collina,
  • Alessandro Sacchetti,
  • Davide Moscatelli and
  • Marco Peviani

28 June 2021

Reactive microgliosis is a pathological hallmark that accompanies neuronal demise in many neurodegenerative diseases, ranging from acute brain/spinal cord injuries to chronic diseases, such as amyotrophic lateral sclerosis (ALS), Alzheimer’s disease...

  • Article
  • Open Access
14 Citations
4,913 Views
21 Pages

Solution Equilibrium Studies on Salicylidene Aminoguanidine Schiff Base Metal Complexes: Impact of the Hybridization with L-Proline on Stability, Redox Activity and Cytotoxicity

  • Orsolya Dömötör,
  • Nóra V. May,
  • G. Tamás Gál,
  • Gabriella Spengler,
  • Aliona Dobrova,
  • Vladimir B. Arion and
  • Éva A. Enyedy

22 March 2022

The proton dissociation processes of two tridentate salicylidene aminoguanidine Schiff bases (SISC, Pro-SISC-Me), the solution stability and electrochemical properties of their Cu(II), Fe(II) and Fe(III) complexes were characterized using pH-potentio...

  • Article
  • Open Access
13 Citations
7,295 Views
12 Pages

4 December 2015

Understanding how to controllably modulate the efficiency of energy transfer in Förster resonance energy transfer (FRET)-based assemblies is critical to their implementation as sensing modalities. This is particularly true for sensing assemblies that...

  • Article
  • Open Access
12 Citations
4,923 Views
21 Pages

Unsaturated and Benzannulated N-Heterocyclic Carbene Complexes of Titanium and Hafnium: Impact on Catalysts Structure and Performance in Copolymerization of Cyclohexene Oxide with CO2

  • Lakshmi Suresh,
  • Ralte Lalrempuia,
  • Jonas B. Ekeli,
  • Francis Gillis-D’Hamers,
  • Karl W. Törnroos,
  • Vidar R. Jensen and
  • Erwan Le Roux

23 September 2020

Tridentate, bis-phenolate N-heterocyclic carbenes (NHCs) are among the ligands giving the most selective and active group 4-based catalysts for the copolymerization of cyclohexene oxide (CHO) with CO2. In particular, ligands based on imidazolidin-2-y...

  • Article
  • Open Access
18 Citations
5,354 Views
20 Pages

24 May 2017

Triethylammonium salts of phosphinoferrocene amidosulfonates with electron-rich dialkyphosphino substituents, R2PfcCONHCH2SO3(HNEt3) (4ac), where fc = ferrocene-1,1′-diyl, and R = i-Pr (a), cyclohexyl (Cy; b), and t-butyl (c), were synthesized from...

  • Review
  • Open Access
21 Citations
7,491 Views
22 Pages

Oligonucleotides Isolation and Separation—A Review on Adsorbent Selection

  • Sylwia Studzińska,
  • Łukasz Nuckowski and
  • Bogusław Buszewski

23 August 2022

Oligonucleotides have many important applications, including as primers in polymerase chain reactions and probes for DNA sequencing. They are proposed as a diagnostic and prognostic tool for various diseases and therapeutics in antisense therapy. Acc...

  • Article
  • Open Access
3 Citations
2,915 Views
9 Pages

Novel Coordination Polymer of Cadmium (II) with L-Tryptophan

  • Agnieszka Czylkowska,
  • Małgorzata Szczesio,
  • Anna Pietrzak,
  • Anita Raducka and
  • Bartłomiej Rogalewicz

14 May 2020

A new cadmium (II) polymeric coordination compound with tryptophan (Trp) of general formula {[Cd(L-Trp)2(H2O)Cl]∙(Trp)∙(H2O)}n was synthesized. The monocrystals of the investigated complex were obtained using the method of slow evaporation. The cryst...

  • Article
  • Open Access
7 Citations
5,513 Views
20 Pages

Elaboration of Luminescent and Magnetic Hybrid Networks Based on Lanthanide Ions and Imidazolium Dicarboxylate Salts: Influence of the Synthesis Conditions

  • Pierre Farger,
  • Cédric Leuvrey,
  • Mathieu Gallart,
  • Pierre Gilliot,
  • Guillaume Rogez,
  • Pierre Rabu and
  • Emilie Delahaye

The syntheses and characterization of four new hybrid coordination networks based on lanthanide ions (Ln = Nd, Sm) and 1,3-carboxymethylimidazolium (L) salt in the presence of oxalic acid (H2ox) are reported. The influence of the synthesis parameters...

  • Communication
  • Open Access
5 Citations
9,283 Views
9 Pages

15 December 2018

Cetirizine is a zwitterionic second-generation antihistamine containing R- and S-enantiomers, levocetirizine, and (S)-cetirizine. Levocetirizine is known to have a higher affinity for the histamine H1 receptors than (S)-cetirizine; ligand-receptor do...

  • Article
  • Open Access
7 Citations
4,637 Views
18 Pages

30 October 2020

Activation of the cannabinoid CB1 receptor induces different cellular signaling cascades through coupling to different effector proteins (G-proteins and β-arrestins), triggering numerous therapeutic effects. Conformational changes and rearrangem...

