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Science china Chemistry 2007年第5期50卷 607-613页

作者： SUI YunXia1, WEN LiLi2. ZHANG Huan3 & MENG QingJin2.1 Center of Modern Analysis, nanjing university, nanjing 2.0093,{2. 2.State key laboratory of coordination Chemistry, coordination Chemistry Institute, nanjing university, nanjing 2.0093,{2. 3 Jiangnan Institute of Computing Technology, Wuxi 2.4083,{2. 1. Center of Modern Analysis Nanjing University Nanjing 210093 China 2. State key {2. of coordination Chemistry Coordination Chemistry Institute Nanjing University Nanjing 210093 China 3. Jiangnan Institute of Computing Technology Wuxi 214083 China

The X-ray crystal structures of (NH4)2.15-crown-5)3[Cu(mnt)2. (1) and(NH4)2.benzo-15-crown-5)4-[Cu(mnt)2. ident to 0.5H2. (2. were *** single crystals arecomposed of distinct structures of ammonium-crown ether supramolecular cation and [Cu(mnt)2.^(2.)*** triple-decker dication in complex 1 and a sandwich dimmer in complex 2.wereobserved.X-Band EPR studies on the single crystals of both complex 1 and complex 2.have been carriedout at room temperature,which revealed that complex 2.showed a perfect hyperfine structure of Cuwhereas that of complex 1 could not be *** principal values and direction cosines of theprincipal axes of the g and A tensors were computed by a least-squares fitting *** spindensity of Cu(ll) was estimated according to the principal values of the A tensors and compared wellwith the results calculated based on DFT method.

关键词： supramolecular cation, H-bonding interaction, EPR, g and A tensors, DFT

A class of fascinating optoelectronic materials: Triarylboron compounds

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Science china Chemistry 2010年第6期53卷 1235-1245页

作者： MOU Xin1,LIU ShuJuan1,DAI ChunLei1,MA TingChun1,ZHAO Qiang1,2.LING QiDan1 & HUANG Wei1 1key laboratory for Organic Electronics & Information Displays (KLOEID) and Institute of Advanced Materials (IAM),{2. university of Posts and Telecommunications,{2. 2.0046,china 2.tate key laboratory of coordination Chemistry,{2. university,{2. 2.0093,china 1. key laboratory for Organic Electronics & Information Displays (KLOEID) and Institute of Advanced Materials (IAM) Nanjing University of Posts and Telecommunications Nanjing 210046 China2. State Key Laboratory of Coordination Chemistry Nanjing University Nanjing 210093 China

Triarylboron compounds are significant optoelectronic materials due to their excellent emissive and electron-transport properties,and could be applied in organic light-emitting diodes as emissive and/or electron-transport *** compounds have vacant pπ orbital and have received increasing interest as fluoride ion and cyanide ion sensors utilizing specific Lewis acid-base *** review summarizes their structural characteristics,optical properties and applications in chemosensors for anions and optoelectronic devices developed in recent years and discusses the problems and prospects.

关键词： OLEDs optical properties sensors structure-property relationships triarylboron compounds

Tripod molecules build molecular networks and open-dimer capsules by weak interactions

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Science china Chemistry 2010年第4期53卷 851-857页

作者： HAN Jun1, DENG Chao1, FANG Ru1, LI YiZhi2. WANG LeYong1& PAN Yi2.1key laboratory of Mesoscopic Chemistry, Ministry of Education School of Chemistry and Chemical Engineering,{2., nanjing 2.0093, china 2.tate key laboratory of coordination Chemistry,{2., nanjing 2.0093, china 1. key laboratory of Mesoscopic Chemistry Ministry of Education Nanjing University Nanjing 210093 China3. School of Chemistry and Chemical Engineering Nanjing University Nanjing 210093 China2. State Key Laboratory of Coordination Chemistry Nanjing University Nanjing 210093 China

Three tripod molecules, tris(2.methoxy-5-nitrobenzyl)phosphine oxide (1), tris(2.butoxy-3-methyl-5-nitrobenzyl)phosphine oxide (2., and tris(3-nitrobenzyl)amine (TNBA), were synthesized and crystallized. The structures of 1, 2. and their comparison (TNBA) were determined by X-ray crystallography. It is noteworthy that compound 1 interacted with adjacent molecules via π-π stacking and C-H···π interactions to yield an open supramolecular network with the porosity P in 8.9%, whereas compound 2.gathered closely to form an open-dimer capsule by sixfold N-O···π and triple C-H···O interactions, which showed a rare example of a stable in, out-invertomer of phosphine inversion existing in open-dimers. A series of columns were built and arranged side by side by these weak interactions. By contrast, TNBA crystallized to form a 2. network maintained by C-H···O and C-H···πinteractions. It seems minor changes of the chemical structure may cause large differences in the crystal structure and interactions in crystal engineering.

