Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
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
Tuning the dimensionality of functional thiazolo[5,4-]thiazole based supramolecular polymers competitive interactions.
Chem Sci
August 2025
Department of Chemistry, Indian Institute of Technology Bombay Powai Mumbai - 400076 India
The supramolecular organization of functional molecules at the mesoscopic level influences their material properties. Typically, planar π-conjugated (disc- or linear-shaped) molecules tend to undergo one-dimensional (1D) stacking, whereas two-dimensional (2D) organization from such building blocks is seldom observed in spite of their technological potential. Herein, we rationally achieve both 1D and 2D organizations from a single planar, π-conjugated molecular system competitive interactions.
View Article and Find Full Text PDFNickel-Catalyzed Cross-Dehydrogenative Coupling of Aldehydes and Alkenes toward Skipped Enones.
J Am Chem Soc
September 2025
Department of Chemistry and Biochemistry, The University of Texas at Dallas, Richardson, Texas 75080-3021, United States.
The direct transformation of C-H bonds into C-C bonds via cross-dehydrogenative coupling (CDC) represents a powerful strategy in synthetic chemistry, enabling streamlined bond construction without the need for prefunctionalized substrates. While traditional CDC approaches rely on polar mechanisms and preactivation of one of the C-H partners, recent advances have introduced radical-based strategies that employ a hydrogen atom transfer (HAT) approach to access carbon-centered radicals from unactivated substrates. Herein, we report a nickel-catalyzed CDC reaction between aldehydes and alkenes for the synthesis of skipped enones, leveraging aryl radicals as intermolecular HAT agents.
View Article and Find Full Text PDFSpecific interactions and mechanism of association in highly viscous aldehyde 3-phenylpropanal.
J Chem Phys
September 2025
August Chełkowski Institute of Physics, University of Silesia in Katowice, 75 Pułku Piechoty 1, 41-500 Chorzów, Poland.
In this paper, we investigated the thermal, dynamical, and structural properties, as well as association patterns, in 3-phenyl-1-propanol (3P1Pol) and 3-phenyl-1-propanal (3P1Pal), with special attention paid to the latter compound. Both systems turned out to be good glass formers, differing by 17 K in the glass transition temperature, which indicated a strong change in the self-assembly pattern. This supposition was further confirmed by the analysis of dielectric spectra, where, apart from the α-relaxation, also a unique Debye (D)-mode, being a fingerprint of the self-association, characterized by different dynamical properties (dielectric strength, timescale separation from the α-process), was detected in both samples.
View Article and Find Full Text PDFMeasurement of protein non-covalent interactions in buffer and cells.
Magn Reson Lett
May 2025
Qingdao New Energy Shandong Laboratory, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China.
Nuclear magnetic resonance (NMR) serves as a powerful tool for studying both the structure and dynamics of proteins. The NOE method, alongside residual dipolar; coupling, paramagnetic effects, -coupling, and other related techniques, has reached a level of maturity that allows for the determination of protein structures. Furthermore, NMR relaxation methods prove to be highly effective in characterizing protein dynamics across various timescales.
View Article and Find Full Text PDFSynthesis and structure of di-aqua-bis-(nicotinamide-κ)bis-(nitrato-κ ,')calcium(II).
Acta Crystallogr E Crystallogr Commun
September 2025
Institute of Bioorganic Chemistry, Academy of Sciences of Uzbekistan, 100125, M., Ulugbek Str 83, Tashkent, Uzbekistan.
The title complex, [Ca(NO)(CHNO)(HO)], crystallizes with an eight-coordinate Ca ion in a distorted trigonal-dodeca-hedral coordination environment. The metal ion is coordinated to two nicotinamide ligands their carbonyl O atoms, two bidentate nitrate anions and two water mol-ecules. The nicotinamide ligands adopt a nearly geometry, while the nitrate anions and aqua ligands are arranged in a pseudo- fashion.
View Article and Find Full Text PDF