检索结果-南通市图书馆

Synthesis and Characterization of Donor-Acceptor-Donor Triads Containing tetrathiafulvalene and Naphthalene Diimide Units: Towards Regulation of the Intermolecular Charge-Transfer Interaction by Varying the Attached Side Groups

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Chemistry 2004年第3期22卷 296-305页

作者：郭雪峰张德清范清华朱道本 Center for Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100080 China Graduate School Chinese Academy of Sciences Beijing 100080 China

A series of donor-acceptor-donor triads 16 consisting of tetrathiafulvalene and naphthalene diimide units were synthesized and characterized. UV/Vis spectroscopic and cyclic voltammetric studies indicate that these triads show negligible intramolecular charge transfer interaction in the ground state. In contrast to that of the reference compound 36, their fluorescence intensities were reduced in the following sequences: 3≈4≈5≈6<1≈2, which is probably due to photoinduced electron transfer in triads 16. Two solid forms (yellow and green) of triads 15 were obtained, while only green form for triad 6 was obtained under the same conditions. Studies of the yellow and green forms with UV, XRD and DSC were performed. It was suggested that varying the attached side groups may regulate intermolecular charge transfer interactions in the solid state.

关键词： tetrathiafulvalene naphthalene diimide photoinduced electron transfer charge transfer interaction

Synthesis,structure and physical properties of the one-dimensional chain complex of tetrathiafulvalene carboxylate

在线全文

学校读者我要写书评

暂无评论

Science China Chemistry 2009年第10期52卷 1596-1601页

作者： CHEN Ya LI ChengHui WANG CaiFeng WU Di ZUO JingLin YOU XiaoZeng State Key Laboratory of Coordination Chemistry School of Chemistry and Chemical EngineeringNanjing National Laboratory of MicrostructuresNanjing UniversityNanjing 210093China Solid State Microstructure Laboratory Department of PhysicsNanjing UniversityNanjing 210093China

A new Co(Ⅱ) coordination polymer bearing TTF carboxylate group, [{Co2(trioTTF)2(H2O)6}·5H2O]n (1) (trioTTF=2-(5,6,8,9,11,12,14,15-octahydro-[1,3]dithiolo[4,5-h][1,4,13,7,10]trioxadithiacyclopentadecin-2-ylidene)-1,3-dithiole-4,5-dicarboxylate), has been prepared and characterized. In the structure of 1, shorter intermolecular S····S contacts (3.565 △) are found between the trioTTF groups from neighboring chains. The electric conductivity of 1 is poor due to the bulky crown-ether group, but it exhibits ferromagnetic interaction at low temperature.

关键词： syntheses crystal structures tetrathiafulvalene cobalt complexes

Halogen-bonded Cocrystal Based on tetrathiafulvalene Derivatives

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Structural Chemistry 2021年第10期40卷 1277-1283页

作者： ZHAO Long CHEN Guan-Fan WEN Yi-Hang XIAO Xun-Wen School of Chemistry and Chemical Engineering Hunan University of Science and TechnologyXiangtan 411201China College of Chemistry and Life Science Zhejiang Normal UniversityJinhua 321004China School of Material and Chemical Engineering Ningbo University of TechnologyNingbo 315211China

In this paper, two cocrystals 1 and 2 with the same chemical composition [L1.L2 ](L1 = bis(4’-pyridyl)-TTF, L2 = 4,4’-diiodophenyl) were synthesized by slow diffusion with different solvent systems. Cocrystals 1 and 2 were characterized by single-crystal X-ray and the purity of these two cocrystals was confirmed by PXRD data. The photocurrent responses of these two cocrystals were also tested. Only cocrystal 1 could generate photocurrent signal when exposed to light. From the crystal structure analysis, the possible reason may come from the different biphenyl conformations in L2.

关键词： tetrathiafulvalene crystal structure halogen bonding photocurrent responses

Amperometric Glucose Sensor with tetrathiafulvalene as an Electron Transfer Mediator

在线全文

学校读者我要写书评

暂无评论

Chemical Research in Chinese Universities 1995年第3期11卷 189-194页

作者： Sun, Chang-qing Yang, Xu Luan, Chai-xia Gao, Qian Xu, Hong-ding JILIN UNIV DEPT CHEMCHANGCHUN 130023PEOPLES R CHINA

glucose oxidase (GOD) electrode with tetrathiafulvalene(TTF) as an elec-tron transfer mediator is described. By means of Nafion, TTF was modified on aglassy carbon(GC) electrode surface, and glucose oxidase was then immobilized onthe TTF-Nafion film, forming a GOD-TTF-Nafion enzyme electrode. Characteris-tics of the sensor are shown by cyclic voltammetry and constant potential measure-ments. The sensor responds rapidly to glucose, the time required to reach 95% ofthe steady-state current is less than 60s. The sensor displays a sensitive catalyticcurrent response to glucose and can be operated in a potential range in which theoxidation of common interfering species, such as ascorbic acid and uric acid, doesnot occur. The sensor is stable for more than 30 days at 4℃ and plasma glucose assays were correlated with spectrophotometry(,i = 10 , r= 0. 995).

