Molecular Crystals and Liquid Crystals最新文献

{"title":"Preparation of magneto-electro-optically active polymer using Fe ionic liquid as electro-magnetic dopant","authors":"Kyoka Komaba, Tomoaki Jo, Hiromasa Goto","doi":"10.1080/15421406.2023.2266636","DOIUrl":"https://doi.org/10.1080/15421406.2023.2266636","url":null,"abstract":"AbstractIn this research, we report the synthesis of conjugated polymers with magnetism. Electrochemical polymerization in liquid crystal was conducted with 1-butyl-3-methylimidazolium tetrachloroferrate (BMITF), which is a paramagnetic character having a large magnetic susceptibility, as a supporting salt. The polymer films thus obtained had magnetism because BMITF remains in the films as a dopant. Poly(2,2′-bithiophene) and poly(bis-(3,4-ethylenedioxythiophene)) were prepared in nematic or cholesteric liquid crystal with BMITF by electrochemical polymerization. Transcription of the liquid crystal structure was succeeded with a small amount of BMITF. Blush or fingerprint structures were confirmed by polarizing optical microscopy observation. The addition of the excess amount of BMITF broke the structure of the liquid crystal. Poly(2,2′-bithiophene) transcribed the cholesteric liquid crystal structure showed a negative Cotton effect, indicating with left-handed helical structure. Poly(bis-(3,4-ethylenedioxythiophene)) transcribed the cholesteric liquid crystal structure showed a positive Cotton effect, indicating the polymer forms a right-handed helical structure. The X-ray photoelectron spectroscopy measurements, confirming the existence of Fe element in the polymers thus obtained. From the electron spin resonance measurements, the polymers thus obtained showed magnetic activity. This method affords facile synthesis of conjugated polymers with magnetism.Keywords: Conjugated polymerselectrochemical polymerizationferromagnetismionic liquidliquid crystalmagnetic dopant Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis work was supported by JST, the establishment of university fellowships toward the creation of science technology innovation, Grant Number JPMJFS2106 and Japan Society for the Promotion of Science (JSPS), Grants-in-Aid for Scientific Research (No. 20K05626).","PeriodicalId":18758,"journal":{"name":"Molecular Crystals and Liquid Crystals","volume":"171 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135969263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hybrid Schrödinger-Ginzburg-Landau (Sch-GL) approach to study of superconducting integrated structures","authors":"K. Pomorski, B. Stojewski","doi":"10.1080/15421406.2023.2262299","DOIUrl":"https://doi.org/10.1080/15421406.2023.2262299","url":null,"abstract":"AbstractHybrid Schrödinger-Ginzburg-Landau approach is based on the fact of the mathematical similarity of Ginzburg-Landau (GL) and Schrödinger formalisms. Starting from Schrödinger approach by replacing the term V (x)−E with the term α(x)+β(x)|ψ(x)|2 we get the Ginzburg-Landau equation. In the proposed relaxation algorithm, we use one- and two-dimensional ground energy solutions of the Schrödinger equation and apply them as a starting trial solution for the GL relaxation method. The obtained numerical results and used methodology form the basis of the simulation platform for studying superconducting integrated structures and modeling various superconducting devices, including their time-dependent geometry.Keywords: Ginzburg-Landaurelaxation methodsuperconductivitysuperconducting integrated structures Disclosure statementNo potential conflict of interest was reported by the author(s).","PeriodicalId":18758,"journal":{"name":"Molecular Crystals and Liquid Crystals","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135969426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A cobalt-coordination polymer as a highly selective and sensitive luminescent sensor for detecting 2,4,6-trinitrophenol","authors":"Cuiping Wang, Wenwen Sheng, Chen Sun, Jie Lei, Jinsong Hu","doi":"10.1080/15421406.2023.2262857","DOIUrl":"https://doi.org/10.1080/15421406.2023.2262857","url":null,"abstract":"AbstractIn this paper, a