1,3-双(2-(2,2-二氰乙烯基)苯氧基)-2-丙醇及其银(Ⅰ)配合物的合成、晶体结构及其荧光性质（英文）

用1,3-双(2-甲酰基苯氧基)-2-丙醇和丙二腈进行反应得到1,3-双(2-(2,2-二氰乙烯基)苯氧基)-2-丙醇配体L,然后将配体与Ag Sb F6进行配位反应,得到配合物[Ag LSb F6]n·n CHCl3(1),并用元素分析,FTIR和X-射线单晶衍射进行了表征。结果表明,配体L属于单斜晶系,空间群P21/n,晶体学参数:a=0.990 2(11)nm,b=2.181(2)nm,c=1.012 2(11)nm,β=109.374(10)°,V=2.062(4)nm3,Z=4,Dc=1.277 g·cm-3,Mr=396.40,μ=0.087 mm-1,F(000)=824,R1=0.064 2,w R2=0.117 4(I2σ(I))。配合物1属于单斜晶系,空间群P21/n,晶体学参数:a=1.270 57(11)nm,b=1.456 44(13)nm,c=1.669 85(14)nm,β=105.643(3)°,V=2.975 6(4)nm 3,Z=4,Dc=1.918 g·cm-3,Mr=859.39,μ=1.907 mm-1,F(000)=1 664,R1=0.0417,w R2=0.1 032(I2σ(I))。在配合物1中,配体L表现为四齿配体分别与4个银(Ⅰ)离子配位,同时,每一个银(Ⅰ)离子与4个相邻配体配位形成2D层状结构。同时,研究了配体和配合物的固体荧光性质。     

2-(4-甲基苯甲酰基)苯甲酸构筑的锰(Ⅱ)配合物的晶体结构、电化学、荧光及磁性研究(英文)

以2-(4-甲基苯甲酰基)苯甲酸(HL)为配体合成了一个新的锰(髤配合物Mn(L)2(2,2′-bipy)2。该配合物晶体属单斜晶系,空间群P21/c,晶胞参数:a=1.719 8(2)nm,b=1.039 80(14)nm,c=2.346 3(3)nm,β=95.732(3)°,V=4.174 8(9)nm3,Dc=1.346 g·cm-3,Z=4,μ(Mo Kα)=0.373 mm-1,F(000)=1 756,最终偏离因子R1=0.042 3,wR2=0.094 9。标题配合物的中心锰髤离子处于变形的八面体配位环境中。测定了配合物的电化学、荧光和磁性。结果表明:在循环伏安过程中,配合物的电子转移是准可逆的,对应的电极反应是Mn髥/Mn髤;配合物在536~556 nm之间有一个较强的荧光发射峰;在300~2 K,配合物有反铁磁性。     

双环[2.2.2]辛-7-烯-2，3，5，6-四羧酸铜配合物的合成和晶体结构研究

以双环[2.2.2]辛-7-烯-2,3,5,6-四羧酸(H4L)为配体,采用水热法合成了个铜配合物[Cu2L2(H2O)2](2),并得到单晶,同时在水热条件下得到了化合物H4L.2H2O(1)的晶体。分别对化合物1和2进行了元素分析、红外光谱等分析,并用X-射线单晶衍射测定了化合物的单晶结构。化合物1属于三斜晶系,P1空间群,化合物1的晶体学数据为:a=0.88554(15)nm,b=0.95566(16)nm,c=1.043 88(17)nm,α=110.863(3)°,β=91.127(3)°,γ=91.429(3)°,V=0.824 9(2)nm3,Z=2,Mr=366.32,Dc=1.475 g.cm-3,F(000)=388,μ=0.129,R1=0.067 0,wR2=0.189 3;配合物2属于正交晶系,Pnnm空间群,配合物2的晶体学数据为:a=2.766 8(6)nm,b=0.638 75(14)nm,c=0.737 32(16)nm,V=1.303 1(5)nm3,Z=4,Mr=442.31,Dc=2.254 g.cm-3,F(000)=884,μ=3.324,R1=0.059 4和wR2=0.191 7。化合物1通过氢键形成三维网状结构,配合物2中的中心离子有3种配位方式,通过不同的配位方式也形成三维结构。     

