Supramolecular 2D Monolayered Nanosheets Constructed by Using Synergy of Non-covalent Interactions

2021 ◽  
Author(s):  
Jing Zhang ◽  
Shuaiwei Qi ◽  
Chenyang Zhang ◽  
Wenzhe Wang ◽  
Qinwen Ding ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Noncovalent Interactions ◽  
Supramolecular Assemblies ◽  
Rational Approach ◽  
Two Dimensional ◽  
Non Covalent Interactions ◽  
Covalent Interactions

Here, a straightforward and rational approach to construct supramolecular assemblies with ordered nanostructure in a two-dimensional arrangement is reported. Taking advantage of the synergistic effect of multiple noncovalent interactions (hydrogen...

scholarly journals Insights Into the Mechanism of MCT8 Oligomerization

2020 ◽  
Vol 4 (8) ◽  
Author(s):  
Stefan Groeneweg ◽  
Amanda van den Berge ◽  
Elaine C Lima de Souza ◽  
Marcel E Meima ◽  
Robin P Peeters ◽  
...  
Keyword(s):  
Protein Complexes ◽  
Noncovalent Interactions ◽  
Monocarboxylate Transporter ◽  
Substantial Part ◽  
Extracellular Loop ◽  
Motor Disability ◽  
Lithium Dodecyl Sulfate ◽  
Non Covalent Interactions ◽  
Mct8 Deficiency ◽  
Covalent Interactions

Abstract Mutations in the thyroid hormone transporter monocarboxylate transporter 8 (MCT8) result in MCT8 deficiency, characterized by severe intellectual and motor disability. The MCT8 protein is predicted to have 12 transmembrane domains (TMDs) and is expressed as monomers, homodimers, and homo-oligomers. This study aimed to delineate the mechanism of MCT8 oligomerization. Coimmunoprecipitation studies demonstrated that lithium dodecyl sulfate effectively disrupts MCT8 protein complexes, indicating the involvement of non-covalent interactions. Successive C-terminal truncations of the MCT8 protein altered the oligomerization pattern only if introduced in the N-terminal half of the protein (TMD1-6). The truncation at extracellular loop 1 (E206X) still allowed homodimerization, but completely abrogated homo-oligomerization, whereas both were preserved by the C231X mutant (at TMD2), suggesting that the minimally required oligomerization sites are located proximal of Cys231. However, mutant constructs lacking the intracellular N-terminus or TMD1 and 2 were still capable to form homo-oligomers. Therefore, other domains distal of Cys231 are also likely to be involved in the formation of extensive multidomain interactions. This hypothesis was supported by structural modeling. Despite multiple approaches, MCT8 oligomerization could not be fully abrogated unless a substantial part of the protein was removed, precluding detailed studies into its functional role. Together, our findings suggest that MCT8 oligomerization involves extensive noncovalent interactions between the N-terminal halves of MCT8 proteins. Most mutations identified in patients with MCT8 deficiency have only minor effects on MCT8 oligomerization and, thus, impaired oligomerization does not appear to be an important pathogenic mechanism.

Non-Covalent Interactions in Supramolecular Assemblies Investigated with Electron Spectroscopies

ChemPhysChem ◽  
2009 ◽  
Vol 10 (6) ◽  
pp. 896-900 ◽  
Author(s):  
Miguel Ruiz-Osés ◽  
Dimas G. de Oteyza ◽  
Isabel Fernández-Torrente ◽  
Nora Gonzalez-Lakunza ◽  
Phillipp M. Schmidt-Weber ◽  
...  
Keyword(s):  
Supramolecular Assemblies ◽  
Non Covalent Interactions ◽  
Covalent Interactions

Photophysical properties of di-Schiff bases: evaluating the synergistic effect of non-covalent interactions and alkyl spacers in enhanced emissions of solids

RSC Advances ◽  
2016 ◽  
Vol 6 (63) ◽  
pp. 57780-57792 ◽  
Author(s):  
Moyna Das ◽  
Fayaz Baig ◽  
Madhushree Sarkar
Keyword(s):  
Solid State ◽  
Synergistic Effect ◽  
Schiff Bases ◽  
Photophysical Properties ◽  
Light Emitting ◽  
Emission Properties ◽  
Flexible Spacer ◽  
Non Covalent Interactions ◽  
Covalent Interactions

Di-Schiff bases with alkyl spacer (ethyl, butyl and hexyl) showed enhanced light emitting properties in solid state, while quenching was observed for di-Schiff bases with hydrazine spacer. Packing of the molecules via non covalent interactions along with the flexible spacer played the role in dictating the emission properties.

