Corrigendum to “Red/blue shifting hydrogen bonds in acetonitrile - Dimethyl sulphoxide solutions: FTIR and theoretical studies” [J. Mol. Struct. 1139 (2017) 196–201]

Kannan, P.; Karthick, N.; Mahendraprabu, A.; Shanmugam, Ramasamy; Elangovan, A.; Arivazhagan, G.

doi:10.1016/j.molstruc.2017.08.045

Cited by 8 publications

(7 citation statements)

References 3 publications

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“…The redshift of the hydroxyl absorption peak occurred, because the hydrogen bond formed between the hydroxyl group of the PVA molecule and the water molecule reduced the overall electron cloud density, resulting in equal energy values. [33,34] To further verify the formation of hydrogen bonds between PVA molecules and water molecules, the solid-state 13 C-NMR ( Figure 1c) of the PVA film showed that when the PVA film absorbed water, the chemical shift of the methylene carbon of the PVA molecule moved from 100.575 to 99.699 ppm, indicating that the chemical environment of the methylene carbon had changed. Since the only difference between the two films is the difference in water content, and the presence of free water does not affect the chemical shift of carbon, therefore, it can be inferred that the hydrogen bond formed between the hydroxyl group on the methylene group of the PVA molecule and the water molecule caused the chemical environment of the methylene group to change, thereby proving that the hydrogen bond was formed between the PVA molecule and the water molecule.…”

Section: Resultsmentioning

confidence: 99%

New Hydrogen Bonding Enhanced Polyvinyl Alcohol Based Self‐Charged Medical Mask with Superior Charge Retention and Moisture Resistance Performances

Wang

Feng

Zheng

et al. 2021

Adv Funct Materials

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The water vapor exhaled by the human body can severely accelerate the charge dissipation of a polypropylene (PP)-based medical mask, thereby reducing the electrostatic adsorption efficiency to cause infection. To solve this problem, a new type of polyvinyl alcohol (PVA)-based medical mask through electrostatic spinning to replace the PP melt-blown layer, which has self-charging and charge retention performance in a high humidity environment is fabricated. The PVA is rich in hydroxyl groups, which can spontaneously form hydrogen bonds with water vapor molecules exhaled by the human body and fix water molecules to increase the triboelectricity. By analyzing the electrical output performance of PVA-based triboelectric nanogenerator (TENG), it is shown that the short circuit current is ≈26 times larger than that of PP-based TENG in 95% relative humidity (RH). Moreover, PVA has a strong charge storage capacity and self-charging performance, as determined by hand touching under a high humidity environment. The static dissipation rate of PVA is 1.4 times lower than that of PP at a 95% RH. In comparison with PP-based medical masks, PVAbased medical masks have a high humidity resistance and self-charging performance and can be easily recharged in situ by hand slapping without taking it off for many times.

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Section: Resultsmentioning

confidence: 99%

New Hydrogen Bonding Enhanced Polyvinyl Alcohol Based Self‐Charged Medical Mask with Superior Charge Retention and Moisture Resistance Performances

Wang

Feng

Zheng

et al. 2021

Adv Funct Materials

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“…However, only one work 39 compared structures of Me 2 SO and MeCN taken alone; the attempt was also made to identify structures of the heteroleptic {MeCN• Me 2 SO} associates in the binary solutions. Theoretical and FTIR studies 39 (although with some omissions recognized by the authors 40 ) demonstrated that neat Me 2 SO or MeCN tended to form the dimers {Me 2 SO} 2 or {MeCN} 2 , respectively. However, these dimers or the heteroleptic {MeCN•Me 2 SO} species were not detected in the dimethyl sulfoxide−acetonitrile mixtures.…”

Section: Introductionmentioning

confidence: 99%

Noncovalent Sulfoxide–Nitrile Coupling Involving Four-Center Heteroleptic Dipole–Dipole Interactions between the Sulfinyl and Nitrile Groups

Ivanov

Baykov

Novikov

et al. 2020

Crystal Growth & Design

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The 4-X-5-nitro substituted phthalodinitriles (X = Br 1, I 2) were crystallized from Me2SO solutions affording crystalline adducts (1–2)·Me2SO, which were characterized by X-ray crystallography at various temperatures (>40 K). The two adducts are isomorphic and exhibit in their XRD structures the heteroleptic dipole–dipole four-center contacts between the S=O and C≡N functionalities. Results of DFT calculations within the “molecular” approach based on the experimental X-ray geometries of (1–2)·Me2SO followed by the topological analysis of the electron density distribution (QTAIM analysis) at the M06-2X/x2c-TZVPPall level of theory confirm the presence of sulfoxide–nitrile heteroleptic dipole–dipole interactions in the solid state (their estimated strength does not exceed 7 kcal/mol). DFT calculations for 1·Me2SO were also performed in both the periodic and “molecular” models at the DFT M06 level of theory using DZVP and pob-TZVP bases; the results of the electron density topological analysis are similar in both models.

