Abstract:Functionalized ionic liquid 1-(2-chloroethyl)-3-methylimidazolium chloride ([ClC2MIM]Cl) used as the powerful and nonderivatizing solvent for dissolution and regeneration of cellulose is reported here. Microcrystalline cellulose can be dissolved in this functionalized ionic liquid without activation or pretreatment with the dissolubility of 20% at 100?C by conventional heating. Cellulose can be easily regenerated from its ionic liquid solutions by addition of deionized water. After its regeneration, the ionic liquids can be recovered and reused. The regenerated cellulose was characterized by XRD, FT-IR, TGA and SEM. The XRD, FT-IR indicated that the regenerated cellulose has the same chemical structure with the initial one. But the SEM shows the morphology of regenerated cellulose is significantly changed from its microfibrils to relatively homogeneous amorphous microstructures. The TGA exhibited that the regenerated sample has a lower onset temperature at 242.4?C for decomposition and gives a higher residual masses after the decomposition step. The possible mechanism of the dissolution of cellulose in [ClC2MIM]Cl is also discussed in this paper. Therefore, this research has shown that ionic liquid [ClC2MIM]Cl can be used as nonderivatizing solvents for cellulose.

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	1. Dissolution and regeneration of cellulose in a functionalized ionic liquid 1-(2-chloroethyl)-3-methyl imidazolium chloride
	HUANG Mingming,CHEN Feiran,MA Hao,ZHOU Bo,LI Yiqun
	Chemistry 15 April 2013
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	Abstract:Functionalized ionic liquid 1-(2-chloroethyl)-3-methylimidazolium chloride ([ClC2MIM]Cl) used as the powerful and nonderivatizing solvent for dissolution and regeneration of cellulose is reported here. Microcrystalline cellulose can be dissolved in this functionalized ionic liquid without activation or pretreatment with the dissolubility of 20% at 100?C by conventional heating. Cellulose can be easily regenerated from its ionic liquid solutions by addition of deionized water. After its regeneration, the ionic liquids can be recovered and reused. The regenerated cellulose was characterized by XRD, FT-IR, TGA and SEM. The XRD, FT-IR indicated that the regenerated cellulose has the same chemical structure with the initial one. But the SEM shows the morphology of regenerated cellulose is significantly changed from its microfibrils to relatively homogeneous amorphous microstructures. The TGA exhibited that the regenerated sample has a lower onset temperature at 242.4?C for decomposition and gives a higher residual masses after the decomposition step. The possible mechanism of the dissolution of cellulose in [ClC2MIM]Cl is also discussed in this paper. Therefore, this research has shown that ionic liquid [ClC2MIM]Cl can be used as nonderivatizing solvents for cellulose.
	TO cite this article:HUANG Mingming,CHEN Feiran,MA Hao, et al. Dissolution and regeneration of cellulose in a functionalized ionic liquid 1-(2-chloroethyl)-3-methyl imidazolium chloride[OL].[15 April 2013] http://en.paper.edu.cn/en_releasepaper/content/4538016


	2. Synthesis, Characterization and Thermal Stability of the Aluminum Boroxine-linked Compound with N-aryl Substituted β-Diketiminato Ligand
	HAO Pengfei,YANG Zhi
	Chemistry 27 February 2013
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	Abstract:The reaction of LAlH2 (L = HC(CMeNAr)2, Ar = 2,6-iPr2C6H3) (1) with 2-trifluoromethylphenylboronic acid resulted in the boroxine-linked organic aluminum compound LAl[OB(2-CF3C6H4)]2(μ-O) (2). Compound 2 crystallizes in orthorhombic, space group Pbca with a = 12.2112(16), b = 17.879(2), c = 39.022(5) Å, α = β = γ = 90Å, V = 8520(2) Å3, Z = 8, Dc = 1.254 Mg/m3, μ (Mo Kα) = 0.114 mm-1, F(000) = 3376, R = 0.0726, wR = 0.1513. 2 was characterized by 1H NMR, IR, elemental analysis, and single crystal X-ray structural analysis. Furthermore, 2 was studied by TG analysis. CCDC: 918118
	TO cite this article:HAO Pengfei,YANG Zhi. Synthesis, Characterization and Thermal Stability of the Aluminum Boroxine-linked Compound with N-aryl Substituted β-Diketiminato Ligand[OL].[27 February 2013] http://en.paper.edu.cn/en_releasepaper/content/4523929

