Synthesis of Ruthena-polycyclic Complexes by Ruthenium-Vinylcarbene Complex

研究了配位不饱和的钌杂S-顺丁二烯化合物[ru(CHC(PPH3)CH(2-Py))Cl2PPH3]bf4(1)与水、甲醇、苯胺和2-巯基吡啶等亲核试剂的[4+1]关环反应,合成了一系列有趣的钌杂多环化合物[ru(CHC(PPH3)CHr(2-Py))Cl(PPH3)2]bf4[r=OH(2),OME(3),和nHPH(4)]与[ru(CHC(PPH3)CH(S(2-Py))(2-Py))PPH3(S(2-Py)]bf4(5).此外,将配位不饱和的钌配合物1与三苯基膦配体反应,制备了类似于氮杂金属萘的配位饱和化合物[ru(CHC(PPH3)CH(2-Py))Cl2(PPH3)2]bf4(6).6与Hbf4反应可生成金属杂环结构类似的分子内含三氯桥的双钌核配合物[{ru(CHC(PPH3)CH(2-Py))PPH3}2(μ-Cl)3](bf4)3(7).以上产物均通过核磁(nMr)与元素分析进行了表征,并解析了部分产物的X射线单晶结构.Treatment of ruthenium-vinylcarbene complex [Ru(CHC(PPh3)CH(2-Py))Cl2 PPh3 ]BF4(1) and PPh3 with nucleophilic reagents H2 O,CH3 OH,NH2 Ph,or 2-mercaptopyridine led to the ruthena-polycyclic complexes [Ru(CHC(PPh3)CHR(2-Py))Cl(PPh3)2 ]BF4 [R = OH(2),R = OCH3(3),R = NHPh(4)] or [Ru(CHC(PPh3)CH(S(2-Py))(2-Py))PPh3(S(2-Py)]BF4(5).They are stable under air at solid state.CH3 OH in the reaction is not only the reagent but also the solvent and the reaction must be heated at 60 ℃ for 6 h.All the other reactions were carried out at room temperature in CH2Cl2.The crystals of 4 and 5 were grown from CH2 Cl2 and CHCl3 solutions layered with diethyl ether,respectively.The structures 4 and 5 were determined by X-ray crystallography.The crystal size of 4 is a=1.29145(3) nm,b=1.37687(5) nm,c= 1.86914(4) nm,α=92.114(2)°,β=106.271(2)°,γ=96.333(3)° and the size of 5 is a=1.15333(18) nm,b=1.20072(19) nm,c=1.9081(3) nm,α=88.466(3)°,β=87.918(3)°,γ=79.521(3)°.In addition,refluxing 1 with PPh3 in CHCl3 for 6 h to produce red solid [Ru(CHC(PPh3)CH(2-Py))Cl2(PPh3)2 ]BF4(6).The reaction of complex 6 with HBF4 at room temperature for 3 h afforded the(μ-Cl)3-bridged bisruthenium-vinylcarbene complex [{Ru(CHC(PPh3)CH(2-Py))PPh3 }2(μ-Cl)3 ](BF4)3(7) in 87% yield.The crystal of 6 was grown from CH3 COCH3 solution layered with diethyl ether,and the crystal of 7 was grown from CHCl3 solution layered with diethyl ether.The structures of 6 and 7 were also determined by X-ray crystallography.The crystal size of 6 and 7 are a=1.13777(3) nm,b=1.56466(7) nm,c=1.79541(7) nm,α=75.822(3)°,β=79.502(2)°,γ= 79.259(3)°,a=1.68830(3) nm,b=2.33421(4) nm,c=2.48603(4) nm,α=90°,β=96.5530(10)°,γ=90°,respectively.The CCDC number for 3,5,6,and 7 are 945539(3),945538(5),945541(6),and 945542(7).All these complexes were fully characterized by elemental analysis and NMR spectroscopy.国家重点基础研究发展计划(No.2012CB821600); 国家自然科学基金(Nos.20925208;21174115;21272193); 长江学者和创新团队发展计划资助~

Appl ica tion of Ultraf iltra tion to Pur if ica tion of Cepha lospor in C

教育部重点科技项目；教育部骨干教师基金；福建省重点科技项目资助

基于P2P技术的CSRe冷却装置控制系统设计；Design of Control System for CSRe Cooling Equipment Based on P2P Technology

HIRFL-CSR工程对CSRe冷却装置电子冷却部分的控制系统在实时性和可靠性方面提出了非常高的要求。电子冷却工作环境复杂,各种干扰难以预测。从电子冷却的控制系统改进出发,以实现电子冷却的自动调束为目标,以高端FPGA和ARM嵌入式系统为基础,采用P2P通讯技术和神经元网络算法来实现对电子冷却的自动控制。该控制系统对电子冷却控制的完善提供了先进的硬件平台和软件实现方案

Simultaneous Growth and Bioaccumulation of Mercuric Ion by Genetically Engineered E.coli and Its Continuous Treatment