两个基于双(4-吡啶-4-苯基)胺的钴(Ⅱ)、锌(Ⅱ)配合物的合成和晶体结构

以双(4-吡啶-4-苯基)胺(BPPA)和4,4-(六氟)双(苯甲酸)(H2hfipbb)或对苯二甲酸(p-H2bdc)为配体,采用溶剂热法与M(NO3)2·6H2O(M=Co、Zn)组装合成了2个新的配合物{[Co2(BPPA)(hfipbb)2·(H2O)3]·6H2O}n(1)、{[Zn2(BPPA)2(p-bdc)2]·H2O·DMF}n(2),利用元素分析、X射线粉末衍射(PXRD)、红外光谱等手段分别对它们进行了表征,并用X射线单晶衍射仪测定了配合物的单晶结构。X射线单晶衍射测定结果表明:配合物1和2均为二维结构。配合物1具有新的拓扑结构。配合物2的二维结构又可以组成三维框架结构。配合物1为正交晶系,Pnna空间群,a=2.640 9(2)nm,b=1.715 78(13)nm,c=1.504 11(11)nm,V=6.8154(9)nm3,Z=4,μ=0.571 mm-1,F(000)=2 592,Dc=1.245 g·cm-3,Mr=1 383.76,R1=0.066 6,w R2=0.208 9(I>2σ(I));配合物2为单斜晶系,C2/c空间群,a=2.796 70(9)nm,b=1.814 82(6)nm,c=2.303 13(7)nm,β=102.136 0(10)°,V=11.428 3(6)nm3,Z=8,μ=0.906 mm-1,F(000)=4 944,Dc=1.391 g·cm-3,Mr=1 196.85,R1=0.039 8,w R2=0.106 4(I>2σ(I))。此外,热重分析表明配合物1和2均具有良好的热稳定性。     

一个基于2-(2-羧基苯基)-1H-咪唑并[4,5-f][1,10]邻菲啰啉配体的二维铅(Ⅱ)配合物的水热合成及晶体结构

在水热条件下,利用邻菲啰啉衍生物2-(2-羧基苯基)-1H-咪唑并[4,5-f][1,10]邻菲啰啉(HL)和Pb(NO3)2反应合成了一个配合物[PbL2]n(1),并用红外、元素分析和X射线单晶衍射对其结构进行了表征。配合物1属于单斜晶系,空间群为P21/c,晶胞参数a=1.345 9(9)nm,b=0.709 4(5)nm,c=3.265 5(2)nm,β=99.6260(10)°,V=3.074 0(4)nm3,Z=4,C40H22N8O4Pb,Mr=885.85,Dc=1.914 g·cm-3,μ(MoΚα)=5.551 mm-1,F(000)=1728,GOOF=1.038,R=0.027 0,wR=0.058 1,其中5 067个可观测点(I>2σ(I))。结构分析表明配合物1为二维层状结构。此外,对配合物的热稳定性和发光性质也进行了研究。     

一个基于2-(2-羧基苯基)-1H-咪唑并[4,5-f][1,10]邻菲哕啉配体的二维铅(Ⅱ)配合物的水热合成及晶体结构

在水热条件下,利用邻菲哕啉衍生物2-(2-羧基苯基)-1H-咪唑并[4,5-f][1,10]邻菲啰啉(HL)和Pb(NO3)2反应合成了一个配合物[PbL2]n(1),并用红外、元素分析和X射线单晶衍射对其结构进行了表征.配合物1属于单斜晶系,空间群为P21/c,晶胞参数a=1.345 9(9) nm,b=0.709 4(5) nm,c=3.265 5(2) nm,β=99.6260(10)°,V=3.074 0(4) nm3,Z=4,C40H22N804Pb,Mr=885.85,Dc=1.914 g·cm-3,μ(Mo Kα)=5.551 mm-1,F(000)=1 728,GOOF=1.038,R=0.027 0,wR=0.058 1,其中5 067个可观测点(I＞2σ(I)).结构分析表明配合物1为二维层状结构.此外,对配合物的热稳定性和发光性质也进行了研究.     