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	3. Effect of Drying Time on the Antimony Doped Tin Dioxide Coated Titanium Electrode
	WANG Yun-Hai,ZHOU Zhe,LI Guo,CHEN Qing-Yun
	Chemistry 06 January 2013
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	Abstract:The antimony doped tin dioxide coated titanium electrodes were prepared by dip-coating pyrolysis method with different drying time. The effect of drying time on the electrode activity, morphology, crystallinity and composition were discussed. The results indicated that electrode prepared by drying 10 minutes had higher activity towards phenol degradation than those prepared by drying 0 or 30 minutes. The relation between the activity and oxygen vacancies concentration was discussed. The TG-DTA analysis was used to monitor the reactions occurred during the electrode preparation. The results showed that there were three endothermic or exothermal peaks and the possible reactions were discussed.
	TO cite this article:WANG Yun-Hai,ZHOU Zhe,LI Guo, et al. Effect of Drying Time on the Antimony Doped Tin Dioxide Coated Titanium Electrode[OL].[ 6 January 2013] http://en.paper.edu.cn/en_releasepaper/content/4500284


	4. The Use of Fluorinated Hydrocarbons as Reference Standards in 19F NMR Calculation
	Yang Miyi,Li Songqing,Gao Haixiang,Zhou Wenfeng
	Chemistry 27 December 2012
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	Abstract:A new method to improve the precision of fluorine nuclear magnetic resonance (NMR) calculations of reference standards was studied using different quantum chemistry methods and basis sets on a large number of compounds, which are widely used and possess well-known chemical shifts. After comparing the calculated data and experimental results, we found that perfluoroethane and 4-fluorostyrene are suitable reference standards for fluorine atoms bonded to sp3 and sp-sp2 carbons, respectively. In our final experiments, we used the PBEL/6-311++ (3df, 2pd)//B3LYP/6-31G (d, p) level of theory and the above two compounds as reference standards for the final optimized method. This novel method creates new paradigms for NMR shift calculations and has increased the calculation precision and accuracy.
	TO cite this article:Yang Miyi,Li Songqing,Gao Haixiang, et al. The Use of Fluorinated Hydrocarbons as Reference Standards in 19F NMR Calculation[OL].[27 December 2012] http://en.paper.edu.cn/en_releasepaper/content/4508294


	5. Microwave synthesis of aqueous mercaptoundecanoic acid (MUA)-cappeded CdTe QDs and its applications in cancer cell imaging
	DONG Chaoqing,Ren Jicun
	Chemistry 25 December 2012
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	Abstract:In this paper, a one-step approach for aqueous synthesis of highly luminescent semiconductors CdTe QDs was described in microwave irradiation system, using a long-chain thiols-mercaptoundecanoic acid (MUA) as surface ligand. The synthetic conditions were systematically investigated. The as-prepared MUA-capped QDs were characterized by various spectroscopy techniques, transmission electron microscopy (TEM) and X-ray powder diffraction (XRD). The experimental results document that MUA-capped CdTe QDs possesses small diameter, good stability, high luminescence and long lifetime. Particularly, it was confirmed with fluorescence correlation spectroscopy (FCS) that compared with other ligand, MUA formed a thicker ligand layer on QDs surface, which will help to their stability and conjugation with biomolecules.
	TO cite this article:DONG Chaoqing,Ren Jicun. Microwave synthesis of aqueous mercaptoundecanoic acid (MUA)-cappeded CdTe QDs and its applications in cancer cell imaging[OL].[25 December 2012] http://en.paper.edu.cn/en_releasepaper/content/4507560


	6. Two novel Cr(III) complexes TBA[Cr(SA)2(en)] and [Cr(SA)(en)2]Br：Synthesis, characterization and kinetics properties
	Zhang Yujiao,Liu Bin,Yang Binsheng
	Chemistry 17 December 2012
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	Abstract:Two novel Cr(III) complexes TBA[Cr(SA)2(en)] (I) and [Cr(SA)(en)2]Br (II) have been synthesized (TBA=Tetrabutylammonium, H2SA=Salicylic acid, en=ethylenediamine) and determined by X-ray crystallography. The competition reaction with EDTA or apoovotransferrin (apoOTf) was monitored by UV-Visible and fluorescence spectra at 37 C in 0.01 M Tris-HCl pH=7.4. The rate constant k for the reaction with EDTA is kEDTA(I)=(1.2±0.03)×10-3 and kEDTA(II)=(2.3±0.07)×10-3 M-1S-1, while the rate constant k for the reaction with apoovotransferrin is kOTf(I) =(8.9±0.3)×10-2, kOTf(II)= (1.5±0.07)×10-1 M-1S-1, respectively.The bond length, steric hindrance or electrostatic repulsion is responsable for the different kinetics behavior of the title complexes.
	TO cite this article:Zhang Yujiao,Liu Bin,Yang Binsheng. Two novel Cr(III) complexes TBA[Cr(SA)2(en)] and [Cr(SA)(en)2]Br：Synthesis, characterization and kinetics properties[OL].[17 December 2012] http://en.paper.edu.cn/en_releasepaper/content/4503497


