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制得二(1,8-萘啶氮氧化物)合硝酸钍和铀酰配合物,元素分析确定其组成为Th(C_3H_6N_2O)_2(NO_3)_4和UO_2(C_3H_6N_2O)_2(NO_3)_2。通过红外光谱、荧光光谱、摩尔电导、差热热重分析等方法,研究了配合物的性质。 相似文献
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1,8-萘啶氮氧化物(简写napyo)是一种配位能力较强的中性配体,关于它与金属离子形成的配合物已有报道.但工作主要集中在配合物的合成及性质的研究,它与金属离子形成的配合物的晶体结构至今未见报道.本工作旨在探讨1,8-萘啶氮氧化物与铜(Ⅱ)的配合物中配体与金属离子的配位情况以及铜(Ⅱ)的配位构型. 相似文献
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《Journal of Coordination Chemistry》2012,65(2-3):169-185
Abstract The synthesis of Ti(iso)Cl2 (iso = the dianion of 2, 2′-ethylidenebis(4, 6-di-rert-butylphenol)) is described. Metathesis reactions of this complex with Grignard reagents, as well as alkali metal salts, yielded Ti(iso)X2 (X = CH3, CH, Ph, CH2SiMe3, OCMe3, or NMe2). Reactions of the Ti-C bond in Ti(iso)(CH3)2 toward halogens, active hydrogen compounds, and acetone were studied. In addition. Ti(iso)(X)(Y) (X = CI or CH3; Y = OC6H2-2, 6-tBu2-4-Me) could be prepared with the formation of only one coordination isomer. The new complexes have been thoroughly characterized by 1H and 13C NMR spectroscopies. The solid state structure of Ti(iso)Cl2 was determined via single crystal X-ray diffraction methods. The complex is monomeric, with approximately tetrahedral geometry about the titanium ion. The structure of Ti(iso)Cl2 is compared to that of Ti(ultra)Cl2 (ultra = the dianion of 2, 2′-mefhylenebis(6-tert-butyl-4-mefhylphenol)), which was redetermined to greater precision. 相似文献
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二 (亚乙基 二硫) 四硫富瓦烯侧基聚合物的合成及表征秦伟朱道本(中国科学院化学研究所有机固体开放研究实验室北京100080)关键词聚乙炔,导电性,ET衍生物自80年代初期发现第一个有机超导体以来,至今已发现了近50种有机超导体[1],超导转变温度... 相似文献
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双邻位甲基取代的聚芳醚酮合成与表征 总被引:3,自引:0,他引:3
两种单体 2 ,2′ ,6 ,6′ 四甲基 4 ,4′ 二苯氧基二苯酮 (o M2 DPOBP)和 2 ,2′ ,6 ,6′ 四甲基 4 ,4′ 二苯氧基三苯二酮 (o M2 DPOTPDK) ,分别与对苯二甲酰氯 (TPC)和间苯二甲酰氯 (IPC)低温亲电溶液缩聚 ,合成了 4种含双邻位甲基侧基聚醚酮醚酮酮 (DM PEKEKK和DM PEKEKMK)及含双邻位甲基侧基聚醚酮酮醚酮酮 (DM PEKKEKK和DM PEKKEKMK)聚合物 .用FT IR、1 H NMR、DSC、TGA、WAXD等方法对聚合物进行了表征 ,研究了聚合物的溶解性能 .结果表明 ,该 4种聚合物具有较高的玻璃化转变温度 ,良好的热稳定性和优良的溶解性能 . 相似文献
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《Journal of Coordination Chemistry》2012,65(1):89-103
Abstract A series of complexes having the general formula, [Co(CNR)3(PR3)2]X2, X = ClO4, BF4 with CNR = CNCMe3, CNCHMe2, CNC6H11. CNCH2Ph and PR3 = PPh3, P(C6H4Me-p)3, P(C6H4OMe-p)3 has been synthesized and characterized. Synthesis can be achieved by reaction of [Co(CNR)4(AsPh3)2]X2 complexes with controlled excess of PR3 ligands, and by AgClO4/AgBF4 oxidation of the [Co(CNR)3(PR3)2]X complexes. The latter procedure is preferable. Alternate syntheses of the [Co(CNR)3(PR3)2]X complexes have also been employed. Five-coordinate Co(II) complexes have not been obtained using CNCMe3 with P(C6H4Me-p)3 ligands, CNCH2Ph with P(C6H4OMe-p)3 ligands, or CNC4H9-n with PPh3 ligands. [Co(CNC-Me3)3{P(C6H4Cl-p)3}2]ClO4 produced only [Co{CNCMe3)4H2O](ClO4)2 upon forced oxidation with excess AgClO4. [Co(CNR)3(PR3)2]X2 complexes appear to undergo varying degrees of distortion from regular (i.e., D 3h symmetry) axially-disubstituted trigonal bipyramidal coordination in the solid state, as evidenced by v(-N°C) IR patterns, but to assume regular trigonal bipyramidal coordination in solution. Effective magnetic moments indicate one-electron paramagnetism, and solution electronic spectra are compatible with trigonal bipyramidal coordination. 相似文献
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《Journal of Coordination Chemistry》2012,65(4):215-220
