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1.
X-射线晶体结构分析表明,在90℃的水热条件下,N-(8-喹啉基)吡啶-3-酰胺在Cd2+的存在下发生醇解.醇解产物为8-氨基喹啉(HL1)和吡啶-3-羧乙酯(HL2),它们与Cd (Ⅱ)配位形成四方锥型化合物.该配合物为单斜晶系,空间群P21/c.a=18.1089(1)A,b=8.9986(1)A,c=19.3070(2)A,β=113.085(1)和Z=4. 相似文献
2.
由取代苯乙酮出发,经过多步反应,制得2-苯甲酰基-N-苯基-2-(1,2,4-三唑-1-基)硫代乙酰胺 (1)
和2-(4-氯苯甲酰基)-N-苯基-2-(1,2,4-三唑-1-基)硫代乙酰胺 (2),
通过元素分析、核磁共振氢谱、红外光谱和质谱进行表征。并利用单晶X射线衍射法测定化合物1。晶体属单斜晶系, P21/c空间群, a =
0.8806(2) nm, b = 1.2097(2) nm, c = 1.4809(3) nm, β=105.88˚,
Z=4, V=1.5173(6) nm3, Dc=1.411 Mg/m3,
μ=0.22 mm-1, F(000)=672, R1=0.040. 采用离体平皿法对它们的杀菌活性进行了比较,同时测定了它们的植物生长调节活性。测定结果表明化合物2对黄瓜子叶生根具有较强的促进作用,促进率达131%。 相似文献
3.
水热法合成了新结构类型化合物CsIn[PO3(OH)]2,并通过单晶X-射线衍射表征结构。标题化合物空间群为P1 21/c 1 (No.14),晶体学参数为:Mr=439.69,mP56,a=0.532 86(6) nm,b=0.916 53(7) nm,c=1.478 39(14) nm,β=93.849(9)°,V=0.720 4(1) nm3,Z=4,Dx=4.054 g·cm-3,μ=8.713mm-1,F(000)=800,R1= 0.032 5,wR2=0.087 4。在该化合物中,2个InO6八面体和4个PO4四面体形成交连的六元环柱,并沿a轴方向形成近六方密堆积并连接成Cs+离子占据的十二元环结构隧道,六元环和十二元环连接构筑了三维网络结构。与类似化学计量比化合物Na2In2[PO3(OH)]4·H2O比较,标题化合物中十二元环的形成明显取决于隧道阳离子的大小,其拓扑构造可看作扩展的6,3-网格连接,化合物 RbIn[PO3(OH)]2与之同构。 相似文献
4.
N-(6-氯吡啶-3-基)羰基-2-取代芳基磺酰胺的合成、结构及除草活性研究 总被引:4,自引:0,他引:4
通过6-氯吡啶-3-甲酸与2-取代芳基磺酰胺的缩合反应合成了5个N-(6-氯吡啶-3-基)羰基-2-取代芳基磺酰胺化合物3a~3e, 产物结构经元素分析, 1H NMR, IR确证. 由X射线衍射法测定了化合物3a的晶体结构, 该晶体属于三斜晶系, 空间群为 . 以测试除草活性常用的植物玉米、黄瓜和油菜为试材测定了目标化合物的除草活性, 初步试验表明3a~3d有较好的活性, 而且它们对双子叶植物的抑制作用优于对单子叶植物. 相似文献
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6.
0IntroductionCobaltcomplexeswithnonmacrocyclicchelatingligandscontainingtheamidefunctionalityhavere鄄ceivedmuchattentioninpastyears[1~3].Somestudieshaverevealedthatdeprotonatednitrogensoforganicamides,beinganionicinnature,arecapableofstabi鄄lizingthetriva… 相似文献
7.
A zinc(Ⅱ) complex [(5-(4-nitrophenyl)tetrazolato)2Zn]n was obtained by the hydrothermal treatment of ZnBr2 and NaN3 with 4-nitrobenzonitril in water at 120 ℃ in Pyrex tube. The crystal belongs to orthorhombic system with space group Pbcn, and a=1.040 7(5) nm, b=1.382 1(7) nm, c=2.435 1(13) nm, V=3.503(3) nm3, Z=8. This complex is a good blue fluorescent material in solid state at room temperature. CCDC: 684226. 相似文献
8.