new three-dimensional network coordination polymer {[Co(TPTC)(HBPDPE)2·2H2O]·3H2O}n [[[(1:1′:4′,1″-terphenyl)-3,3″,5,5″-tetracarboxylic cobalt (II)] dipyridine dihydrate] trihydrate] (Complex 1) was generated under solvothermal synthesis by rigid conjugated ligand H4TPTC ([1:1′:4′,1″-terphengl]-3,3″,5,5″-tetracarboxylic), V-shaped BPDPE (4,4′-bis (pyridyl) diphenyl ether) and Co(II) ion. In complex 1, the neighboring Co(II) ions are linked by deprotonated TPTC4- to achieve a 1D zigzag chain [Co(TPTC)(HBPDPE)2]n, then the adjacent [Co(TPTC)(HBPDPE)2]n chains linked each other by various H-bondings to extend the structure from 1D chain to 3D network. Complex 1 has excellent fluorescence sensing performance and exhibits high sensitivity and selectivity for detecting 2,4,6-trinitrophenol (TNP), the quenching constant Ksv is up to 2.08 × 105 M−1 along with the correlation coefficient R2 of 0.993. Furthermore, the quench mechanisms of this Co-MOF as a sensor to detect nitro- aromatic explosives were studied as well.A new three-dimensional coordination polymer {[Co(TPTC)(HBPDPE)2·2H2O]·3H2O}n (1), constructed by 1D zigzag chains and H-bondings interactions, was synthesized under solvothermal condition by a rigid conjugated ligand H4TPTC ([1:1′:4′,1″-terphengl]-3,3″,5,5″-tetracarboxylic), BPDPE (4,4′-bis (pyridyl) diphenyl) and Co(II) ion. Complex 1 has excellent fluorescence sensing performance for detecting Nitroaromatic explosive (NAE) 2,4,6-trinitrophenol (TNP), the quenching constant Ksv is up to 2.08 × 105 M−1, and the quenching mechanism was studied as well.Keywords: Coordination polymercrystal structureluminescent sensingnitroaromatic explosives Author contribution statementCuiping Wang: Collecting experimental data, Writing-original draft. WenWen Sheng: Writing-review & editing. Chen Sun: Collecting experimental data. Jie Lei: Collecting experimental data. JinSong Hu: Conceptualization, Writing-review & editing, Supervision.Data availabilityData will be made available on request.Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis work thanks to the fund support of the Natural Science Foundation of China (No. 21671004) and the Key Project of Natural Science Research for Colleges and Universities of Anhui Province (KJ2020A0958), CCDC: 2165480","PeriodicalId":18758,"journal":{"name":"Molecular Crystals and Liquid Crystals","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135591781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fe ₃ O ₄ -Au nanohybrids as novel SEIRA and SERS substrate for Glycine detection","authors":"Maxim Rallev, Olena Fesenko, Andrii Yaremkevych, Olena Lavrynenko","doi":"10.1080/15421406.2023.2260077","DOIUrl":"https://doi.org/10.1080/15421406.2023.2260077","url":null,"abstract":"AbstractFe3O4-Au hybrid nanostructures combining magnetic and plasmonic properties based on nanomagnetite and Au nanocrystals have been synthesized and characterized. The SEIRA and SERS signal enhancement of Glycine adsorbed on these hybrid nanostructures was obtained. It is shown that different molecular groups of Glycine are enhanced in different ways, depending on the type of interaction and the orientation of the molecule relative to the surface. According to the results of the research, the obtained Fe3O4-Au nanohybrids have the properties of plasmonic metals, while retaining ferromagnetic properties and have great potential as substrates for surface-enhanced vibration spectroscopy in trace analysis.Keywords: Fe3O4-AuFTIR spectroscopyRAMAN spectroscopyGlyFe3O4-Au-Gly AcknowledgmentsAuthors thanks the National Academy of Sciences of Ukraine and the grant PH/23-2023 “Influence of size effects on the electrophysical properties of graphene ferroelectric nanostructures” of the Ministry of Education and Science of Ukraine for their support.Disclosure statementNo potential conflict of interest was reported by the author(s).","PeriodicalId":18758,"journal":{"name":"Molecular Crystals and Liquid Crystals","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136060520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis and self-assembly properties of the