关键词： tripod molecule supramolecular network open-dimer capsule weak interaction

Inclusion Behavior of Dimer β-CyclodextrinBridged with Aspartic Acid Derivative

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Chinese Chemical Letters 2001年第2期12卷 119-120页

作者： Le Xin SONG coordination Chemistry Institute & State {2. laboratory of coordination Chemistry, nanjing university, nanjing 2.0093 nanjing Univ Inst Coordinat Chem Nanjing 210093 Peoples R China nanjing Univ State Key Lab Coordinat Chem Nanjing 210093 Peoples R China

The (β-cyclodextrin (CD) dimer bridged with aspartic acid (ASP) derivative, FITC-ASP(NH-(-CD)2.(Host, FITC=fluorescein-4-isothiocyanate), was synthesized. Fluorescence polarization study showed that the novel host formed an inclusion compound, [FITC-ASP(NH-(-CD)2.ATA, for which Kd was determined to be 5.0×10-6 mol/L by Beacon 2.00 Analyzer, when ATA (Guest) = Adm-Trp-Arg-Arg-NH2.(Adm = 1-adamantanecarboxylic acid, Trp = tryptophan, Arg = arginine), where Kd is the dissociation constant in aqueous solution at 2.8 K.

关键词： β-Cyclodextrin amino acid peptide inclusion compound fluorescence polarization.

Syntheses,crystal structures and properties of three novel coordination polymers with tripodal imidazole-containing ligands and benzenetetracarboxylate

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Science china Chemistry 2010年第10期53卷 2164-2169页

作者： SU Zhi, FAN Jian & SUN WeiYin State key {2. of coordination Chemistry nanjing National {2. of Microstructures coordination Chemistry Institute, School of Chemistry and Chemical Engineering, nanjing university, nanjing 2.0093, china 1. State key {2. of coordination Chemistry nanjing National laboratory of Microstructures coordination Chemistry Institute School of Chemistry and Chemical Engineering Nanjing University Nanjing 210093 China

Three novel coordination polymers, [Ni2.tib)2.btec)]·2.2. (1), [Co2.tib)2.btec)]·2.2. (2. and [Zn4(tib)2.btec)Cl4]·2.2. (3), have been synthesized by using mixed ligands of 1,3,5-tris(1-imidazolyl)benzene (tib) and 1,2.4,5-benzenetetracarboxylic acid (H4btec) under hydrothermal conditions. Complexes 1 and 2.have the same structure and are rare three-dimensional (3D) self-penetrating (3,4,5)-connected nets, while complex 3 is an unprecedented (3,4)-connected 3D net. The different structures of 1 (2. and 3 are ascribed to the distinct coordination geometry of the metal centers. The thermal stability and photoluminescence property of the complexes were investigated.

关键词： coordination polymer self-penetration crystal structure thermal stability photoluminescence property

IMPEDANCE CHARACTERISTICS OF POLYFURAN FILMS

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Chinese Journal of Polymer Science 2002年第5期20卷 419-423页

作者： Liang Li Xiao-bo Wan Gi Xue Department of Polymer the State key {2. of coordination Chemistry nanjing university nanjing 2.0093. china nanjing Univ Dept Polymer State Key Lab Coordinat Chem Nanjing 210093 Peoples R China

Electrochemical impedance spectroscopy (EIS) was first used for the characterization of polyfuran (PFu) films that had been formed electrochemically on an Au electrode. The polyfuran was measured in high oxidation state, intermediate oxidation state and reduction state, respectively. As the oxidation level is increased, the ionic conductivity of PFu/BF4- increases. And impedance studies on PFu show that the anion BF4- appears to be mobile with a high diffusion coefficient of approximately 10(-8) cm(2..s(-1).

关键词： polyfuran electrochemical impedance spectroscopy capacitance

Regioselective aminohalogenation of β-nitrostyrenes using NCS and NBS as nitrogen/halogen sources

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Science china Chemistry 2010年第1期53卷 140-146页

作者： ZHI SanJun1,2.SUN Hao2.LIN Chen2.ZHANG GuangQian2.LI GuiGen4 & PAN Yi2.3 1 Department of Chemistry,Huaiyin Normal university,Huai’an 2.1003,china 2.School of Chemistry and Chemical Engineering,{2. university,{2. 2.0093,china 3 State key Lab of coordination Chemistry,{2. university,{2. 2.0093,china 4 Department of Chemistry and Biochemistry,Texas Tech university,Lubbock,Texas 79409-1061,USA 1. Department of Chemistry Huaiyin Normal University Huai’an 221003 China2. School of Chemistry and Chemical Engineering Nanjing University Nanjing 210093 China4. Department of Chemistry and Biochemistry Texas Tech University Lubbock Texas 79409-1061 USA3. State Key Lab of Coordination Chemistry Nanjing University Nanjing 210093 China

Aminohalogenation reaction of β-nitrostyrenes with N-halosuccinimides(N-chloro and N-bromosuccinimides) has been successfully conducted by using nickel acetate as a catalyst in the presence of potassium carbonate and succinimide as *** reaction was easily performed at room temperature under nitrogen gas protection to give dihalorinaed haloamino products in good to excellent yields(60%-98%).The structure has been confirmed by X-ray crystal structure analysis.