利用3,5-二氨基苯甲酸配体合成了2种新的配合物[Cd(diaba)(phen)2]NO3·H2O(1)和[Zn(diaba)(2,2′-bipy)2](2)(H2diaba=3,5-diaminobenzoic acid;phen=1,10-phenanthroline,2,2′-bipy=2,2′-bipyridine),并对其进行了元素分析、红外光谱和X射线单晶衍射测定。配合物1属于正交晶系,空间群为Fddd,a=1.425 81(7)nm,b=2.564 62(13)nm,c=3.092 47(17)nm。配合物2属于单斜晶系,空间群为C2/c,a=1.273 62 nm,b=1.592 78 nm,c=1.519 35 nm,β=107.334°。配合物1和2都为单核晶体。配合物1的结构单元由1个CdII、1个3,5-二氨基苯甲酸和2个phen构成。配合物2的结构单元由1个ZnII、1个3,5-二氨基苯甲酸和2个2,2′-bipy构成。两种配合物再通过氢键或π-π堆积形成三维超分子网络。研究了配合物的热稳定性和荧光性质。 相似文献
9.
Treatment of deprotonated N,N′-bis(4-methyl-2-benzothiazolyl)-2, 6-pyridicarboxamide (L2-) with CoCl2·6H2O yields the mononuclear complex, (Et4N)2[CoL2]·0.5H2O. Single crystal X-ray structural determination has been carried out for the complex, crystal system: Monoclinic, space group: P21/c, a=1.444(1) nm, b=1.969(1) nm, c=2.448(1) nm, β=118.02(1)°, V=6.143 0(15) nm3, Z=4. In this complex, the central Co(Ⅱ) atom is in an octahedron environment, with four deprotonated amide-N atoms in the equatorial plane and two pyridine-N atoms in the axial positions. CCDC: 252558. 相似文献
10.
用两种方法合成了7个新型的手性多元β-酰胺醇。方法1是多元羧酸与SOCl2反应形成相应的多元酰氯,然后与手性α-氨基醇反应合成了目标物,产率为3·7%~78·8%。方法2是在N2保护120~145℃下,多元羧酸与手性α-氨基醇反应3~12h,一步反应合成了目标物,产率为71·2%~95·7%。 相似文献
11.
Zhao Xiao‐Li Xu Ji‐Qing Zhang Li‐Juan Yu Jie‐Hui Zeng Qing‐Xin Cui Xiao‐Bing Wang Tie‐Gang Wang Tian‐Wei 《中国化学》2003,21(3):296-300
The reaction of CuBr2 with 1,10‐phen‐H2O (1,10‐phen = 1,10‐phenanthroline) gave two compounds: CuBr2(C12H8N2) and Cu3Br3(C12H8N2)2. Their structures have been characterized by single‐crystal X‐ray diffraction analysis, elemental analyses, thermogravimetric analyses (TGA) and measurement of variable temperature magnetic susceptibility. Crystal data for CuBr2(C12‐H8N2): monoclinic, space group P21/n, a = 0.9977(3) nm, b = 0.65138(14) nm, c = 1.8207(4) nm, β = 91.624(18)°, V = 1.1828(5) nm3, Z = 2. Crystal data for Cu3Br3(C12H8N2)2: monoclinic, space group C2/c, a = 1.00167(11) nm, b = 1.4523(4) nm, c = 1.6295(3) nm, β = 94.386(14)°, V = 2.3635(8) nm3, Z = 3. 相似文献
12.
1 INTRODUCTION Transition metal oxide clusters and their deriva- tives offer an unmatched variety of structural motifs and wide ranging applications in several areas, such as analytical chemistry, materials science and cataly- sis, nanotechnology, chemical sensing, environmental decontamination, biochemical and geochemical pro- cesses, and medicine[1~3]. Polyoxovanadates or vana- dium oxide clusters constitute an important subclass of polyoxometalates and have been studied exten- sively.… 相似文献
13.