关键词： tetrathiafulvalene Nafion Biosensor Glucose

Hydrogen bonding networks controllable by the substitution position of tetrathiafulvalene on the pyridine ring

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2019年第3期30卷 767-770页

作者： Jing Xu Yibao Li Lejia Wang Xiaoyang Zhu Xunwen Xiao Yanfang Geng Ke Deng Qingdao Zeng CAS Key Laboratory of Standardization and Measurement for Nanotechnology CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology (NCNST) Key Laboratory of Organo-pharmaceutical Chemistry InstitutionGannan Normal University College of Chemical Engineering Ningbo University of Technology

tetrathiafulvalene(TTF), as a classical building unit, has attracted considerable attention, especially its functional derivatives. Hydrogen bonding(H-bonding) networks are a class of traditional and stable nanostructures, which play an important role in two-dimensional self-assembly and multi-component co-assembly. In this paper, we studied the regulation of H-bonding networks by functional groups in TTF derivatives. The results indicate that the position of pyridine on TTF not only affects their self-assembly structures in different solvents, but also controls the H-bonding networks through different mechanisms. Both para-TTF and meta-TTF molecules show different co-assembled structures with solvents depending on whether or not the presence of carboxylic acid group. On the pre-prepared H-bonding networks formed by famous 1,3,5-tris(10-carboxydecyloxy)-benzene(TCDB) molecule, both para-TTF and meta-TTF disturbed the original network structures with different degree of TCDB deformation. The formed new H-bonding networks with or without TTF derivatives participation are mainly attributed to the position of pyridine in TTF-based molecules. These results would be important for design of exceptional and functional nanostructures starting with the design of building block.

关键词： tetrathiafulvalene Pyridine Solvent Network Self-assembly

Colorimetric and electrochemical Pb^(2+) detection by imine-bridged tetrathiafulvalene-pyridine derivatives

在线全文

学校读者我要写书评

暂无评论

Science China Chemistry 2009年第6期52卷 765-770页

作者： TUNG ChenHo Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and Chemistry & Graduate University Chinese Academy of Sciences

Imine-bridged TTF-π-pyridine derivatives, 2NTTF, 3NTTF and 4NTTF, were synthesized and the cation-binding study was performed. It is noted that with the addition of the micromolar concentration of Pb2+ to the solution, these compounds display remarkable changes in solution color, 1H NMR spectra and electrochemical properties. The nitrogen atom of the imine-bridge in 2NTTF not only serves as a π-conjugated spacer but also participates in the sensing and coordinating properties.

关键词： tetrathiafulvalene intramolecular charge transfer imine-bridged TTF-π-pyridine derivatives Pb2+ recognition

Three Dimensional Sulfur-doped Graphene Hydrogels with tetrathiafulvalene for High Performance Supercapacitors

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Chemistry 2016年第1期34卷 46-52页

作者： Jingli Zhang Man Jiang Lingbao Xing Kun Qin Tianzhen Liu Jin Zhou Weijiang Si Hongyou Cui Shuping Zhuo School of Chemical Engineering Shandong University of Technology Zibo Shandong 255049 China Resources and Environmental Engineering Shandong University of Technology Zibo Shandong 255049 China

By using tetrathiafulvalene as reducing and doping agents, three-dimensional （3D） sulfur-doped graphene hydrogels （SGHs） were facilely prepared in mixed solvents of dimethyl formamide and water. Several investigations reveal that TTF plays a critical role in the formation of such unique 3D architecture, as it not only reduces GO to self-assembly into 3D structures, but also can be transformed to TTF^·＋ and TTF^2＋ as doping agents in the reduction process. The morphology, crystal structure, chemical bonding, elemental composition and porosity of the as-prepared SGHs have been studied. Benefiting from well-defined and cross-linked 3D porous network architectures, the supercapacitors based on the SGHs in KOH 212.5 F·g^-1 at 0.3 A·g^-1. Furthermore, this capacitance also degree of reversibility in the repetitive charge/discharge cycling electrolyte exhibited a high specific capacitance of showed good electrochemical stability and a high test.

关键词： tetrathiafulvalene graphene three-dimensional sulfur-doped graphene hydrogels supercapacitors

Supramolecular conducting microfibers from amphiphilic tetrathiafulvalene-based organogelator

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2019年第1期30卷 123-126页

作者： Xuemei Liang Lei Wang Kwangun Jeong Myonghoon Lee College of Information Technology Jilin Agricultural University Department of Polymer/Nano Science and Technology Chonbuk National University National Center for Nanoscience and Technology (NCNST)

An amphiphilic tetrathiafulvalene molecule was designed and readily synthesized. The am-TTF can gelate a variety of organic solvents in view of multiple intermolecular interactions, especially in polar solvent.SEM observation provided clear evidence for the self-assembled micro/nanofibers morphologies in gelation state. Moreover, XRD measurements indicated the formation of highly-ordered columnar structures. The FT-IR spectra revealed that the formation of mixed-valence states with the absorption over 1700 cm^(-1), showing the semiconductive behaviors with the conductivity of 10^(-4)S/cm. The am-TTF based conducting fibers could be promising candidates for organic electronics.

关键词： tetrathiafulvalene Fiber Gelator Supramolecular Conducting

Photophysical Properties and Photoinduced Electron Transfer between [60] Fullerene-Containing Cyclic Sulphoxide [C_(60)-C_6H_8SO] and tetrathiafulvalene (TTF) by Laser Flash Photolysis

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Chemistry 2002年第10期20卷 1007-1011页

作者：曾和平 Department of Chemistry South China Normal University Guangzhou Guangdong 510631 China

Photoinduced electron transfer (PET) processes between C 60-C 6H 8SO and tetrathiafulvalene (TTF) have been studied by nanosecond laser photolysis. Quantum yields (Φ et) and rate constants of electron transfer (k et) from TTF to excited triplet state of fullerene-containing cyclic sulphoxide in benzonitrile (BN) have been evaluated by observing the transient absorption bands in the NIR region. With the decay of excited triplet state of fullerene-containing cyclic sulphoxide, the rise of radical anion of fullerene-containing cyclic sulphoxide is observed.

关键词： laser flash photolysis fullerene-containing cyclic sulphoxide tetrathiafulvalene