［中文文摘］研究了在低营养含汞环境中,高选择性汞富集基因工程菌E.coliJM109(表达MerT、MerP汞特异结合转运蛋白和金属硫蛋白MT,该菌简称为M1)的生长富集耦合行为.考察了汞离子浓度、离子强度、络合物、共存金属离子等环境因素对其生长富集Hg2+耦合行为的影响;并且利用连续操作搅拌槽式生物反应器,实现了对有机废水配伍的含汞废水的连续化处理.［英文文摘］Genetically engineered E.coli JM109,namely M1,which expressed both Hg~2+ transport system and metallothionein,was tested for its capability of simultaneous growth and bioaccumulation of Hg~2+ (SG&B) under low nutritional circumstances.The influential factors of ambient conditions,e.g.initial concentrations of mercuric ion,ionic strength, the presence of metal chelators and other coexisting metal ions were investigated.Hg~2+ bioaccumulation behavior of M1 was proved to be well coupled with its growth of M1.Furthermore ,continuoust reatment of Hg2 + contaminated organic wastewater was realized via continuous stirred2tank bioreactor.教育部优秀青年教师资助计划项目; 福建省自然科学基金(D0310004)

Application of Ultrafiltration for Purification of Cephalosporin C

［中文文摘］目的：研究既能提高滤液质量和过滤收率 ,又能简化操作工艺流程的提纯头孢菌素 C发酵液的方法 ,并对超滤过程中顶洗加水量进行探讨。　方法：采用 Ultra- flo超滤系统提纯未经任何预处理的头孢菌素 C发酵液。　结果：滤液中蛋白质含量仅为原工艺的 1/ 10 ,过滤收率由原工艺的 78%提高到 83.8%。系统平均膜通量可达 6 6 .3 L MH,且可长时间连续平稳运行 ,被污染的膜经清洗后与新膜没有明显的差异。理论加水量倍数为投料液的 1.8倍 ,实际的平均加水量倍数为 1.70倍。　结论：U ltra- flo超滤系统完全能代替原工艺提纯不经预处理的头孢菌素 C发酵液 ,理论加水量计算方法可以用于实际洗涤操作。［英文文摘］　Objective 　To investigate a method to purify the fermentation liquor of cephalosporin C in order to increase the quality of filter liquor and filtering yield, and to simplify the p rocesses Methods.The Ultra2f lo m em b rane system w as u sed to pu rify cephalo spo rin C ferm en tat ion liquo r w ithou t any p ret reatm en t. 　Re sults 　The p ro tein con ten t in the f ilt ratew as on ly 1ö10 that of the o riginal p rocess; the average f iltering yield w as 83. 8% , w ith a 4%～ 5% increasing; the average f lux w as as h igh as 66. 3 LMH. 　The m em b rane system cou ld run steadily fo r a long t im e. 　There w as no sign if ican t difference betw een new and con tam inated m em b rane af ter clearing. 　The calcu lated quan t ity of w ater u sed in f iltering is 118 t im es as m uch as that of the o riginal feed Conclusion.The Ultra2f lomembrane system can be u sed to rep lace the o riginal p rocess in the pu rif icat ion of cephalo sporin C fermentation liquor, the calculated quantity of water can be applied to wash the filter residue.福建省自然科学基金资助项目(C9910003

Application of Membrane-Separation Technology

［中文文摘］报道膜分离技术用于垃圾渗沥水、6 -氨基青霉烷酸 (6 - APA)裂解液以及维生素 C发酵液中的分离浓缩过程 ,各项实验均进行了中试放大 ,取得了良好的效果．［英文文摘］This report introduce the applications of membrane separation in landfill leachate treatment and the separation concentration of 6 aminopenicillanic acid and 2 keto L gulonic acid. All experiments were carried out in pilot plant scale and the performances of membranes in the three kinds of feed solutions mentioned above were satisfactory.国家“九五”攻关 (96 - C0 2 - 0 2 - 0 1);教育部重点科技;教育部骨干教师基金;教育部回国人员基金;福建省自然科学基金(C9910003) 资助项目

Three-arm annular inspection tour robot mechanism

本实用新型涉及移动机器人机构，具体地说是一种三臂环形巡检机器人机构，包括前、下、后轮爪机构，前、下、后摇臂机构和中心轮，前、下、后摇臂机构的一端通过转动机构与中心轮连接，另一端分别与前、下、后摆臂的一端通过前、下、后俯仰机构转动连接，前、下、后摆臂的另一端通过回转机构与前、下、后轮爪机构转动连接，前、下、后轮爪机构的另一端设有在输电线上行走的行走机构及夹紧输电线的夹紧机构；前、下、后俯仰机构结构相同，包括转动副及驱动电机；前、下、后回转机构结构相同，包括转动副及驱动电机。本实用新型具有能够跨越引流线等复杂的障碍物能力，可适应地线、导线等多种线路环境，具有结构简单，越障能力强，应用范围广等优点

2004–2016年中国生态系统研究网络水体酸碱度和总溶解性固体数据集

水体的酸碱度(pH)和总溶解性固体(TDS)是中国生态系统研究网络(CERN)的重要监测指标,可为生态系统水体质量长期变化研究提供重要数据。降水pH可以表征其是否为酸沉降,地表水和地下水的pH则关系到水质是否对植物生长和动物饮用存在危害等。TDS是表征水体溶解性固体总含量的指标,同样影响到植物根系的水分吸收和动物的生存分布。本数据集收集整理了CERN农田、森林、荒漠、草原、沼泽5种典型生态系统34个生态站2004–2016年降水、地表水、地下水pH和TDS数据。本数据集可为分析降水、地表水、地下水的酸碱度和TDS的时间变化和空间格局提供数据,可为研究中国典型生态系统水质酸碱度和盐碱化的长期变化提供数据支撑