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Synthesis,Crystal Structure and Luminescent Property of a New Indium(Ⅲ)coordination Polymer

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Chinese Journal of Structural chemistry 2016年第11期35卷 1723-1727页

作者：杨贺姜阳徐波李村成 Key laboratory of Chemical Sensing & Analysis in Universities of Shandong (University of Jinan) School of Chemistry and Chemical EngineeringUniversity of Jinan

A new coordination complex [In（pda）1.5（bpy）]n （1, H2pda = 1,4-phenylenediacetic acid, bpy = 2,2＇-bipyridine） has been synthesized under hydrothermal conditions and characterized by IR spectrum, elemental analysis, PXRD and single-crystal X-ray diffraction analysis. Crystal data for the title complex are as follows： monoclinic system, space group P21/n with a = 11.8015（7）, b = 15.9551（10）, c = 11.8858（8）A^°, β = 94.844（6）°, V = 2230.0（2） A^°3, Mr = 559.25, Z = 4, F（000） = 1124, Dc = 1.666 g/cm^3, μ（MoKα） = 1.106 mm^-1, R = 0.0269 and wR = 0.0569 for 4534 observed reflections with I 〉 2σ（I）. Complex 1 displays a 3D supermolecular structure based on the 1D zizag chains. Fluorescence spectrum measurement indicates that complex 1 shows strong fluorescence emission with a maximum peak at 447 nm in the solid state at room temperature.

关键词： coordination complex crystal structure luminescence indium

Hydrothermal Synthesis and Crystal Structure of Lanthanum Orotate Supermolecule with A Honeycomb Structure Constructed from Mononuclear Molecules via Hydrogen Bonds

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Journal of Rare Earths 2007年第6期25卷 770-774页

作者：李艳秋鞠艳玲李夏张婷婷王春燕余京波 Department of chemistry Capital Normal University

A new complex of lanthanum orotate [La（C5H3N2O4）2（OH）（H2O）6 ]·2（C5H4N2O4）·9H2O was synthesized using a hydrothermal method. The crystal structure was determined with help of single crystal X-ray diffraction analysis. The complex crystallized in orthorhombic system, Cmc2（1） space group. In the complex, the center lanthanum （Ⅲ） ion was nine-coordinated with coordination geometry of a distorted monocapped square antiprism, in which two of the nine coordinated oxygen atoms were from two orotate ligands in a monodentate mode, one oxygen atom from a hydroxyl, and the others from six coordinated water molecules. The mononuclear complex [La（C5H3N2O4）2（OH）（H2O）6 ]·2（C5H4N2O4）·9H2O was linked through the hydrogen bonds into an infinite supermolecular honeycomb structure.

关键词： lanthanum complex orotic acid hydrothermal synthesis crystal structure rare earths

Pyrazole-3-carboxylic Acid Manganese Complex: Syntheses and Its highly Efficient Heterogeneous Catalysis for the Epoxidation of Alkenes撤稿

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Chinese Journal of Structural chemistry 2019年第4期38卷 621-628页

作者：张海潮范志栋李文玲辛纳纳姚清侠崔传生黄现强 Shandong Provincial Key laboratory of Chemical Energy Storage and Novel Cell Technology School of Chemistry & Chemical EngineeringLiaocheng University

One inorganic-organic hybrid manganese complex Mn（Hpca）2（phen）·3 H;O（1） based on pyrazole-3-carboxylic acid（H2 pca） and phenanthroline（phen） has been synthesized and fully characterized by single-crystal X-ray diffraction（SXRD）, powder X-ray diffraction（PXRD）, infrared spectroscopy（IR）, thermal gravity analysis（TGA） and elemental analyses. Complex 1 crystallizes in the monoclinic system, space group P2;/c with Z = 4, a = 10.3170（9）, b = 13.1061（12）, c = 17.6919（15） ?, V = 2272.1（3） ?;, F（000） = 1052, D;= 1.495 g/cm;, μ = 0.635 mm;, the final R = 0.0428 and wR = 0.0853. In the crystal structure, the mononuclear Mn;center was coordinated by two Hpca-and one phen ligands, and shows a distorted {MnO;N;} octahedral coordination geometry. In the supermolecular structure, the independent units are entrained within several hexanuclear chair-like water clusters by the O-H···O and N-H···O hydrogen bonding interactions and finally form the three-dimensional framework. Notably, as a robust heterogeneous catalyst, complex 1 exhibits excellent catalytic performance in the epoxidation of alkenes with peroxyacetic acid as the oxidant（Conv. up to 97.7%, Sele. up to 98.9%）. Additionally, the catalyst can be reused without losing its activity after three runs catalytic cycle.

关键词： manganese complex crystal structure olefin epoxidation

High production of fatty alcohols in Yarrowia lipolytica by coordination with glycolysis

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Science China chemistry 2019年第8期62卷 1007-1016页

作者： Jin-Lai Zhang Ying-Xiu Cao Yang-Zi Peng Cong-Cong Jin Qiu-Yan Bai Ruo-Si Zhang Duo Liu Ying-Jin Yuan Frontier Science Center for Synthetic Biology and Key laboratory of systems Bioengineering (Ministry of Education) Tianjin University Tianjin 300072China Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) School of Chemical Engineering and Technology Tianjin UniversityTianjin 300072China

Fatty alcohol biosynthesis by oleaginous microbes was a promising alternative to the petroleum or other non-renewable resources-based process. However, low titer and yield hamper the further industrial and commercial applications. Here, we developed an efficient strategy to coordinate fatty alcohol with glycolysis which achieved a ‘pull-and-push’ effect to improve fatty alcohol production. Transcript profiling indicated that genes in carbohydrate metabolism were up-regulated significantly in response to high fatty alcohol production. Based on it, 11 glycolysis promoters were screening to express fatty acyl-CoA reductase(FAR) to relate the fatty alcohol production with the up-regulated carbohydrate metabolism, and the fatty alcohol production reached 557 mg/L when FAR was expressed by the promoter of PFBAin. RNA-seq and qRT-PCR analysis demonstrated that a ‘pull-and-push’ effect caused by the coordination system dynamically enhanced the product synthesis flux from top to bottom, which was also testified and intensified by doubled glucose concentration. After manipulating structural and regulatory genes of lipid metabolism, the final strain achieved up to 5.75 g/L fatty alcohol production from modified YPD medium(containing 91 g/L glucose) in shake flasks, which represented the highest titer reported to date. This work offered a feasible and effective reference for dynamic manipulation of fatty acid-derived chemicals synthesis.

关键词： fatty alcohol biosynthesis coordinative expression Yarrowia lipolytica fatty acyl-CoA reductase(FAR) metabolic engineering