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	1. One-step hydrothermal synthesis of Sc2Mo3O12: Tb3+,Dy3+, Eu3+ nanosheets and their multicolor tunable luminescence
	yangjun,zhaobei
	Chemistry 27 May 2016
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	Abstract:Novel Sc2Mo3O12: Tb3+,Dy3+, Eu3+ phosphors have been synthesized via one-step hydrothermal route using glycine as surfactant. the samples were characterized by X-ray diffraction (XRD), field emission-scanning electron microscopy (FE-SEM), photoluminescence (PL), and photoluminescent excitation spectra (PLE). It is found that various additives have a profound influence on crystal phase, morphology and emission intensity of final products. Furthermore, the photoluminescence of RE3+ (RE3+ = Tb3+, Dy3+, and Eu3+) doped Sc2Mo3O12 samples were studied in detail. The energy transfer MoO42-→Tb3+ (Dy3+) →Eu3+ and multicolor tunable emission occur by changing the ratio of Tb3+/Eu3+ or Dy3+/Eu3+ under a single wavelength excitation. Moreover, the energy transfer mechanism from Tb3+ to Eu3+ and from Dy3+ to Eu3+ were ascribed to dipole-dipole interactions and the energy transfer efficiency from Tb3+ to Eu3+ up to 95.3% which better than from Dy3+ to Eu3+(87.5%). Tunable luminescence makes Sc2Mo3O12: Tb3+, Dy3+, Eu3+ phosphors have great potential application in the fields such as solid state lighting and field emission displays.
	TO cite this article:yangjun,zhaobei. One-step hydrothermal synthesis of Sc2Mo3O12: Tb3+,Dy3+, Eu3+ nanosheets and their multicolor tunable luminescence[OL].[27 May 2016] http://en.paper.edu.cn/en_releasepaper/content/4695125


	2. Electronic Excitation of Ru-N3 Dye Interfaced with TiO2Nanoparticles
	JU Ming-Gang, LIANG Wan-Zhen
	Chemistry 24 May 2016
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	Abstract:Reviews: A step-by-step theoretical protocol based on the density functional theory (DFT) and time-dependent DFT (TD-DFT) have been performed to study a Ruthenium polypyridyl complexes named N3 sensitized TiO2 solar cell including dye excitations and electron injection. Hybrid DFT XC functional B3LYP and PBE0, and recently proposed long-range corrected XC functional Cam-B3LYP have been applied, which provide reliable interfacial distances and interaction energies, and predict a significant excited-state charge transfer from the donor to the acceptor. Our study reveals three binding structures of the sensitizer anchored on a TiO2 surface. For the different anchoring modes, the possibility of a favorable electron transfer from the excited dye to the semiconductor conduction band (CB) are suggested. The three possible pathways are from the different parts of the excited dye to nanoparticle (TiO2){38}, resulting in the different timescale of the electron injections.
	TO cite this article:JU Ming-Gang, LIANG Wan-Zhen. Electronic Excitation of Ru-N3 Dye Interfaced with TiO2Nanoparticles[OL].[24 May 2016] http://en.paper.edu.cn/en_releasepaper/content/4694658

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	3. Theoretical Investigations of 4-dimethylaminobenzonitrile (DMABN): Dual fluorescence and Resonance Raman spectras
	LIU Li-Qian, LIANG Wan-Zhen
	Chemistry 24 May 2016
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	Abstract: 4-dimethylaminobenzonitrile (DMABN) has been intensively studied due to its solvent-dependent dual fluorescence and nonlinear optical properties. This work presents a systematically theoretical investigations on the electronic structure property, dual fluorescence mechanism and NRS and RRS spectra in gas phase and methanol solvent. The density functional theory or time-dependent DFT (TDDFT) coupled with polarizable continuum model (PCM) is adopted to describe the molecule in methanol solution. It is concluded that the solvent and hydrogen bond effects reduce the energy gap of locally excited (LE) and charge transfer (CT) states; The fluorescence mechanism of DMABN in gas phase and methanol solvent is different in gas phase, the single normal fluorescence is chiefly emitted from the LE state through the internal conversion from CT to LE state. In methanol solvent, the normal fluorescence may be emitted from the LE state and the redshifted fluorescence comes from the CT state. It is confirmed that the intramolecular charge transfer (ICT) reaction from the LE state to CT state leads to the dual fluorescence in polar solvent. To further validate our conclusion, NRS and RRS calculated with the vertical gradient (VG) approximation which nicely yields the positions and relative magnitude order of band intensities compared with the experiment. With the inclusion of the strong vibration coupling of the LE and CT states, and the Herzberg-Teller (HT) vibronic coupling effect, the calculated spectra agree well with the experimental spectra..
	TO cite this article:LIU Li-Qian, LIANG Wan-Zhen. Theoretical Investigations of 4-dimethylaminobenzonitrile (DMABN): Dual fluorescence and Resonance Raman spectras[OL].[24 May 2016] http://en.paper.edu.cn/en_releasepaper/content/4694655