两个三(2-甲基-2-苯基丙基)锡含N杂环羧酸酯的合成、结构、热稳定性、量子化学及毒性研究

在甲醇中氧化双[三(2-甲基-2-苯基)丙基锡]分别与吡嗪-2-甲酸、吲唑-3-甲酸反应,合成了2个三(2-甲基-2-苯基丙基)锡含N杂环羧酸酯(PhCMe2CH2)3Sn[O2C(C4N2H3)](1)和(PhCMe2CH2)3Sn[O2C(C7N2H5)](2)。经IR、1H和13C NMR、元素分析和X-射线单晶衍射表征结构。配合物1属单斜晶系,空间群P21/n,晶体学参数:a=1.209 31(7)nm,b=1.818 15(11)nm,c=1.491 39(9)nm,β=93.567(3)°,Z=4,V=3.272 8(3)nm3,Dc=1.302 Mg·m-3,μ(Mo Kα)=0.812 mm-1,F(000)=1 328,R1=0.027 5,wR2=0.067 0。配合物2属三斜晶系,空间群P1。晶体学参数:a=1.153 10(7)nm,b=1.819 73(11)nm,c=2.620 40(16)nm,α=86.866(2)°,β=87.063(2)°,γ=73.332(2)°,Z=6,V=5.255 9(6)nm3,Dc=1.288 Mg·m-3,μ(Mo Kα)=0.762 mm-1,F(000)=2 112,R1=0.037 4,wR2=0.092 5。1和2的中心锡原子均为畸变四面体构型。通过分子间C-H…O和N-H…N氢键作用,配合物2形成环状三聚体结构;两相邻三聚体间,经C-H…π作用进一步扩展成为六聚体。热重分析结果表明,1和2具有良好的热稳定性,分别在210、240℃以下可以稳定存在。毒性测试的初步结果表明,配合物1、2对石螺急性毒性较小,具有较好的环境相容性,且1的毒性低于2和苯丁锡。     

2D氢键网络镉配合物Cd(pyridine-2-sulfonato)2(H2O)2和锌配合物Zn(pyridine-2-sulfonato)2(H2O)2的合成和晶体结构

合成了镉的吡啶-2-磺酸配合物Cd(C5H4NSO3)2(H2O)2 1和锌的吡啶-2-磺酸配合物Zn(C5H4NSO3)2(H2O)2 2。 研究表明, 2个化合物属异质同晶, 均属单斜晶系, 空间群为C2/c. 化合物1晶胞参数为:a = 13.7671(5), b = 7.2778(3), c = 16.1559(9) ? b = 106.656(3)? V = 1550.8(1) 3, Z = 4, Dc = 1.990 g/cm3, m =1.719 mm-1, F(000) = 920, R = 0.0225, wR = 0.0584, 共收集到1759个独立衍射点, 其中I≥2(I)的可观测点为1681个;化合物2晶胞参数为:a = 13.711(1), b = 7.1451(9), c = 15.972(1) , b =107.079(5)? V = 1495.7(3) 3, Z = 4, Dc = 1.855 g/cm3, m = 1.964 mm-1, F(000) = 848, R = 0.0310, wR = 0.0831, 共收集到1707个独立衍射点, 其中I≥2(I)的可观测点为1592个。在2个标题配合物中, Cd2+离子(或Zn2+离子)由2个吡啶-2-磺酸中的2个氮和2个氧以及2个水分子中的2个氧配位形成畸变的N2O4八面体配位构型。每个配合物分子具有晶体学2次旋转轴对称性。配合物分子之间通过许多OH(配位水分子)LO(未配位磺酸根)氢键联结成二维结构网络。     

基于2-丙基-4，5-二甲酸咪唑和4,4-联吡啶的镉(Ⅱ)配位聚合物的合成、晶体结构及荧光性质

通过水热法合成得到了一个包含四核镉(Ⅱ)的基于2-丙基-4,5-二甲酸咪唑和4,4-联吡啶的配位聚合物[Cd2(HPIDC)2(bpy)(H2O)2](1)。X-射线单晶衍射分析结果表明:配合物1属单斜晶系,结晶在c2/c空间群中,晶胞参数为:a=1.936 6(4)nm,b=1.504 1(3)nm,c=2.200 4(5)nm,β=94.990(4)°,V=6.385(2)nm3,Z=8,1.393 mm-1,F(000)=3 216,Dc=1.684 g.cm-3,R1=0.045 8,wR2=0.108 9。通过链间的O-H…O氢键作用,形成了三维的超分子结构。固体荧光测试表明:配合物1在427 nm处发射出较强的荧光。     

基于2-(4-甲基苯甲酰基)苯甲酸及2,2′-联吡啶的双核铜(Ⅱ)配合物的晶体结构、荧光和磁性(英文)

