检索结果-南通市图书馆

Science China Chemistry 2017年第3期60卷 358-365页

作者： Cai-Ming Liu De-Qing Zhang Xiang Hao dao-ben zhu Beijing National Laboratory for Molecular Sciences Center for Molecular Science Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China

Two dysprosium(Ⅲ) complexes derived from 2,2'-bipyridine-6,6'-dicarboxylic acid(H_2bpdc),[Dy(bpdc)(Hbpdc)]-3H_2O(1) and[Dy_2(bpdc)_3(H_2O)_3]·2.125H_2O(2),were isolated from the same hydrothermal reaction container as different ***1 is a mononuclear complex with a DyN_4O_4 coordination polyhedron;whereas compound 2 is a dinuclear complex with two types of eight coordinated dy sprosium(Ⅲ) ions,showing DyN_4O_4 and DyN_2O_6 coordination polyhedra,***,a new type of(H_2O)_6 supramolecular aggregate exists in the crystal structure of *** investigations revealed that 1 is a field-induced single-ion magnet with an effective energy barrier of 45.6 K,exhibiting two-step magnetic relaxation;while an intramolecular ferromagnetic interaction exists in 2,which is a field-induced single-molecule magnet,displaying two-step magnetic relaxation too,with effective energy barriers of 53.4 and 92.1 K,respectively.

关键词： single-molecule magnet single-ion magnet dysprosium(Ⅲ) complexes slow magnetic relaxation water aggregations

SYNTHESIS AND PROPERTIES OF ANILING ANILING AND 0-AMINObenZENESULFONIC ACID COPOLYMER

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Polymer Science 1999年第2期17卷 165-170页

作者： Jun-hua Fan Mei-xiang Wan dao-ben zhu Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China Institute of Chemistry Chinese Academy of Sciences Beijing 100080 China

Poly(aniline- co-o-aminobenzenesulfonic acid) (PAOABSA) as a water soluble conducting polymerwas synthesized by chemical polymerization. The productivity and the room-temperature conductivity of thecopolymer were measured as a function of the reaction conditions, such as reaction temperature, the ratio ofoxidant to monomer and the degree of sulfonation defined as the ratio of sulfur to nitrogen atoms(S/N). Themain results obtained are summarized as follows : (1) lower reaction temperature (at about 0℃) is favorablefor the enhancement of the room-temperature conductivity of the copolymer; (2) higher content of oxidant isunfavorable for increasing the room-temperature conductivity of the copolymer; (3) both productivity androom-temperature conductivity of the copolymer decrease with increase of the degree of sulfonation whichwas always lower than 0.5 even an excess of o-aminobenzenesulfonic acid was added, probably because thereactivity ratio of aniline (γ=2.99± 0.05) is much higher than that of o-aminobenzenesulfonic acid (γ_2 = 0.06±0.02) estimated by using Fineman-Ross method and least square method.

关键词： Watersoluble polyaniline Reactivity ratio Copolymer

Synthesis and Characterization of a Squarylium Cyanine Dye with Two [60]Fullerene Units

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2001年第8期12卷 683-686页

作者： Chi Min DU Ju Hua XU Yu Liang LI Zhi Qiang SHI Shu WANG dao ben zhu Center of Molecular Sciences Institute of ChemistryChinese Academy of SciencesBeijing 100080

A new [60]fullerene dimer 2 in which two C-60 units are covalently attached to a squarylium cyanine dye has been synthesized and characterized.

关键词： Fullerene dimer squarylium cyanine dye

Syntheses of molecular wires containing redox center:Reversible redox property and good energy level matching with Au electrode

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2008年第11期19卷 1285-1289页

作者： Er Jing Wang Cheng Liang Wang Qing Meng Hong Xiang Li Wen Ping Hu dao ben zhu Beijing National Laboratory for Molecular Sciences and Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China Graduate School of Chinese Academy of Sciences Beijing 100039 China

Molecular wires with tetrathiafulvalene （TTF） as redox center were synthesized and characterized. UV-vis spectra and cyclic voltammetry showed these wires had good reversible redox behavior under ambient conditions ... 详细信息

