AI Article Synopsis
- Intermolecular hydrogen bonds form due to the attraction between hydrogen and highly electronegative atoms, influencing materials' properties.
- A method was introduced that uses graphite and graphene to reduce glycerol's viscosity without altering its chemical properties.
- The study found that these nanomaterials disrupt the hydrogen bond network in glycerol, revealing their potential applications in lubrication technology.
Article Abstract
Intermolecular hydrogen bonds are formed through the electrostatic attraction between the hydrogen nucleus on a strong polar bond and high electronegative atom with an unshared pair of electrons and a partial negative charge. It affects the physical and chemical properties of substances. Based on this, we presented a physical method to modulate intermolecular hydrogen bonds for not changing the physical-chemical properties of materials. The graphite and graphene are added into the glycerol, respectively, by being used as a viscosity reducer in this paper. The samples are characterized by Raman and 1H-nuclear magnetic resonance. Results show that intermolecular hydrogen bonds are adjusted by graphite or graphene. The rheology of glycerol is reduced to varying degrees. Transmission electron microscopes and computer simulation show that the spatial limiting action of graphite or graphene is the main cause of breaking the intermolecular hydrogen bond network structure. We hope this work reveals the potential interplay between nanomaterials and hydroxyl liquids, which will contribute to the field of solid-liquid coupling lubrication.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8437030 | PMC |
| http://dx.doi.org/10.1098/rsos.210565 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Determining the Recruiting Rate of Spontaneously Blinking Rhodamines by Density Functional Calculations.
J Phys Chem A
January 2025
School of Chemistry and Chemical Engineering, Hainan University, Haikou 570228, China.
A recruiting rate () of 0.1-5 s has been proposed as the criterion for super-resolution spontaneously blinking rhodamines. Accurate prediction of the recruiting rate () of rhodamines is very important for developing spontaneously blinking rhodamines.
View Article and Find Full Text PDFLigand-Induced Intramolecular Cuprophilic and Argentophilic Interactions in Bimetallic Cu(I) and Ag(I) Phosphine Complexes and the Assessment of Their Antityrosinase and Antibacterial Effects.
Inorg Chem
January 2025
Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, 3012 Bern, Switzerland.
Binuclear silver(I) and copper(I) complexes, and , with bridging diphenylphosphine ligands were prepared. In , the silver(I) center is located inside a trigonal plane composed of three phosphorus donors from three separate and bridging dppm ligands. The fourth coordination site is filled with neighboring silver(I) ions.
View Article and Find Full Text PDFEffect of dynamic high pressure microfluidization on pasting, gelling and rheological properties of starch composite with β-glucan both from highland barley.
Int J Biol Macromol
January 2025
Institute of Food and Nutrition Development, Ministry of Agriculture and Rural Affairs, Beijing 100081, China. Electronic address:
The objective of this study was to investigate the effect of β-glucan on the pasting, gelling, rheological properties, and multi-level structures of the highland barley (HB) starch after dynamic high pressure microfluidization (DHPM) treatment, exploring the inhibition mechanisms of starch retrogradation by endogenous β-glucan after DHPM. DHPM treatment led to a decrease in the viscosity (K values from 161.1 to 54.
View Article and Find Full Text PDFSynthesis, structure, Hirshfeld surface analysis, and molecular docking studies of the cocrystal between the Cu(II) complex of salicylic acid and uncoordinated piracetam.
Turk J Chem
October 2024
Supramolecular Compounds Division, Institute of General and Inorganic Chemistry, Uzbekistan Academy of Sciences, Tashkent, Uzbekistan.
The cocrystal (or supramolecular complex) between the Cu(II) complex of salicylic acid and uncoordinated piracetam has been synthesized. Its structure is characterized by elemental analysis, FT-IR, UV-Vis spectroscopy, and X-ray crystallography. Spectroscopic methods confirm the formation of the metal complex, while X-ray crystallography establishes the molecular and crystal structure of the obtained compound.
View Article and Find Full Text PDFHydrogen Bond "Double-Edged Sword Effect" on Organic Room-Temperature Phosphorescence Properties: A Theoretical Perspective.
J Phys Chem A
January 2025
Shandong Province Key Laboratory of Medical Physics and Image Processing Technology, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China.
The strategy of designing efficient room-temperature phosphorescence (RTP) emitters based on hydrogen bond interactions has attracted great attention in recent years. However, the regulation mechanism of the hydrogen bond on the RTP property remains unclear, and corresponding theoretical investigations are highly desired. Herein, the structure-property relationship and the internal mechanism of the hydrogen bond effect in regulating the RTP property are studied through the combination of quantum mechanics and molecular mechanics methods (QM/MM) coupled with the thermal vibration correlation function method.
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!