以2-(4-甲基苯甲酰基)苯甲酸(HL)及2,2′-联吡啶(2,2′-bipy)为配体合成了一个双核铜(Ⅱ)配合物[Cu2(L)4(2,2′-bipy)2]·H2O(1),并对其进行了晶体结构测定。测定结果表明,该配合物晶体属于三斜晶系,空间群为P1,晶胞参数:a=1.012 57(15)nm,b=1.312 5(2)nm,c=1.317 0(2)nm,α=82.985(2)°,β=76.437(2)°,γ=88.290(2)°,V=1.688 7(4)nm3,Dc=1.391 g·cm-3,Z=2,F(000)=732,GooF=1.027,最终偏离因子R1=0.037 5,wR2=0.091 4。在配合物分子中相邻的2个铜(Ⅱ)离子通过2个2-(4-甲基苯甲酰基)苯甲酸根桥联配位连接起来,其端位各与1个2-(4-甲基苯甲酰基)苯甲酸根和1个2,2′-联吡啶分子配位,整个分子形成了双核结构。测定了标题配合物的荧光和磁性,结果表明:当激发波长为608 nm时,配合物在472和476 nm处有2个较强的荧光发射峰;在2~100 K,配合物具有顺磁性。     

1-(2-Quinoxalyl)-, 1-[3,5-Di(trifluoromethyl)phenyl]-, 1-(2-Carboxyphenyl)-, and 1-Ethoxycarbonyl-4-oxo-4,5,6,7-tetrahydroindazoles

The corresponding 1-(2-quinoxalyl)-, 1-[3,5-di(trifluoromethyl)phenyl]-, and 1-ethoxycarbonyl-3-methyl-4-oxo-4,5,6,7-tetrahydroindazoles have been obtained from reactions of 2-acetyl-1,3-cyclohexanedione, its 5,5-dimethyl and 5-(2-furyl) derivatives, with 2-hydrazinoquinoxaline, 3,5-di(trifluoromethyl)phenylhydrazine, and ethoxycarbonylhydrazine. On interaction with ethoxycarbonylhydrazine the intermediate 2-[1-(-ethoxycarbonyl)hydrazino]ethylidene-1,3-cyclohexanediones were also isolated. From the potassium salt of 2-formyldimedone and 2-carboxyphenylhydrazine hydrochloride, 2-(2-carboxyphenyl)hydrazinomethylene-5,5-dimethyl-1,3-cyclohexanedione was obtained, the cyclization of which in ethanol in the presence of HCl led to 1-(2-carboxyphenyl)- and 1-(2-ethoxycarbonylphenyl)-6,6-dimethyl-4-oxo-4,5,6,7-tetrahydroindazole.     

Synthesis and Molecular Structure of (E)-1-(Morpholino)-2-(thiomethyl)-2-phenylvinylphosphonate

1 INTRODUCTION Phosphorus-containing vinyl compounds havebeen widely studied due to their versatile physiolo-gical activities and applications in transition metalchemistry, asymmetric catalysis and photorearrange-ment[1～4]. In our previous papers, we have reportedthe syntheses of 2,2,4,5-tetrasubstituted-1,3-dithio-les[5] and 2,5-bis(morpholino)-3,4-bis-(p-chloro-phe-nyl)thiophenes[6] by the reactions of α-thioaroyl-thiofor-mamide with trimethyl phosphite at room tempera-ture and in refl…     

3-(2-Quinolyl)- and 3-(5-carbethoxyfuryl-2)coumarins

3-(2-Quinolyl)- and 3-(5-carbethoxyfuryl-2)coumarins were prepared by reaction of substituted salicylaldehydes and hetarylacetonitriles. Alkylation and acylation of 3-hetaryl-7-hydroxycoumarins were studied. __________ Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 432–434, September–October, 2005.     

Synthesis and Characterization of New Schiff Bases 2-(2-(2-(Aryl)Methyleneamino)Phenylthio) Ethylthio)-N-((aryl)Methylene)Benzeneamine

A series of Schiff bases containing four to six coordination sites N₂S₂ X₂(X = O,N) 2-(2-(2-(aryl)methyleneamino)phenylthio)ethylthio)-N-((aryl)methylene)benzeneamine (2c–f) were prepared from the reaction of 1,2-di(2-aminophenylthio)ethane (1) with aromatic aldehydes. All compounds were characterized by means IR, mass, ¹H and ¹³C NMR spectroscopy, and elemental analysis, and in the case of 2b with a single crystal X-ray diffraction. The X-ray crystal structure of 2b showed that the resonance occurs between aromatic rings, through the C=N bonds of the molecule.

Supplemental materials are available for this article. Go to the publisher's online edition of Phosphorus, Sulfur, and Silicon and the Related Elements to view the free supplemental file.     

Reactions of 3-(4-Aryl-2-thiazolyl)- and 3-(2-Benzothiazolyl)-2-iminocoumarins with N-Nucleophiles

The reaction of 3-(4-aryl-2-thiazolyl)- and 3-(2-benzothiazolyl)-2-iminocoumarins with N-nucleophiles was studied. This reaction gives 2-N-substituted 3-(4-aryl-2-thiazolyl)- and 3-(2-benzothiazolyl)iminocourmarins. N-Nucleophiles such as arylamines, heterocyclic amines, and hydrazine derivatives undergo this reaction.     

