太湖黑藻的化学成分研究

黑藻Hydrilla verticillata (L.f.)Royle是应用于太湖的生态修复的一种沉水植物，每年秋天必须将种植的沉水植物收获才能彻底降低湖水中的营养盐负荷。本文中首次从环境修复植物黑藻全草的提取物中分离得到5个化合物。1-(5´-羟基- 4´- 羟甲基-1´-甲基-1H-吡咯-2´-基)-二十一烷- 2,12,15-烯-1-酮(2) 和胸腺嘧啶脱氧核苷(3) 经EIMS, ¹HNMR, ¹³C NMR 和IR确定其化学结构，用X 射线衍射仪测定了地芰普内酯(1)和γ-硫 (4) 的晶体结构，并进一步用¹H NMR 和红外光谱确定了地芸普内酯的化学结构。同时还根据质谱、红外光谱和文献数据鉴定了十八二酸(5) 。其中，化合物 2 为一种新化合物，化合物1 和3 是生物活性物质。为将收获后的生态修复植物黑藻开发成医药材料等高附加值产品提供了基础研究资料。     

异核配合物K_2[Co(Dipc)_2]·7H_2O的合成、性质、结构和热分解动力学研究(英文)

0IntroductionItiswellknownthatcobalt?candisplayvariouscoordinationpolyhedron,theusualcoordinationnum-bervaryingfromfourtosix,whilemanyreportsonthecrystalandmolecularstructureareofsimplecobalt?complex,relativelyfewcasesconcernheteronuclearcomplexes.Recently,somestructuresofheteronuclearcompoundscontainingpyridine-2,6-dicarboxylicacidhavebeendetermined犤1～4犦,becauseoftheirimportantroleincoordinationchemistry,catalyticreactions,magneticmaterialandbiologicalsystem.Wereporthereanovelstructureofco…     

地理土壤因素对油松林生长影响的综合评价

油松是我国特有的生产和环境保护树种。本文研究油松林生产力的地域分布规律并分析影响其产量的因素。陕西省是我国油松生长的12个分布省区的中心,具有进行这方面研究的优越自然条件,主要地理和土壤因素在水平和垂直带上的变化明显。我们在该省选择了7个研究区,设置了55个标准地研究了油松林生产力与环境因素的关系。在7个典型研究区     

A New Dinuclear Zinc Polymer Based on 3-Methoxy-2-hydroxybenzaldehyde: Synthesis,Structure, Spectral Characterization and Hirshfeld Surface Analysis

A highly efficient fluorescence material dinuclear zinc polymer[Zn_2(mhbd)_2(dca)_2]_n(1,Hmhbd is 3-methoxy-2-hydroxybenzaldehyde,dca is N(CN)_2~?)has been synthesized under room temperature and structurally characterized by elemental analysis,IR,and single-crystal X-ray diffraction.The structure belongs to the triclinic system,space group P1with a=8.475(1),b=9.595(1),c=15.001(1)?,α=86.84(1),β=81.10(1),γ=68.78(1)°,M_r=565.15,V=1123.5(1)?~3,D_c=1.671 g·cm~(–3),F(000)=568,μ=2.185 mm~(–1),R=0.0451,and w R=0.1297.1 is a dinuclear zinc complex which further constructs a 1D chain through doubleμ_(1,5)-dca bridge.Luminescent property and Hirshfeld surface analysis of 1 have been studied.The result indicates that the fluorescence intensity of complex 1 is forty-one times the fluorescence intensity of Hmhbd ligand.     

双核Cu(II)-牛磺酸缩水杨醛席夫碱配合物的合成、晶体结构及生物活性

合成了双核铜配合物 [Cu(TSSB) (H2 O) ] 2 ·2H2 O (TSSB =牛磺酸缩水杨醛席夫碱 ) ,通过元素分析、红外光谱对配合物进行了表征 ,并利用X射线法测定其结构 .晶体属三斜晶系 ,空间群P1- ,其晶胞参数为 :a =0 .69613 ( 19)nm ,b =0 .93 0 7( 3 )nm ,c=1.0 43 9( 3 )nm ;α =10 8.796( 5 )° ,β =10 1.2 71( 5 )° ,γ =10 5 .617( 5 )° ,V =0 .5 869( 3 )nm3 ,Z =1,Dcald=1.849g/cm3 ,μ =2 .0 5 8mm-1,F( 0 0 0 ) =3 3 4,Gof =1.0 79,Δρ =3 79～ -4 0 6e·nm-3 .两个铜原子配位数各为五 ,处于变形四方锥的配位环境中 .并对配合物进行了的生物活性试验 ,结果表明 ,配合物抗菌活性与青霉素接近 ,肿瘤抑制率达 63 .5 % .半数致死量为 10 0 0mg/kg .有可能成为一种新的抗菌、抗肿瘤药物     