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“…[ 25 ] In the spectrum of Ti 3 C 2 T x ‐ACN, the peak at 2253 cm –1 is assigned to the CN bond. [ 26 ] The peak of Ti 3 C 2 T x ‐DMAC at 2143 cm –1 is ascribed to the CN bonding. [ 27 ] Compared with the FTIR spectroscopy of the multi‐layered Ti 3 C 2 T x sample (Figure S3, Supporting Information), the existence of these characteristic bonds proves that various small molecules are embedded in the layers of Ti 3 C 2 T x nanosheets successfully.…”

Section: Resultsmentioning

confidence: 99%

Intercalation of Small Organic Molecules into Ti₃C₂T_x MXene Cathodes for Flexible High‐Volume‐Capacitance Zn‐Ion Microsupercapacitor

Liu

et al. 2022

Adv Materials Technologies

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2D MXene materials based flexible miniaturized energy storage devices, such as the battery, [4,5] microsupercapacitors (MSCs), [6,7] hybrid metal-ion MSC, [8,9] are being extensively explored owing to their outstanding electrical conductivity, excellent mechanical stability, and versatile chemistry. [10] Considering MXene-based flexible miniaturized MSCs catering to integrated wearable electronics, the strong security, long cycling, and high energy density should be satisfied simultaneously. The emergence of hybrid multivalent metal cations Zn 2+ MSC using MXene cathodes fits well to the required conditions due to the co-contribution of both capacitive-type ion adsorption or fast surface redox reactions and diffusioncontrolled Faradic reactions originating from SCs and battery, respectively. [11] Moreover, the low cost, abundant sources, high safety, and eco-friendly features of Zn as compared to other alkaline metal ions like Li + , Na + , K + , Ca 2+ , and Mg 2+ enable the hybrid Zn-ion MSCs to be widely investigated. [12] Intercalation and delamination are necessary processes to obtain 2D MXene materials, [13] in which the MXene' interlayers will accommodate various ions and small organic molecules, resulting in adjustable interlayer spacing and unique properties. [14] The interlayer space usually affects the metal ion shuttles, larger space between MXene layers leads to the fast and easy diffusion of metal ions and helps achieve advanced electrochemical performance, which is particularly evident in metal ions with large radius. [15] Zn ion falls right into the alkaline metal ions with a large radius, almost twice as extensive as that of Li + (0.76 Å). Therefore, the high-performance MXene cathode-based Zn-ion MSC depends primarily on the appropriate selection of intercalators for MXene. In addition, the suitable intercalations could improve the high dispersion of MXene materials, which benefits the fabrication of MSC devices and reduce the resistance of the assembled Zn-ion MSC.Aimed at finding appropriate intercalators to achieve high-performance MXene cathodes based Zn-ion MSC, we delaminated 2D Ti 3 C 2 T x MXene using N,N-dimethylacetamide (DMAC) containing amide group, acetonitrile (ACN) containing cyanide group, Dimethyl sulfoxide (DMSO) containing sulfinyl group, N,N-dimethylformamide (DMF) containing The delamination of 2D Ti 3 C 2 T x MXene endows the injection of various ions and small organic molecules into its layers, thus leading to a tunable distance between layers and adjustable electrochemical properties. A suitable selection of intercalators needs to be considered according to the relevant metal-ionbased energy storage device because of the different radii of metal ions such as Li + , Na + , Mg 2+ Zn 2+ , etc. Herein, the intercalation of N,N-dimethylacetamide (DMAC), acetonitrile (ACN), dimethyl sulfoxide (DMSO), LiCl (H 2 O) into Ti 3 C 2 T x cathodes and their electrochemical performance comparisons by fabricating Zn-ion microsupercapacitors (MSCs) is reported. Studies found that an increa...

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Corrigendum to “Red/blue shifting hydrogen bonds in acetonitrile - Dimethyl sulphoxide solutions: FTIR and theoretical studies” [J. Mol. Struct. 1139 (2017) 196–201]

Cited by 8 publications

References 3 publications

New Hydrogen Bonding Enhanced Polyvinyl Alcohol Based Self‐Charged Medical Mask with Superior Charge Retention and Moisture Resistance Performances

New Hydrogen Bonding Enhanced Polyvinyl Alcohol Based Self‐Charged Medical Mask with Superior Charge Retention and Moisture Resistance Performances

Noncovalent Sulfoxide–Nitrile Coupling Involving Four-Center Heteroleptic Dipole–Dipole Interactions between the Sulfinyl and Nitrile Groups

Intercalation of Small Organic Molecules into Ti₃C₂T_x MXene Cathodes for Flexible High‐Volume‐Capacitance Zn‐Ion Microsupercapacitor

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Corrigendum to “Red/blue shifting hydrogen bonds in acetonitrile - Dimethyl sulphoxide solutions: FTIR and theoretical studies” [J. Mol. Struct. 1139 (2017) 196–201]

Cited by 8 publications

References 3 publications

New Hydrogen Bonding Enhanced Polyvinyl Alcohol Based Self‐Charged Medical Mask with Superior Charge Retention and Moisture Resistance Performances

New Hydrogen Bonding Enhanced Polyvinyl Alcohol Based Self‐Charged Medical Mask with Superior Charge Retention and Moisture Resistance Performances

Noncovalent Sulfoxide–Nitrile Coupling Involving Four-Center Heteroleptic Dipole–Dipole Interactions between the Sulfinyl and Nitrile Groups

Intercalation of Small Organic Molecules into Ti3C2Tx MXene Cathodes for Flexible High‐Volume‐Capacitance Zn‐Ion Microsupercapacitor

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Intercalation of Small Organic Molecules into Ti₃C₂T_x MXene Cathodes for Flexible High‐Volume‐Capacitance Zn‐Ion Microsupercapacitor