Selective Spectrophotometric Determination of Palladium (II) With 2-(5-Bromo-2-Pyridylazo)-5-(Diethylamino)-Phenol

Abstract

A spectrophotometric study of the Pd(II) complex of a reagent 2-(5-Bromo-2-Pyridylazo)-5-(diethylamino)-Phenol (5-Br-PADAP) is presented. A violet complex is formed at pH 3.53, and shows maximal absorbance at 585 nm with molar absorptivity of 3.86 × 10⁴ 1. mol^?1 cm^?1. Beer's law is obeyed up to 50 μ of Pd(II). The method offers the advantages of simplicity, high precision, requires no extraction and is very selective, where 5.0 mg Pt(VI) and 0.3 mg Au(III) ions do not interfere.     

(E)-N-芳基-3-[2-(8-羟基喹啉基)-乙烯基]咔唑的合成、抗氧化活性及促进鼠骨髓间质干细胞增殖的研究

设计合成了3-[2-(8-羟基喹啉基)-乙烯基]-N-对甲苯基咔唑(8)和3-[2-(8-羟基喹啉基)-乙烯基]-N-对甲氧苯基咔唑(9)两个新的化合物, 用IR, MS, 1H NMR和元素分析确认其结构. 并利用DPPH•方法, 超氧阴离子自由基( )法, 羟基自由基HO•法和噻唑蓝比色法(MTT法)分别测定了目标产物的抗氧化活性和调控鼠骨髓间质干细胞(MSCs)的作用. 结果表明, 这两种化合物对DPPH•自由基、超氧阴离子自由基和羟基自由基具有较强的抗氧化活性, 化合物9在低浓度时对鼠骨髓间质干细胞增殖有很好的促进作用.     

Acetals and ethers,XVII. One- or two-step syntheses of 2-(2-alkoxyethyl)-1,3-dioxacyclanes

2-(2-Alkoxyethyl)-1,3-dioxanes (1) were prepared by ap-toluenesulfonic acid-catalyzed, one-step reaction of propenal with a mixture of aliphatic alcohol and trimethylene glycol in good yields. The transacetalization reaction of 1,1,3-trialkoxypropanes (3) with ethylene glycol or propylene-(1,2)glycol afforded good yields of pure 2-(2-alkoxyethyl)-1,3-dioxolanes (5 or6), respectively. This reaction proceeds through an intermediate 1,3-dialkoxy-1-(2-hydroxyalkoxy)-propane.

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Ein- oder Zweistufensynthese von 2-(2-Alkoxyethyl)-1,3-dioxacyclanen

Zusammenfassung In der durchp-Toluolsulfonsäure — katalysierten, direkten Reaktion von Propenal mit einem Gemisch von aliphatischem Alkohol und Trimethylenglykol wurden die entsprechenden 2-(2-Alkoxyethyl)-1,3-dioxane (1) in guten Ausbeuten erhalten. Die Umacetalisierung von 1,1,3-Trialkoxypropanen (3) mit Ethylenglykol oder 1,2-Propylenglykol lieferte 2-(2-Alkoxyethyl)-1,3-dioxolane (5 oder6) in guten Ausbeuten. Die Umacetalisierungsreaktion von 1,1,3-Trialkoxypropanen verläuft über 1,3-Dialkoxy-1-(2-hydroxyalkoxy)-propane als Zwischenprodukte.

     

Synthesis of （S）-2-（3-Arylacrylamido）-3-{4-[2-（5-methyl-2-phenyloxazol-4-yl）ethoxy]phenyl}propanoic Acids

The synthesis of （S）-2-（3-arylacrylamido）-3-{4-[2-（5-methyl-2-phenyloxazol-4-yl）etho- xy]phenyl}propanoic acids is described. Their structures were confirmed by ^1H-NMR.     

Pd-catalyzed synthesis of 3-(diarylmethylene)-2-oxindoles and 3-(arylmethylene)-2-oxindoles

An efficient method for the stereoselective synthesis of 3-(diarylmethylene)-2-oxindoles and 3-(arylmethylene)-2-oxindoles via carbopalladation is described. In this approach, an Ugi-4-component reaction (4-CR) adduct was used as the starting material. A one-pot sequence involving intermolecular carbopalladation C-H activation/C-C bond formation efficiently afforded the oxindole derivatives.