  • Article
  • Open Access
13 Citations
5,051 Views
29 Pages

Mononuclear Lanthanide(III)-Salicylideneaniline Complexes: Synthetic, Structural, Spectroscopic, and Magnetic Studies

  • Ioannis Mylonas-Margaritis,
  • Diamantoula Maniaki,
  • Julia Mayans,
  • Laura Ciammaruchi,
  • Vlasoula Bekiari,
  • Catherine P. Raptopoulou,
  • Vassilis Psycharis,
  • Sotirios Christodoulou,
  • Albert Escuer and
  • Spyros P. Perlepes

The reactions of hydrated lanthanide(III) [Ln(III)] nitrates and salicylideneaniline (salanH) have provided access to two families of mononuclear complexes depending on the reaction solvent used. In MeCN, the products are [Ln(NO3)3(salanH)2(H2O)]&mid...

  • Article
  • Open Access
10 Citations
2,269 Views
11 Pages

28 July 2023

Halide lead perovskite has attracted increased attention due to its excellent optical properties. However, the poor stability of the halide lead perovskite nanocrystals has been a major obstacle to their application in biosensing. Here, we proposed a...

  • Article
  • Open Access
4 Citations
3,470 Views
18 Pages

Mechanochemical P-derivatization of 1,3,5-Triaza-7-Phosphaadamantane (PTA) and Silver-Based Coordination Polymers Obtained from the Resulting Phosphabetaines

  • Antal Udvardy,
  • Csenge Tamara Szolnoki,
  • Réka Gombos,
  • Gábor Papp,
  • Éva Kováts,
  • Ferenc Joó and
  • Ágnes Kathó

16 November 2020

We have described earlier that in aqueous solutions, the reaction of 1,3,5-triaza-7-phosphaadamantane (PTA) with maleic acid yielded a phosphonium-alkanoate zwitterion. The same reaction with 2-methylmaleic acid (citraconic acid) proceeded much slowe...

  • Feature Paper
  • Article
  • Open Access
14 Citations
4,075 Views
17 Pages

2-Aminobenzothiazole-Containing Copper(II) Complex as Catalyst in Click Chemistry: An Experimental and Theoretical Study

  • Lahoucine Bahsis,
  • Meryem Hrimla,
  • Hicham Ben El Ayouchia,
  • Hafid Anane,
  • Miguel Julve and
  • Salah-Eddine Stiriba

11 July 2020

The reaction of copper(II) acetate with the 2-aminobenzothiazole (abt) heterocycle affords the new copper(II) complex of formula [Cu(abt)2(OOCCH3)2] (1) in a straightforward manner. Compound 1 served as a precatalyst for azide/alkyne cycloaddition re...

  • Article
  • Open Access
3 Citations
3,916 Views
8 Pages

6 February 2021

Bilastine, a zwitterionic second-generation antihistamine containing a carboxyl group, has higher selectivity for H1 receptors than first-generation antihistamines. Ligand-receptor docking simulations have suggested that the electrostatic interaction...

  • Article
  • Open Access
24 Citations
5,749 Views
29 Pages

8-Hydroxyquinoline-Amino Acid Hybrids and Their Half-Sandwich Rh and Ru Complexes: Synthesis, Anticancer Activities, Solution Chemistry and Interaction with Biomolecules

  • Tamás Pivarcsik,
  • Orsolya Dömötör,
  • János P. Mészáros,
  • Nóra V. May,
  • Gabriella Spengler,
  • Oszkár Csuvik,
  • István Szatmári and
  • Éva A. Enyedy

19 October 2021

Solution chemical properties of two novel 8-hydroxyquinoline-D-proline and homo-proline hybrids were investigated along with their complex formation with [Rh(η5-C5Me5)(H2O)3]2+ and [Ru(η6-p-cymene)(H2O)3]2+ ions by pH-potentiometry, UV-visible spectr...

  • Review
  • Open Access
11 Citations
6,193 Views
36 Pages

There is continuous effort towards developing monolithic materials as solid supports for the separation, enrichment, and digestion of glycoproteins. The intention of this review is to discuss and summarize work reported in this area during the period...

  • Article
  • Open Access
2 Citations
1,601 Views
10 Pages

The efficacy of glioblastoma treatment is closely associated with complete tumor resection. However, conventional surgical techniques often result in incomplete removal, leading to poor prognosis. A major challenge is the accurate delineation of tumo...

  • Article
  • Open Access
10 Citations
3,490 Views
19 Pages

25 December 2022

Condensation of 2-hydroxybenzaldehyde (salicylaldehyde) or 2-hydroxy-1-naphthaldehyde with 2-ethylaniline yields the Schiff base compound of (E)-2-(((2-ethylphenyl)imino)methyl)phenol (HL1) or (E)-1-(((2-ethylphenyl)imino)methyl)naphthalen-2-ol (HL2)...

  • Article
  • Open Access
5 Citations
4,874 Views
12 Pages

10 March 2023

Produced water is a by-product of industrial operations, such as hydraulic fracturing for increased oil recovery, that causes environmental issues since it includes different metal ions (e.g., Li+, K+, Ni2+, Mg2+, etc.) that need to be extracted or c...

  • Review
  • Open Access
20 Citations
7,219 Views
28 Pages

Cesium Lead Iodide Perovskites: Optically Active Crystal Phase Stability to Surface Engineering

  • Yixi Wang,
  • Hairong Zhao,
  • Marek Piotrowski,
  • Xiao Han,
  • Zhongsheng Ge,
  • Lizhuang Dong,
  • Chengjie Wang,
  • Sowjanya Krishna Pinisetty,
  • Praveen Kumar Balguri and
  • Udayabhaskararao Thumu
  • + 1 author

15 August 2022

Among perovskites, the research on cesium lead iodides (CsPbI3) has attracted a large research community, owing to their all-inorganic nature and promising solar cell performance. Typically, the CsPbI3 solar cell devices are prepared at various heter...