The solvation of the ruthenium(II) tris(bipyridine) ion ([Ru(bpy)3](2+)) is investigated with molecular dynamics simulations of lithium halide solutions in polar solvents. The anion distribution around the [Ru(bpy)3](2+) complex exhibits a strong solvent dependence. In aqueous solution, the iodide ion forms a solvent shared complex with [Ru(bpy)3](2+), but not in the other solvents. Between Cl(-) and [Ru(bpy)3](2+), the strong hydration of the chloride ion results in a solvent separated complex where more than one solvent molecule separates the anion from the metal center. Hence, tailored solvation properties in electrolytes is a route to influence ion-ion interactions and related electron transfer processes.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4714994 | PMC |
| http://dx.doi.org/10.1063/1.4939898 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Tetraphenylethene-Based Covalent Organic Polymers with Aggregation-Induced Electrochemiluminescence for Highly Sensitive Bacterial Biosensors.
Anal Chem
November 2024
State Key Laboratory of Organ Failure Research, National Clinical Research Center for Kidney Disease, Guangdong Provincial Institute of Nephrology, Guangdong Provincial Key Laboratory of Renal Failure Research, Guangdong Provincial Clinical Research Center for Kidney Disease, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
Article Synopsis
- Tetraphenylethene (TPE) is a compound with significant applications in creating fluorescent nanomaterials and biosensors, but challenges remain in making TPE aggregates that exhibit strong fluorescence and electrochemiluminescence.* -
- This study presents a highly sensitive bacterial ECL biosensor developed from TPE-based covalent organic polymer nanoparticles, which were synthesized using a straightforward Menschutkin reaction with specific cross-linking agents.* -
- The resulting biosensor demonstrated exceptional sensitivity (0.19 CFU mL detection limit), a wide linear detection range, and impressive ECL efficiency, significantly enhancing its potential for large-scale detection of harmful bacteria.*
Au Nanoparticles-Trisbipyridine Ruthenium(II) Nanoaggregates as Signal-Amplifying SERS Tags for Immunoassay of cTnI.
ACS Appl Mater Interfaces
November 2024
MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China.
Acute myocardial infarction (AMI) is one of the leading causes of human mortality worldwide. In the early stages of AMI, the patient's electrocardiogram (ECG) may not change, so the fast, sensitive, and accurate detection of the specific biomarker of cardiac troponin I (cTnI) is of great importance in the early diagnosis of AMI. In this work, for the first time, electrostatic nanoaggregates of negatively charged Au nanoparticles and positively charged trisbipyridine ruthenium(II) ions (i.
View Article and Find Full Text PDFReusable fluorescence nanoprobe based on DNA-functionalized metal-organic framework for ratiometric detection of mercury (II) ions.
Mikrochim Acta
October 2024
Key Laboratory of Research and Utilization of Ethnomedicinal Plant Resources of Hunan Province, College of Biological and Food Engineering, Huaihua University, Huaihua, 418008, P. R. China.
A reusable fluorescent nanoprobe was developed using DNA-functionalized metal-organic framework (MOF) for ratiometric detection of Hg. We utilized a zirconium-based MOF (UiO-66) to encapsulate tris(bipyridine) ruthenium(II) chloride (Ru(bpy)), resulting in Ru(bpy)@UiO-66 (RU) with red fluorescence. The unsaturated metal sites in UiO-66 facilitate the attachment of thymine-rich single-strand DNA (T-ssDNA) through Zr-O-P bond, producing T-ssDNA-functionalized RU complex (RUT).
View Article and Find Full Text PDFSulfonic Acid-Functionalized Tetraphenylethylene-Amplified Electrochemiluminescence by Regulating π-π Interaction.
Anal Chem
July 2024
Pingyuan Laboratory, College of Chemistry, Zhengzhou University, Zhengzhou 450000, China.
The electrochemiluminescence (ECL) effectiveness of the tris(bipyridine) ruthenium(II) (Ru(bpy)) system is hampered by aggregation-caused quenching (ACQ) in optoelectronic systems as a result of π-π accumulation of the aromatic ring structure. In this work, a negatively charged tetraphenylvinyl molecule (TPE-2SONa, TPE-4SONa) was synthesized to modify the electrode interface, and the π-π accumulation between Ru(bpy) molecules was transformed into the π-π interaction between Ru(bpy) and TPE molecules. Interestingly, the ECL signal intensity of the Ru(bpy)-tripropylamine (TPA) system in the presence of TPE-2SONa was increased by about 15 times due to the π-π action and electrostatic action.
View Article and Find Full Text PDFInterfacial Characterization of Ruthenium-Based Amphiphilic Photosensitizers.
Langmuir
August 2022
Leiden University, Leiden Institute of Chemistry, Einsteinweg 55, 2333 CC Leiden, The Netherlands.
Nonreactive surfactant molecules have long been used and characterized for a wide range of applications in industries, life science, and everyday life. Recently, new types of functional amphiphilic molecules have emerged that bear another function, for example, a light-absorbing action, or catalytic properties. However, the surfactant properties of these molecules remain to date essentially unknown.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!