钾的配合物C9H10KNO4S的合成、晶体结构及生物活性

The title complex was synthesized by the reaction of taurine 、salicylic and potassium hydrate in water-ethanol solution. The crystal structure was determined by X-ray diffraction method and the chemical formula weight of the complex is 267.34. and the crystal belongs to monoclinic system with space group P2₁/c and cell parameters： a=2.0292(8)nm， b=0.7283(4)nm， c=0.7540(4)nm; β=94.15(1)°， V=1.1115(9)nm3， Z=4， D_c=1.598 g·cm^-3， μ=0.0663mm^-1， F(000)=552. The complex is a lamellar compound of infinite expansion. In addi-tion， the complex has been tested for its antibacterial active. The average diameter of complex antibacterial activing cycle： colibacillus is 9mm， pseudomonas aeruginosa is 8mm. CCDC： 194630.     

铜配合物[Cu(Phen)3]·2ClO4·C2H5OH·0.86H2O的合成与晶体结构

配合物[Cu(Phen)3].2C lO4.C2H5OH.0.86H2O(phen=邻啡萝啉)的结构由X-射线测定,配合物属三斜晶系,Pī空间群,晶胞参数:a=1.1359(3)nm,b=1.2955(2)nm,c=1.4495(2)nm,a=82.94(1),°β=76.14(1),°γ=67.52(1),°V=1.9124(6)nm3,Z=2.三个邻啡萝啉与铜配位形成六配位的配位阳离子,由于John-Teller效应形成变形八面体,Cu-N键键长在0.2090(3)nm至0.2208(4)nm之间。配合物由配位阳离子,两个高氯酸根,一个乙醇分子和0.86个水分子组成。配合物由Cu(phen)32 和C l04-之间的静电引力以及它们与乙醇、水之间的范德华力堆积而成。     

异核配合物K2[Co(Dipc)2]·7H2O的合成、性质、结构和热分解动力学研究

A heteronuclear compound, K₂[Co(Dipc)₂]·7H₂O (Dipc=pyridine-2,6-dicarboxylic acid) has been synthe- sized and characterized by IR, elemental analysis, and X-ray diffraction. Crystal data: orthorhombic system with space group Pnna and unite cell parameters: a=2.0645(3)nm, b=1.3484(2)nm, c=0.8204(1)nm; V=2.2838(6)nm³, Z=4, D_cald=1.726 g·cm^-3, μ=1.193 mm^-1, F(000)=1212, Gof=1.045, Δρ=339～-348 e·nm^-3, the final R is 0.0295. In the molecule of the complex, Co(Ⅱ) ion is six-coordinate to form a dis-torted octahedron. The N atom and the carboxyl group of pyridine-2,6-dicarboxylic acid are coordinated with the central ions. One of the carboxyl groups of the pyridine-2,6-dicarboxylic acid connect K(Ⅰ) and Co(Ⅱ). The com- pound possesses approximate C₂ symmetry. The compounds form a three-dimensional network of infinite length connection with crystal waters, potassium ions and hydrogen bonds. The result of kinetics of thermal decomposition indicated that the compound decomposition takes place in two steps. CCDC: 207078.     

[Ni(C_5H_5N)_2(C_7·H_6O_2N)_2]H_2O三元配合物的合成及晶体结构

合成了标题化合物。该化合物的分子式[Ni(C5H5N)2(C7H6O2N)2]H2O(C24H24N4NiO3),分子量475.18,采用单色的MoKα (λ = 0.71073 )射线测定,共收集7408个数据,其中独立衍射点2567个(Rint = 0.0272),I > 2s(I)可观测点数1926个,结果表明该化合物属单斜晶系, 空间群C2/c其晶胞参数为: a = 14.466(2),b = 12.193(2),c = 14.072(2) ;β = 116.229(2)°,V = 2226.6(5) 3,Z = 4,Dc = 1.418 g/cm3 ,μ = 0.905 mm-1,F(000) = 992. 2个水杨醛亚胺各提供2个配位原子参与配位,2个吡啶各提供1个配位原子参与配位,该配合物是六配位的八面体构型,同时讨论了该体系中不同配位原子的配位能力的差异。