	7. Facile fabrication of a superamphiphobic surface on the aluminum substrate
	Zhang Xiyao,Liu kesong*,Jiang Lei
	Chemistry 17 December 2012
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	Abstract:Self-cleaning surfaces have drawn a lot of interest for both fundamental research and practical applications. Superhydrophobic coatings with contact angles greater than 150 and roll-off angles below 10 for water have been developed, based on low-energy surfaces and roughness on the nano- and micrometer scales. However, these surfaces are still wetted by organic liquids such as surfactant-based solutions, alcohols, or alkanes.We designed an easily fabricated, transparent, and oil-rebounding superamphiphobic surface on the aluminum substrate. We also discuss the fogging test exhibits that the superamphiphobic surface had no fogging .
	TO cite this article:Zhang Xiyao,Liu kesong*,Jiang Lei. Facile fabrication of a superamphiphobic surface on the aluminum substrate[OL].[17 December 2012] http://en.paper.edu.cn/en_releasepaper/content/4501074


	8. Synthesis and photophysical properties of NIR-emitting neodymium (III)-complexes containing fluorene and carbazole functionalized phenanthroline
	Liu Yu,He Juan,Xing Kongqiang,Zhu Weiguo,Wang Yafei
	Chemistry 16 December 2012
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	Abstract:Three novel neodymium (III) complexes of (G1G2FuPhen)Nd(TTA)3 with 2-thenoyltrifluoroacetone (TTA) ligand served as main sensitizers, and fluorene and/or carbazole-functionalized phenanthroline as the synergistic ligand were synthesized and characterized by elemental analysis, infrared spectroscopy and thermal analyses. These neodymium (III) complexes presented better thermal stability, and similar UV-vis absorption and photoluminescence spectra in dichloromethane. Two intense UV-vis absorption bands at around 272 nm and 343 nm, Upon excitation at the maximum absorption of the complexes, they all show the characteristic near-infrared (NIR) luminescence at about 880, 1060, 1330 nm of the corresponding Nd3+ ions, which is due to ef?cient energy transfer from the ligands to the central Nd3+ ions via an antenna effect. Moreover, the in?uence of ligands on the luminescence properties of the complexes is further discussed.
	TO cite this article:Liu Yu,He Juan,Xing Kongqiang, et al. Synthesis and photophysical properties of NIR-emitting neodymium (III)-complexes containing fluorene and carbazole functionalized phenanthroline[OL].[16 December 2012] http://en.paper.edu.cn/en_releasepaper/content/4504974


	9. Influence of Fluoride-doped Tin Oxide Interlayer on Ni-Sb-SnO2/Ti Electrodes
	LI Guo,WANG Yun-Hai,CHEN Qing-Yun
	Chemistry 11 December 2012
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	Abstract:In the present work, fluoride doped tin oxide (FTO) as an interlayer was introduced into nickel and antimony co-doped tin dioxide (NATO) coated titanium electrodes to investigate the influence of FTO interlayer on the structural properties and lifetime performance of the electrodes. Scanning electron microscopy (SEM) and X-ray diffraction (XRD) techniques were used to characterize the morphology and crystal structure of the electrodes with or without FTO interlayer. The electrode surface became smoother with FTO interlayer introduced while the crystallite size reduced. Electrochemical impedance spectroscopy (EIS) was also adopted to analyze the electrodes' electrochemical behavior. With FTO interlayer introduced, the formation of titanium dioxide insulating layer on the titanium substrate was significantly retarded during the anodic process. The accelerated lifetime tests presented that the lifetime of the electrodes with proper FTO interlayer was 6 times longer than that without FTO interlayer. The mechanisms for the electrodes' lifetime enhancement with FTO interlayer were discussed.
	TO cite this article:LI Guo,WANG Yun-Hai,CHEN Qing-Yun. Influence of Fluoride-doped Tin Oxide Interlayer on Ni-Sb-SnO2/Ti Electrodes[OL].[11 December 2012] http://en.paper.edu.cn/en_releasepaper/content/4500527


	10. Synthesis, kinetic stabilities and potential anti-obesity activity of [Cr(III)(SA)(TETA)]ClO4
	Liu Bin,Zhang Yujiao,Yang Binsheng
	Chemistry 11 December 2012
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	Abstract:In this paper one chromium(III) complexes, [Cr(III)(SA)(TETA)]ClO4 (I), was synthesized, and the structure was determined by X-ray crystallography (en=ethylenediamine, TETA= triethylenetetramine). Its kinetic stabilities in different media and different conditions (pH, H2O2, EDTA or visible light) were studied by means of UV-visible spectroscopy. Then its efficacy to prevent obesity was tested using a diet-induced obesity rat model. The primary results indicate that the compound effectively suppress the increases in body mass and adipose mass, without any noticeable toxic effect. It also prevented increases in the plasma triglyceride, cholesterol, and low density lipoprotein (LDL) concentrations.
	TO cite this article:Liu Bin,Zhang Yujiao,Yang Binsheng. Synthesis, kinetic stabilities and potential anti-obesity activity of [Cr(III)(SA)(TETA)]ClO4[OL].[11 December 2012] http://en.paper.edu.cn/en_releasepaper/content/4502896

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