first fluorescein-based hexacatenar mesogens","authors":"Xiaoling Xie, Xiaoqin Yi, Yurun Liang, Jun Leng, Xiaotong Liu, Hongfei Gao, Yulong Xiao","doi":"10.1080/15421406.2023.2258695","DOIUrl":"https://doi.org/10.1080/15421406.2023.2258695","url":null,"abstract":"AbstractFirst series of fluorescein-based hexacatenar mesogens consisting of a central fluorescein unit and two 1,2,3-triazole dendritic wings were designed and synthesized by using the Williamson reaction and Cu-assisted alkyne-azide cycloaddition reaction. Polarized optical microscopy textures, differential scanning calorimetry curves, and X-ray diffraction (XRD) data demonstrated that all the compounds can self-assemble into hexagonal columnar mesophases. Organogel test demonstrated that these compounds could form organogel in some moderate polar solvents with irregularly winkled morphologies. Density functional theory calculation demonstrated that these mesogens adopted distorted conformation which might be the reason why narrow mesogenic temperature ranges and irregularly winkled morphologies in these compounds are observed.Keywords: Fluoresceinhexacatenarliquid crystalorganogel AcknowledgmentsWe thank beamline 1W2A at Beijing Synchrotron Radiation Facility (BSRF), China.Disclosure statementNo potential conflict of interest was reported by the authors.Additional informationFundingThis work was supported by China West Normal University Doctor Startup Fund (No. 412821), Major project funds of Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province (No. CSPC202101), The Science and Technology Department of Sichuan Province (No. 2022NSFSC1237), Natural Science Foundation of China (No. 22265030), and Funds for leading local scientific technological development by the central government (202307AB110010).","PeriodicalId":18758,"journal":{"name":"Molecular Crystals and Liquid Crystals","volume":"134 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135015023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Molecular heteroassociation in films of thiochrome and tryptophan","authors":"A. M. Gaponov, O. L. Pavlenko, O. P. Dmytrenko, M. P. Kulish, A. S. Ryzhkova, A. I. Lesiuk, N. V. Obernikhina, B. Łuszczyńska, O. D. Kachkovsky","doi":"10.1080/15421406.2023.2257515","DOIUrl":"https://doi.org/10.1080/15421406.2023.2257515","url":null,"abstract":"AbstractOptical absorption spectra were studied for films of tryptophan, thiochrome and their layer-by-layer composites. It was shown that the absorption spectra were rearranged in the composites. Quantum-chemical modeling of the electronic structure and optical transitions of the specified molecules, and their complexes, indicate that the reason for the rearrangement of the optical spectra is the heteroassociation between the molecules of thiochrome and tryptophan, which is accompanied by significant changes in the electronic states of the formed complexes.Keywords: Amino acid tryptophanquantum-chemical calculationsπ-π stakingsabsorption spectrumthiochrome dye Disclosure statementNo potential conflict of interest was reported by the author(s)","PeriodicalId":18758,"journal":{"name":"Molecular Crystals and Liquid Crystals","volume":"232 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135308463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An insight into the transition metal dependent structural, optical, and electrical properties of dysprosium doped lithium zinc borate glasses","authors":"Anju Bishnoi, Manoj Duhan, Satish Khasa","doi":"10.1080/15421406.2023.2256577","DOIUrl":"https://doi.org/10.1080/15421406.2023.2256577","url":null,"abstract":"AbstractA glass series of Dy3+ ions doped zinc vanadium lithium borate with chemical composition xV2O5·(10-x)ZnO·30Li2O·60B2O3 (x = 0, 1, 5, 7, 9, 10) with 1.0 mol% of Dy2O3 has been synthesized by melt quench method. Efforts have been made to identify suitable optoelectronic material by studying the structural, electrical, photo-luminescence (PL), and optical characteristics of the dysprosium ions in the presence of VO2+ ions. PL emission spectra have been explored, depicting that when excited at 386 and 424 nm, the glass matrix is suitable for laser action and at 452 nm, it is apt for cool white light applications.Keywords: Dc conductivitydysprosiumoptical band gapphotoluminescence (PL)transition metal ions (TMI) AcknowledgmentsThe authors would like to thank the Central Instrumentation Laboratory (CIL), DCRUST, Murthal, for facilitating FTIR measurements.Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThe authors also want to acknowledge DST, Delhi, for providing Fluorescence facilities under FIST Research Grant (Sanction Order No. & Date: SR/FST/PS-1/2018/32).","PeriodicalId":18758,"journal":{"name":"Molecular Crystals and Liquid Crystals","volume":"159 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135307108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sorption-luminescence method for determination of ytterbium","authors":"O. Stashkiv, Volodymyr Vasylechko, Roman Gamernyk, Yaroslav Kalychak","doi":"10.1080/15421406.2023.2253606","DOIUrl":"https://doi.org/10.1080/15421406.2023.2253606","url":null,"abstract":"Yb(III) ions, complexed with some organic ligands, exhibit intense luminescence. The light energy is absorbed by the organic part of the molecule of the complex, then there is an intramolecular energy transfer from the organic ligand to the Yb(III) ion. During the sorption of Yb(III) on the solid matrix, the intermolecular energy transfer is suppressed, which provides the increase of the luminescence intensity, and the effect of selective preconcentration is achieved. Promising materials for solid-phase spectrofluorimetry are natural zeolites. Sorbed Yb(III) on these natural nanomaterials retains the ability to interact with organic ligands. In order to develop a sorption-luminescent method for the determination of Yb, the ability to luminescence of Yb(III) ions sorbed on natural Transcarpathian clinoptilolite in combination with 1-(2-pyridylazo)-2-naphthol (PAN) was studied. Luminescence composition «clinoptilolite-Yb(III)-PAN» is observed in the IR region of the spectrum with a maximum λ=978 nm. Luminophore samples were excited by a laser with λ=532 nm. The optimal conditions for obtaining this luminophor have been found. To prepare an effective luminophor «clinoptilolite-Yb(III)-PAN» it is necessary to use precalcined at 300 о C samples of clinoplololite, heated at 50 о C samples «clinoptilolite-Yb(III)», and the final luminophor heated at 50 о C. Sorption of Yb(III) on clinoptilolite is carried out from weakly alkaline solutions at pH 9.0. The developed sorption-luminescent method allows to determine Yb in the presence of 10-fold excess of La(III) and Eu(III), as well as 5-fold excess of Lu(III), Tm(III), Gd(III), Pr(III), Tb(III) with a detection limit of 5.0 ng·mL -1 . The method is tested on model solutions and intermetallics. The method provides a high enrichment factor, a wide concentration range of Yb determination (12.5-1000 ng·mL -1 ).","PeriodicalId":18758,"journal":{"name":"Molecular Crystals and Liquid Crystals","volume":"44 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90380059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optical absorption in core–shell quantum antidot with donor impurity under applied co-directed electric and magnetic fields","authors":"M. Chubrei, V. Holovatsky, N. Holovatska","doi":"10.1080/15421406.2023.2253609","DOIUrl":"https://doi.org/10.1080/15421406.2023.2253609","url":null,"abstract":"","PeriodicalId":18758,"journal":{"name":"Molecular Crystals and Liquid Crystals","volume":"490 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77053114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Theory of phase transitions in the assembly of biaxial molecules interacting via dispersion forces II: on phase transitions of flexible molecules","authors":"Masahito Hosino","doi":"10.1080/15421406.2023.2235189","DOIUrl":"https://doi.org/10.1080/15421406.2023.2235189","url":null,"abstract":"","PeriodicalId":18758,"journal":{"name":"Molecular Crystals and Liquid Crystals","volume":"17 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80131191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}