关键词： Charge transfer Molecular wires Redox center Tetrathiafulvalene

Reactions of [60]Fullerene with Di(azidomethyl) benzenes

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 1998年第6期9卷 515-517页

作者： Chuan Feng CHEN Ji Sheng LI Gai Jiao JI dao ben zhu(Institute of Chendstry, The Chinese Academy of Sciences, Beijing 100080) Institute of Chemistry Chinese Academy of Sciences Beijing 100080 China

A diazafulleroid derivative with adjacent 5-6 junctions has been synthesized by the regioselective addition of 1,2-di(azidomethyl) benzene to [60]fullerene. Reaction of [60]fullerene with 1,4-di(azidomethyl) benzene i... 详细信息

关键词： di(azidomethyl) benzenes fullerene diazafulleroid copolymer synthesis

A [70]FULLEROPYRROLIDINE: DERIVED FROM C_(70), KETONAND α-AMINOACID

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 1996年第6期7卷 571-572页

作者： Da Gui ZHENG Yu Liang LI Jing Kui YANG and dao ben zhu(Institute of Chemistry, Chinese Academy of Sciences, Bejing 100080) Institute of Chemistry Chinese Academy of Sciences Bejing 100080 Shangrao Teacher's College Shangrao Jiangxi 334001

A [70]fulleropyrrolidine was obtained by refluxing the mixture of C70 Cyclohexailone and2-aminoisobutyric acid in chlorobenzene under N2

关键词：

Synthesis and Characterization of Both Enantiomers of a Chiral C_(60) Derivative Bearing the 1, 1'-Binaphthyl Group

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 1998年第10期9卷 931-934页

作者： Chuan Feng CHEN Gai Jiao JI Ji Sheng LI dao ben zhu(Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100080) Institute of Chemistry Chinese Academy of Sciences Beijing 100080 China

Both enantiomers R-1 and S-1 of a chiral C60 derivative were synthesized by the reactions of C60 with 1, 1'-bi-2-naphthol bis(azidoacetates) and characterized by FD-MS, fT-IR,1H NMR, 13C NMR, UV-VIS, CD spectra.

关键词： chiral C_(60) derivative 1, 1'-bi-2-naphthol enantiomer synthesis CD spectrum

THE SYNTHESIS AND CHARACTERISATION OFASYMMETRIC HYDROMETHYL BEDT-TTF

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 1996年第6期7卷 573-576页

作者： Wei QIN Bin ZHANG You An YAO Yong Fang LI dao ben zhu(Institute of Chemistry, Chinese Academy of Science, Beijing 100080) Institute of Chemistry Chinese Academy of Science Beijing 100080

A new bisethyldithionetetrathiafulvalene (ET) derivative was synthesised. The cyclic voltammogram comparison of asymmetric hydromethyl bisethyldithionetetrathiafulvalene (HMET) and ET was made. The single crystal of charge transfer complex HMETI(X) was obtained and characterised. The conductivity of the single crystal was measured between room temperature and liquid nitrogen temperature. This single crystal is a semiconductor in the liquid nitrogen temperature range.

关键词： THE SYNTHESIS AND CHARACTERISATION OFASYMMETRIC HYDROMETHYL BEDT-TTF

STUDY ON THE SYNTHESIS OF 1,3,4,6-TETRATHIAPENTALENE-2,5-DIONE(THIAPENDIONE)

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 1995年第5期6卷 363-366页

作者： Sheng Gao LIU Pei Ji WU Yun Qi LIU and dao ben zhu (Institute of Chemistry, Academia Sinica, Beijing 100080) Acad Sinica Inst Chem Beijing 100080 Peoples R China

Synthesis of 1,3,4,6-tetrathiapentalene-2,5-dione(thiapendione) has been studied in detail and a convenient synthetic procedure is reported.

关键词：

Positive Shifts of the Reduction Potentials of C_(60) by Substitution of Cyanogens

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 1998年第1期9卷 99-101页

作者： Lou Zhen FAN Yong Fang LI Feng Ying LI Yu Liang LI dao ben zhu(Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080) Institute of Chemistry Chinese Academy of Sciences Beijing 100080 China

The electrochemical properties of a new derivative of C60 were investigated by cyclic voltammetry. It was found that the derivative was reduced at a more positive potential than C60,reflecting its significance to acce... 详细信息

关键词： C_(60) derivative electrochemical properties NIR absorption bands