基于3,4-吡啶二羧酸的二维层状聚合物的合成和晶体结构 总被引:2,自引:0,他引:2
A metal-organic coordination polymer {[La(PDC)(N-HPDC)]·H2O}n (1) (H2PDC=pyridine-3,4-dicarboxylic acid) has been hydrothermally synthesized and structurally characterized by X-ray diffraction single-crystal structure determination, elemental analyses and IR spectroscopy. The complex crystallizes in the monoclinic system, space group P21/c with a=1.452 8(2) nm, b=0.681 59(11) nm, c=1.464 0(2) nm, β=94.270(2)°, V=1.445 6(4) nm3, Dc=2.243 Mg·m-3, Z=4, Mr=488.14, F(000)=944, μ(Mo Kα)=3.015 mm-1, R=0.031 0 and wR=0.076 2 for 2 424 observed reflections (I>2σ(I)). There are La-O-C-O-C-La double chains in the complex. The chelating carboxylate O atoms and pyridyl N atoms lead the compound to 2D layers structure, which is extended to 3D supramolecular architecture through intermolecular hydrogen bonds. It is interesting that the polymer containing one-dimensional channels. CCDC: 708868. 相似文献
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开放骨架结构金属磷酸盐不仅具有丰富的结构和组成多样性,而且在吸附、分离、和催化等方面具有潜在的应用前景[1 ̄3]。同磷酸铝一样[2,3],磷酸镓是开放骨架磷酸盐中一个重要的家族,其结构主要由交替的GaOn多面体(GaO4,GaO5及GaO6)和PO4四面体构成。目前,已有近百种磷酸镓在水热/溶剂热体系下成功的合成出来[4 ̄8],其中最著名的例子是具有二十员环超大孔磷酸镓Cloverite[5]。这些磷酸镓不仅具有结构上的新颖性,同时还具有丰富的组成计量比(Ga/P:1/2 ̄3/2)[9],它们的结构由多种次级结构单元(SBU)构成,拓扑相关性为定向设计提供了重要基… 相似文献
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A dimeric chromium compound has been synthesized by hydrothermal method and characterized by IR,EPR spectra and TG-DTA technique.The title compound [Cr(aea)]2(OH)2(aea=N-(2-aminoethyl)aspartate)crystallizes in monoclinic,space group P21/c with a=8.9393(10),b=6.7198(7),c=14.6791(16)(A),β=91.0580(10)°,V=881.63(17)(A)3,Z=2,Mr=486.34,Dc=1.832g/cm3,F(000)=500,μ=1.296 mm-1,R=0.0271 and wR=0.0756.Single-crystal X-ray structural analysis indicates that the title compound consists of two Cr(aca)units linked by two bridging hydroxyl groups.The geometry around each chromium center is approximately octahedral and completed by two hydroxyls and a quadridentate ligand which is formed when ethylenediamine reacts with maleie acid. 相似文献
16.
DANG Dong-Bin JIN Ya-Nan BAI Yan ② PAN Xiao-Jing WANG Jing-Ping ② 《结构化学》2008,27(2):225-229
A dimeric chromium compound has been synthesized by hydrothermal method and characterized by IR, EPR spectra and TG-DTA technique. The title compound [Cr(aea)]2(OH)2 (aea = N-(2-aminoethyl)aspartate) crystallizes in monoclinic, space group P21/c with a = 8.9393(10), b = 6.7198(7), c = 14.6791(16) A, β = 91.0580(10)°, V= 881.63(17) A3, Z= 2, Mr = 486.34, De= 1.832 g/cm3, F(000) = 500,μ = 1.296 mm-1, R = 0.0271 and wR = 0.0756. Single-crystal X-ray structural analysis indicates that the title compound consists of two Cr(aea) units linked by two bridging hydroxyl groups. The geometry around each chromium center is approximately octahedral and completed by two hydroxyls and a quadridentate ligand which is formed when ethylenediamine reacts with maleic acid. 相似文献
17.
晶体结构;水热合成;一种新颖层状磷酸镓化合物[Ga3(PO4)4](H3NCH2CH2)2NH2的合成与结构表征 相似文献
18.
IntroductionThesynthesisandsorptionpropertiesofopenframe worksolidssuchaszeolites1andmetalmolybdenumphos phate2 ,3withlargecavitiesprovokedenormousinterestbe causeoftheirpotentialapplicationincatalysis .One ,two andthree dimensionalsolidcompoundsconsistingo… 相似文献
19.
<正>A three-dimensional coordination polymer {[Cd_2(HCAM)_2(H_2O)_4]·3.5H_2O}_n was synthesized by the hydrothermal reaction of H_3CAM(H_3CAM=4-hydroxypyridine-2,6-dicerboxylic acid)and Cd(NO_3)_2·4H_2O.The structure was characterized by elemental analysis,thermal gravimetric analysis,infrared spectroscopy and single-crystal X-ray diffraction.It crystallizes in triclinic,space group P_1~-with a= 9.4389(19),b=11.009(2),c=11.192(2)(?),α=87.87(3),β= 74.63(3),γ=81.22(3)°,V=1108.2(4)(?)~3,Z=2,D_c=2.164g/cm~3,μ=2.011 mm~(-1),F(000)=710,R =0.0419 and wR=0.1170.X-ray analysis reveals that the title compound adopts a one-dimensional staircase structure by carboxyl of H_3CAM and water molecules,and it is further linked by hydrogen bonds to form a 3-D metal-organic open framework.The thermal gravimetric analysis displays that the framework exists stably below 300℃. 相似文献