Color-tunable phosphorescence of 1,10-phenanthrolines by 4,7-methyl/-diphenyl/-dichloro substituents in cocrystals assembledviabifurcated C—I...N halogen bonds using 1,4-diiodotetrafluorobenzene as a bonding donor

2017 ◽  
Vol 73 (2) ◽  
pp. 247-254 ◽  
Author(s):  
Rui Liu ◽  
Yuan Jun Gao ◽  
Wei Jun Jin
Keyword(s):  
Noncovalent Interactions ◽  
Halogen Bonding ◽  
Luminescent Properties ◽  
Halogen Bonds ◽  
X Ray Diffraction ◽  
X Ray ◽  
Color Tunable ◽  
Non Covalent Interactions ◽  
The Impact ◽  
Covalent Interactions

Single-crystal X-ray diffraction reveals a series of phosphorescent cocrystals which were assembled by 1,4-diiodotetrafluorobenzene (1,4-DITFB) and either 4,7-dimethyl-1,10-phenanthroline (DMPhe), 4,7-diphenyl-1,10-phenanthroline (DPPhe) or 4,7-dichloro-1,10-phenanthroline (DClPhe)viaC—I...N halogen bonding. These cocrystals, labeled (1), (2) and (3), respectively, are phosphorescent and a distinct change in phosphorescent color can be observed from orange–yellow, green to yellow–green, with well defined vibrational band maxima at 587, 520 and 611 nm for (1), (2) and (3). Based on the dependence of halogen bonding in sites and strength, we discussed the impact of substituents with different electron-withdrawing effects and steric hindrance on intermolecular noncovalent interactions and phosphorescence. The method of inducing and modulating phosphorescence by halogen bonding and other weak non-covalent interactions through changing the substituent groups of molecules should be significant in both theory and the application of optical function materials with predictable and modulated luminescent properties.

scholarly journals A combined experimental and computational study on supramolecular assemblies in hetero-tetranuclear nickel(ii)–cadmium(ii) complexes with N2O4-donor compartmental Schiff bases

2016 ◽  
Vol 45 (38) ◽  
pp. 15048-15059 ◽  
Author(s):  
Sourav Roy ◽  
Anik Bhattacharyya ◽  
Sourav Purkait ◽  
Antonio Bauzá ◽  
Antonio Frontera ◽  
...  
Keyword(s):  
Schiff Bases ◽  
Computational Study ◽  
Supramolecular Assembly ◽  
Supramolecular Assemblies ◽  
Non Covalent Interactions ◽  
Covalent Interactions

The contribution of various non-covalent interactions in the supramolecular assembly of two new hetero-polynuclear nickel(ii)–cadmium(ii) complexes with salicylidine Schiff bases were estimated.

A combined experimental and computational study of supramolecular assemblies in ternary copper(ii) complexes with a tetradentate N4donor Schiff base and halides

RSC Advances ◽  
2014 ◽  
Vol 4 (102) ◽  
pp. 58643-58651 ◽  
Author(s):  
Anik Bhattacharyya ◽  
Prasanta Kumar Bhaumik ◽  
Antonio Bauzá ◽  
Partha Pratim Jana ◽  
Antonio Frontera ◽  
...  
Keyword(s):  
Schiff Base ◽  
Dft Calculations ◽  
Computational Study ◽  
Supramolecular Assemblies ◽  
Schiff Base Complexes ◽  
Molecular Networks ◽  
Non Covalent Interactions ◽  
Covalent Interactions

Three new copper(ii) Schiff base complexes have been prepared and characterized. DFT calculations were employed to estimate the contribution of different non-covalent interactions in the extended supra-molecular networks.

scholarly journals Catalytic reductive deoxygenation of esters to ethers driven by hydrosilane activation through non-covalent interactions with a fluorinated borate salt

2020 ◽  
Vol 10 (14) ◽  
pp. 4586-4592
Author(s):  
Vincent Rysak ◽  
Ruchi Dixit ◽  
Xavier Trivelli ◽  
Nicolas Merle ◽  
Francine Agbossou-Niedercorn ◽  
...  
Keyword(s):  
Reaction Mechanism ◽  
Noncovalent Interactions ◽  
Theoretical Studies ◽  
Non Covalent Interactions ◽  
Experimental And Theoretical Studies ◽  
Covalent Interactions

A fluorinated borate BArF salt catalyses the reductive deoxygenation of esters to ethers by using hydrosilanes. Experimental and theoretical studies highlight the role of noncovalent interactions in the reaction mechanism.

scholarly journals Disclosing the multi-faceted world of weakly interacting inorganic systems by means of NMR spectroscopy

2016 ◽  
Vol 45 (7) ◽  
pp. 2785-2790 ◽  
Author(s):  
Luca Rocchigiani ◽  
Alceo Macchioni
Keyword(s):  
Nmr Spectroscopy ◽  
Intermolecular Forces ◽  
Supramolecular Assemblies ◽  
Inorganic Systems ◽  
Weakly Interacting ◽  
Non Covalent Interactions ◽  
Covalent Interactions

The potential of NMR spectroscopy to investigate inorganic systems whose structure and reactivity is affected by non-covalent interactions is described; supramolecular assemblies based on relatively unusual intermolecular forces or on more classical ones, still rather unexplored in solution, are considered.

Multiple C-H⋯anion and N-H⋯anion Hydrogen Bond Directed Two-Dimensional Crystalline Nanosheet with Precise Distance Control of Surface Charges for Enhanced Capture DNA

Soft Matter ◽  
2021 ◽  
Author(s):  
Laicheng Zhou ◽  
Ran He ◽  
Yang Qin ◽  
Yi-Lin Wu ◽  
Li Jiang ◽  
...  
Keyword(s):  
Hydrogen Bond ◽  
Self Assembly ◽  
Two Dimensional ◽  
Surface Charges ◽  
Distance Control ◽  
Non Covalent Interactions ◽  
Covalent Interactions

Utilizing combined non-covalent interactions and introducing anions as structure-directing factors to build oriented self-assembly and 2D crystalline nanosheet superstructures with precise distance control of surface charges in competitive aqueous solvents...

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