	4. Acetato-bridged dinuclear lanthanide complexes constructed from Salen and β-diketonate ligands: synthesis, structure, and single molecule magnet behavior
	YAN Pengfei,GAO Ting,WU Jie
	Chemistry 24 May 2016
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	Abstract:A unique lanthanide-based single-molecule magnet (SMM) has been synthesized through Salen and β-diketonate ligands, namely, Dy2(salen)2(TTA)4(OAc)2, H2salen = N,N'-ethylenebis(salicylideneimine), Htta = thenoyl(trifluoro)acetonate). Single crystals were achieved by solution diffusion at room temperature. The structure of the complex was determined by X-ray crystallographic studies and magnetic property was investigated. The two Dy(III) ions in the molecules are bridged by two acetate groups. The strong electron-withdrawing ligand HTTA leads to this novel dinuclear dysprosium single-molecule magnet with a relatively large energy barrier (>40 K). As expected for SMM-like behavior, an Arrhenius fit to the data gives an effective relaxation barrier of Ueff = 45.97 K with a pre-exponential factor of τ0 =5.07 × 10-8 s.
	TO cite this article:YAN Pengfei,GAO Ting,WU Jie. Acetato-bridged dinuclear lanthanide complexes constructed from Salen and β-diketonate ligands: synthesis, structure, and single molecule magnet behavior[OL].[24 May 2016] http://en.paper.edu.cn/en_releasepaper/content/4694600


	5. Facile hydrothermal synthesis of Tb2(MoO4)3:Eu3+ phosphors: controllable microstructures, tunable emission colors, and the energy transfer mechanism
	Yang Jun,Zhou Lei
	Chemistry 23 May 2016
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	Abstract:Novel microsphere-like Tb2(MoO4)3 microstructures have been successfully synthesized by the facile hydrothermal method with the subsequent calcination treatment for the first time. The shape and size of Tb2(MoO4)3 precursors' microstructure can be tuned effectively by altering the amount of citric acid (Cit3-), and the possible formation mechanisms of various microstructures are also put forward, finding that Cit3- plays a key role in controlling precursors' morphologies. By doping Eu3+ ions, Tb2(MoO4)3:Eu3+ phosphors exhibit excellent luminescent properties with tunable emission colors (green→yellow→red) resulted from the effective energy transfer from Tb3+ to Eu3+. Particularly, we have also investigated the energy transfer mechanism (Tb3+→Eu3+) in detail, finding that the process mainly takes place via the dipole-dipole interaction based on a few theoretical simulations. Due to the facile preparation process, as well as intense tunable emission colors, these novel phosphors are expected to find a broad range of applications in future color displays and light-emitting devices.
	TO cite this article:Yang Jun,Zhou Lei. Facile hydrothermal synthesis of Tb2(MoO4)3:Eu3+ phosphors: controllable microstructures, tunable emission colors, and the energy transfer mechanism[OL].[23 May 2016] http://en.paper.edu.cn/en_releasepaper/content/4694030


	6. Synthesis and Ferroelectric Properties of a Couple of Chiral Europium(III) Complexes
	ZHANG Xiaopeng,LIU Jian,LI Chenghui,YOU Xiaozeng
	Chemistry 22 May 2016
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	Abstract:Molecular-based ferroelectric materials have received considerable interest due to their larger spontaneous polarization and convenient structural modification. In this work, a couple of pinene-containing europium(III) complexes, Eu(TTA)3L1a (1a) and Eu(TTA)3L1b (1b) (TTA = thenoyltrifluoroacetonate, L1a = (+)-4,5-bis(pinene)-2,2'-bipyridine, (-)-4,5-bis(pinene)-2,2'-bipyridine), were prepared and characterized. The chiral characterization was confirmed by single crystal X-ray diffraction and distinct electronic circular dichroism (CD) signals. Complex 1a crystallizes in the polar space group P1, and a strongly distorted square-antiprism environment around the EuIII ion is exhibited. Due to the non-centrosymmetric structure, distinct ferroelectric behavior of complex 1a was observed as expected.
	TO cite this article:ZHANG Xiaopeng,LIU Jian,LI Chenghui, et al. Synthesis and Ferroelectric Properties of a Couple of Chiral Europium(III) Complexes[OL].[22 May 2016] http://en.paper.edu.cn/en_releasepaper/content/4691661


