Synthesis, Crystal Structure and Thermal Stability of Complex Na_3[Na_5(dhns)_2]·(phen)_4·2H_2O with Bihydroxynaphthalenedisulfonate

2,7-二羟基萘-3,6-二磺酸二钠盐(nA2H2dHnS)与邻菲罗啉在乙醇/水溶液中自组装得到一新的配合物nA3[nA5(dHnS)2]·(PHEn)4·2H2O(1),并用CHn元素分析、Ir、TgA和X-射线单晶衍射分析进行了表征。晶体属正交晶系,PnA21空间群,A=2.829 85(12)nM,b=1.038 99(14)nM,C=2.259 23(13)nM,V=6.642 6(10)nM3,z=4,dC=1.573 g.CM-3,r1=0.050 6,Wr2=0.124 0,S=1.05。A new complex,Na3[Na5(dhns)2]·(phen)4·2H2O,was obtained from the self-assembly of disodium 2,7dihydroxy-naphthalene-3,6-disulfonate(Na2H2dhns) and 1,10-phenanthroline(Phen) in a water-ethanol solution.The compound was characterized by elemental analysis,IR,TGA,and X-ray diffraction single crystal structure analyses.The compound crystallizes in the orthorhombic system,space group Pna21,a=2.829 85(12) nm,b=1.038 99(14) nm,c=2.259 23(13) nm,V=6.642 6(10) nm3,Z=4,Dc=1.573 g·cm-3,R1=0.050 6,wR2=0.124 0,S=1.05.CCDC: 881794.福建省教育厅科技基金(No.JA08212); 福建省科技厅科技项目(No.2008F5053)资助项

Synthesis and Crystal Structure of Porous Zinc(Ⅱ) Coordination Polymer{[Zn(L)_2(H_2O)_2]·H_2O}_n Constructed by Isonicotinoylhydrazone Ligand

以邻甲酰基苯磺酸钠和异烟肼为原料在乙醇/水溶液中制备了一种酰腙类SCHIff碱配体(nAl),采用常规溶液挥发法合成了由该配体构筑的zn((Ⅱ)配位聚合物{[zn(l)2(H2O)2]·4H2O}n。利用元素分析、Ir、TgA和X-射线单晶衍射分析对配合物进行了表征。配合物晶体属三斜晶系,P1空间群,晶胞参数A=0.786 98(4)nM,b=0.869 26(5)nM,C=1.180 44(7)nM,α=103.353(5)°,β=100.965(4)°,γ=93.123(4)°,z=1,V=0.767 24(7)nM3,dC=1.697 g·CM-3。每个zn(Ⅱ)离子被2个配体l-阴离子双重桥联形成二核环状结构单元,并通过共用锌离子形成一维链配位聚合物,链与链之间通过氢键扩展为具有一维开放孔道的三维超分子网络结构。An acylhydrazone-type Schiff base ligand(NaL) was synthesized by reaction of sodium 2-formylbenzene sulfonate with isoniazide in a mixture of ethanol and water.A Zn(Ⅱ) coordination polymer {[Zn(L)2(H2O)2]·4H2O}n have been synthesized by employing the solution preparation method at room temperature and characterized by elemental analysis,IR,TGA and X-ray diffraction structural analysis.Crystal data:triclinic system,space group P1,a=0.786 98(4) nm,b=0.869 26(5) nm,c=1.180 44(7) nm,α=103.353(5)°,β=100.965(4)°,γ=93.123(4)°,Z=1,V =0.767 24(7) nm3,Dc=1.697 g·cm-3.Each Zn (Ⅱ) ion is bridged by two L-ligands in the monodentatemonodentate mode to form a ring-like dimer units,and a one-dimensional chain is built by sharing a Zn (Ⅱ) ion between the units.The adjacent chains are linked into a 3D supramolecular network structure via hydrogen bonds and π-π interactions with a 1D open channel that are occupied by solvent molecules.CCDC:934292.泉州师范学院学科建设资金; 国家级大学生创新创业训练计划项目(No.201310399018)资