关键词： aminohalogenation vicinal haloamines β-nitrostyrenes NBS NCS

One-dimensional metal phosphonates based on 6-phosphononicotinic acid:A structural and magnetic study

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Science china Chemistry 2010年第10期53卷 2112-2117页

作者： WANG PengFei, DUAN Yan & ZHENG LiMin State key {2. of coordination Chemistry coordination Chemistry Institute, School of Chemistry and Chemical Engineering, nanjing university, nanjing 2.0093, china 1. State key {2. of coordination Chemistry coordination Chemistry Institute School of Chemistry and Chemical Engineering Nanjing University Nanjing 210093 China

The reactions of 6-phosphononicotinic acid (pnaH3) and metal salts result in three new compounds, namely, M(pnaH)-(H2.)3·H2. [M = Co(Ⅱ) (1), Ni(Ⅱ) (2., Zn(Ⅱ) (3)]. These compounds are isostructural and contain 2. helical chains made up of corner-sharing {MO5N} octahedra and {PO3C} tetrahedra. The chains are further connected by extensive hydrogen bonds to form a three-dimensional supramolecular structure. Magnetic studies reveal that dominant antiferromagnetic interactions are mediated in both 1 and 2. Interestingly the dehydrated compound 1 shows metamagnetic behavior at low temperature.

关键词： carboxylate-phosphonate coordination polymer magnetic property metamagnetism

Anion Adsorption on an Au Colloid Monolayer Based Cysteamine-Modified Gold Electrode

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Chemical Research in Chinese Universities 2001年第2期17卷 159-167页

作者： HU Xiao-ya, XIAO Yi and CHEN Hong-yuan (Department of Chemistry, The State key {2. of coordination Chemistry, nanjing university, nanjing 2.0093, P. R. china) nanjing Univ Dept Chem State Key Lab Coordinat Chem Nanjing 210093 Peoples R China

Anion adsorption behavior on Au colloid surface was investigated in virture of depositing monolayers of Au colloid on the self-assembled monolayers of cysteamine on a gold electrode. Po- tential-dependent anion adsorption-desorption waves via the nonfaradaic current were obtained by means of cyclic voltammetry at Au coltoid-modified gold electrodes in the potential range of -2.00-600 mV. The adsorption sequence in the order of adsorption peak potentials (Epa) is OH- >citrate3 ->H2.O4- >Cl->SO42.>ClO4->NO3-. Among them, citrate3- exhibited an en- tirely irreversible adsorption. A rise in temperature can increase the rates of adsorption-desorp- tion and improve the reversibility of the adsorption-desorption of Cl-, SO42., ClO4-, NO3- and H2.O-4. The adsorption peak potentials shifted more negatively for Ca. 63 mV as the anion con- centrations were increased by a decade factor. The change of pH from 7 to 1 slightly affected the adsorption peak potentials of Cl- and NO3-. Au colloids with a smaller size (16 nm) gave rise to a better reversibility of the adsorption-desorption process and lower adsorption currents. The ex- perimental results of citrate ions adsorption on Au colloid surface show that Au colloids with a smaller size prepared by sodium citrate method exhibited a higher stability in the solution in com- parison to those with larger sizes because of its higher ratio of charge/mass. In other words, the smaller gold nanoparticles are covered with citrate ions monolayer that can also be formed at larg- er gold nanoparticles by means of electrochemical scan.

关键词： Colloidal gold Self-assembled monolayer Gold electrode Electrode dynamics

Solid state synthesis and nonlinear optical properties of MoS_4Ag_2.(PPh_3)_33 and MoS_4Cu_2.g (PPh_3)_3 Br

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Chinese Science Bulletin 1997年第14期42卷 1184-1189页

作者： LONG Deliang, SHI Shu, MEI Yuhua and XIN XinquanDepartment of Chemistry, State key {2. of coordination Chemistry, nanjing university, nanjing 2.0093, china Department of Chemistry State Key Laboratory of Coordination Chemistry Nanjing University Nanjing China

IN recent years, there has been considerable interest in the research of nonlinear optical(NLO) materials. The researches were mainly focused on semiconductors, polymers and dis-crete organic molecules. In contrast, inorganic clusters, a very promising group of com-pounds, have received little attention. It was demonstrated in our previous works thatMo(W)-Cu(Ag)-S cluster compounds exhibit strong third-order nonlinear optical properties.

关键词： cluster compound solid state synthesis nonlinear optical property-