	7. Affinity Zirconium Oxide-Silica Composite Monolithic Column for Selective Enrichment and Determination of Nucleosides Modification
	JIANG Han-Peng,CHU Jie-Mei,LAN Meng-Dan,LIU Ping,YANG Na,ZHENG Fang,FENG Yu-Qi,YUAN Bi-Feng
	Chemistry 20 May 2016
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	Abstract:More than 140 modified nucleosides have been identified in RNA. Determination of endogenous modified nucleosides in biological fluids may serve as non-invasive disease diagnostic strategy. However, detection of the modified nucleosides in biological fluids is challenging, especially for the low abundant modified nucleosides due to the serious matrix interferences of biological fluids. Here, we developed a facile preparation strategy and successfully synthesized zirconium oxide-silica (ZrO2/SiO2) composite capillary monolithic column that exhibited excellent performance for the selective enrichment of cis-diol-containing compounds. Compared with the boronate-based affinity monolith, the ZrO2/SiO2 monolith showed ~ 2 orders of magnitude higher extraction capacity and can be used under physiological pH (pH 6.5-7.5). Using the prepared ZrO2/SiO2 composite monolith, we further established an online solid-phase microextraction (SPME) in combination with liquid chromatography-mass spectrometry (online SPME-LC-MS/MS) analysis for the comprehensive profiling nucleosides modification in human urine. Our results showed that 68 cis-diol-containing nucleosides and ribosylated compounds were identified in human urine, which is, to the best of our knowledge, the most numbers of cis-diol-containing compounds were determined in a single analysis. It is worth noting that four modified nucleosides were discovered in the human urine for the first time. In addition, the quantification results showed that compared to healthy controls, 16, 11 and 7 ribose conjugates increased more than 2 folds in the urine of gastric cancer, esophagus cancer and lymphoma, respectively. These increased ribose conjugates in cancer patients suggested that the metabolism of these compounds may have important roles in carcinogenesis as well as in serving as indicator of cancers.
	TO cite this article:JIANG Han-Peng,CHU Jie-Mei,LAN Meng-Dan, et al. Affinity Zirconium Oxide-Silica Composite Monolithic Column for Selective Enrichment and Determination of Nucleosides Modification[OL].[20 May 2016] http://en.paper.edu.cn/en_releasepaper/content/4691784


	8. Negative Correlation of RNA Epigenetic Modifications of N6-methyladenosine and 5-methylcytosine with Aging
	JIANG Han-Peng,XIONG Jun,HUANG Wei,LAN Meng-Dan,ZENG Huan,FENG Yu-Qi,YUAN Bi-Feng
	Chemistry 20 May 2016
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	Abstract:Aging is characterized by progressive decline in physiology and function of adult tissues. Previous studies demonstrated DNA methylation is related to aging. In addition to DNA methylation, reversible RNA modification has recently been proposed to represent another realm for biological regulation in the form of "RNA epigenetics". However, the correlation of emerging RNA epigenetic modifications in aging process is still a mystery. Here we developed an on-line trapping/capillary hydrophilic-interaction liquid chromatography/electrospray ionization-mass spectrometry method for ultra-sensitive and simultaneous quantification of RNA epigenetic modifications of N6-methyladenosine (m6A) and 5-methylcytosine (5-mC) from human blood. We analyzed the contents of m6A and 5-mC in RNA of blood from 260 healthy persons aged from 0 to 88 years old. The results showed that both m6A and 5-mC contents were significantly decreased and highly correlated with aging process. We then established RNA epigenetic modifications age models according to m6A and 5-mC contents with an mean absolute deviation of 6.7 years for m6A and 8.0 years for 5-mC. This study demonstrated RNA epigenetic modifications of m6A and 5-mC represents strong and reproducible marks of chronological age, which could be potentially applied in health assessment and prevention of diseases.
	TO cite this article:JIANG Han-Peng,XIONG Jun,HUANG Wei, et al. Negative Correlation of RNA Epigenetic Modifications of N6-methyladenosine and 5-methylcytosine with Aging[OL].[20 May 2016] http://en.paper.edu.cn/en_releasepaper/content/4691753


	9. Copper-catalyzed one-pot reaction of benzyl cyanide and DMF to form N,N-dimethyl benzamide and benzonitriles cyanation of aryl iodides with benzyl cyanide under atmosphere
	Zhou Xiangge
	Chemistry 20 May 2016
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	Abstract:Amidation of benzyl cyanide with N,N-dimethylformamide (DMF) and cyanation of aryl iodides were catalyzed by Cu2O with 1,10-phenanthroline as a ligand under an oxygen atmosphere. A variety of N, N-dimethyl benzamides and benzonitriles were obtained in yields up to 84% and 73%.
	TO cite this article:Zhou Xiangge. Copper-catalyzed one-pot reaction of benzyl cyanide and DMF to form N,N-dimethyl benzamide and benzonitriles cyanation of aryl iodides with benzyl cyanide under atmosphere[OL].[20 May 2016] http://en.paper.edu.cn/en_releasepaper/content/4692709


	10. Pd(II)-Catalysed Monoarylation of 2-Phenylpyridine N-Oxides with Iodobenzene in Water
	Zhang Wei,Zhou Xiangge
	Chemistry 20 May 2016
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	Abstract:A Pd(II)-catalysed activation and arylation of C(sp2)-H bond directed by pyridine N-oxide in water is achieved with high regioselectivity to form monoarylated products in yields up to 91%. The wide substrate scope highlights the flexibility of the catalyst.The reaction mechanism is proposed.
	TO cite this article:Zhang Wei,Zhou Xiangge. Pd(II)-Catalysed Monoarylation of 2-Phenylpyridine N-Oxides with Iodobenzene in Water[OL].[20 May 2016] http://en.paper.edu.cn/en_releasepaper/content/4691373

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