Study of Graphene Tunable Infrared Spectroscope Photoelectric Conversion Integrated Devices

提出了一种基于石墨烯材料的、串联结构的、纳米尺度的单色器与光电转换一体的集成器件。对石墨烯外加偏置电压使其费密能级偏离电荷中性点,偏离的大小决定石墨烯载流子带间跃迁的光子能量阈值。测量光生载流子的变化,可以实现石墨烯光谱吸收特性测量;设计两级串联且外加不同偏置电压的石墨烯与光波导集成的结构,实现窄带光波信号的光电转换和测量;改变偏压可改变通带频率和带宽,实现光谱扫描电信号输出,即得到了石墨烯可调谐光谱分光器件,可取代光谱仪中的单色器和光电转换器,使红外光谱仪实现小型化。The device with graphene material,series structure and nano scale to be integrated of monochromator and photoelectric converter was presented.The graphene was applied the bias voltage to make its Fermi level to deviate the charge neutratity point(CNP).The deviation magnitude is related to the threshold energy of the interband transition of graphene carriers.The measurement of graphene spectral absorption characteristics was realized by measuring the changes of thephotogenic charge carriers.The devices of graphene integrated with optical wave guide were designed with two stage series and different bias voltages,then the photoelectric conversion and measurement of the narrow band light wave signal were achieved.The passband frequency and bandwidth were changed by shifting the bias voltages,the spectral scanning electrical signal output was realized,and a tunable grapheme spectroscope was achieved.It can replace the monochromator and photoelectric converter in spectrometers and miniaturize the infrared spectrometer.国家自然科学基金资助项目(61172046); 福建省自然科学基金资助项目(2011J01363

新疆阿勒泰地区矿产勘查和开发利用战备规划论证研究

内容包括地区区情、矿产勘查开发现状、资源保证程度与预测、矿产经济评价、结构优化、发展模式、矿业区化、战略构想、规划建议与对策；勘查开发与经济发展相结合，总体思想正确，矿业经济划分合理，成矿区及预测区指明了找矿方向，实施优势资源转换战略的对策可操作性强，２０１０年前，争取新发现矿产地１００处，可供详查大、中型基地２０处，有色金属新增储量增长５０￣６２％，矿产品采、选、冶总产值约３２亿元；初步应用效果好，有关部门参考引用了该成果的总体思路、发展方针、矿业布局、战略部署、规划建议；矿产勘查和矿业开发的经济效益显著，到本世纪末预计达１５．５９亿元，相当于１９９２年矿产品产值的两番半。有效利用资源与节约原材料，为保护自然资源与生态环境，提供科学依据，社会效益明显

上海天文台第三代卫星激光测距系统

本文介绍了中国科学院上海天文台的第三代卫星激光测距系统的性能及三年来对LAGEOS,AJISAI和STARLETTE等卫星的实测结果.卫星轨道拟合和地面靶的测距试验均表明,本系统的卫星测距精度(均方差)约±5cm

阿克苏河灌区棉花耐盐指标的确定/Indexes of Salt Tolerance of Cotton in Akesu River Irrigation District[J]

[目的]通过建立阿克苏河灌区棉花产量与其相应的土壤含盐量的响应关系,即棉花盐分生产函数模型:分段式线性函数模型和非线性-S型函数模型,确定该地区棉花的耐盐指标.[方法]根据3年4地大田定位观测的棉花产量和土壤盐分数据,通过线性回归分析法和非线性最小二乘法分别得出O-20 cm和O-40 cm土层的2种模型,对比分析函数模型的适用性,依据适用性更强的土层模型计算棉花的耐盐指标.[结果]分别拟合出O-20 cm和O-40cm土层的分段线性函数模型和非线性-s型函数模型,其中非线性-S型盐分生产函数模型拟合精度较高.[结论]阿克苏河灌区(0-20 cm土层)棉花的耐盐临界值、时盐极限值、减产速率最大时的土壤盐分含量、减产50%时的土壤盐分含量分别为O.302%、1.119%、O.558%、O.581%