Abstract The crystal and molecular structure of [Cu(p-NO2C6 H5CH2CONHCH2CO2)2 (H2O)2] has been determined by single-crystal, x-ray diffraction techniques. The compound is centrosymmetric crystallizing in a monoclinic unit cell (P21/c) with two molecules per unit cell. The cell dimensions are: a = 11.588(1)A, b = 11.405(1)A, c = 8.041(1)Å and β = 93.47 · (1). The structure was solved by Patterson methods and refined to a value of R = 0.063. The coordination about the copper assumes an unexpected square planar geometry in which two phenaceturic moieties are each coordinated through the carboxylic oxygen (Cu—O = 1.933A) and the two waters complete the coordination (Cu—Ow = 1.959Å). The overall conformation of the phenaceturic acid is retained although there is a rotation of 180° about the peptide C—N bond. 相似文献
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R. Gupta Y. P. Singh A. K. Rai 《Phosphorus, sulfur, and silicon and the related elements》2013,188(1-4):397-401
Abstract The interaction of the sodium salts of thiosemicarbazones with diphenylantimony chloride in 1:1 molar ratio in benzene solution lead to the formation of derivatives, Ph2Sb[SC(NH2)NN: C(R)R′] where R = H; R′ [dbnd] C6H5, CH3OC6H4, C6H5CH[dbnd]CH, and R′ [dbnd] CH3; R′[dbnd]C6H5, CH3OC6H4, C6H4CH3, respectively. The resulting complexes have been characterised on the basis of elemental analyses and molecular weight determination. The mode of bonding of the ligands with the metal atom has been proposed on the basis of I.R., 1H and 13C NMR studies. All these ligands are found to behave as monofunctional bidentate moiety in these complexes. 相似文献
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N-(2-乙烯氧乙基)-1,8-萘二甲酰亚胺聚合物与共聚物的荧光行为 总被引:2,自引:0,他引:2
<正> 我们曾报道过一系列含有给电子生色基团的丙烯酰类单体如甲基丙烯酸二甲氨基苄酯、N-(N′,N′-二甲氨基苯基)丙烯酰胺类、8-丙烯酰氧喹啉类、N-丙烯酰-N′-苯基哌嗪类、N-丙烯酰-N′-嘧啶哌嗪类、N-甲基丙烯酰氧乙基-N-甲基代苯胺等的合成、聚合、引发行为以及它们的聚合物的荧光行为。这些单体结构的共同点在于其双键为缺电子性而生色基团为给电子性,因而在荧光行为上,由于生成激基复合物或电荷转移而发生荧光 相似文献
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《Journal of Coordination Chemistry》2012,65(2):95-103
Abstract A complex of europium perchlorate with methylene bis(diphenylphosphine oxide) (HMPPO), [Eu(HMPPO)4](ClO4)3·2H2O has been synthesized and characterized by X-ray crystallography, infrared spectroscopy and thermal analysis. The X-ray structure of the complex shows Eu(III) is coordinated by eight oxygen atoms from four HMPPO ligands, forming a distorted square antiprism coordination geometry. The complex crystallizes in space group P-1 with cell parameters a = 15.807(3), b = 17.868(4), c = 20.656(4) Å, α = 86.85(3)°, β = 82.33(3)°, γ = 66.75(3)°. The final Rl and Rw are 0.0803 and 0.1994, respectively, for 9540 observed reflections [I > 2[sgrave](I)]. Its luminescent properties have also been studied. 相似文献
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用辛酸亚锡[Sn(Oct)2]作催化剂,进行了端羟基聚乙二醇(PEG)和1,4 二氧六环酮(DON)的共聚反应,得到嵌段共聚物PDON b PEG b PDON.根据1H NMR谱图计算结果表明共聚物组成随两组分投料比而改变.共聚物的DSC结果表明嵌段共聚物中PDON的熔点和结晶度的变化相对较小,而PEG的熔点及结晶度均有较大降低.将PEG引入可大大提高材料的吸水率. 相似文献
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含亚甲基和双二氮杂萘酮结构的聚芳酮的合成与性能 总被引:1,自引:0,他引:1
聚芳醚酮是一类重要的具有优异综合性能的工程塑料 ,它具有高的热稳定性、尺寸稳定性、耐溶剂性、好的加工性能和电性能 ,因而它经常作为复合材料的基质、粘合剂等被广泛的应用于航空、航天和电子等领域 .近几十年来 ,人们付出了很大的努力去开发聚芳醚酮新品种[1,2 ] .本研究组以 4 (4′ 羟基苯氧基 ) 2 ,3 二氮杂萘 1 (2H) 酮为缩聚单体制备了一系列的性能优良的聚芳醚酮[3~ 6] ,在主链中引入高密度的氮杂萘酮结构是获得高热稳定性和良好溶解性的重要途径 .由单体中含有更多的氮杂萘酮结构获得可溶解且耐温等级更高的聚芳酮是人们期… 相似文献
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四氯合铂(Ⅳ)类配合物的合成表征及其抗癌作用 总被引:1,自引:0,他引:1
顺铂作为第一代无机抗癌药物已被广泛使用,但副作用较大。碳铂是第二代无机抗癌药物,虽肾毒性和肠胃道反应比顺铂低,但在某些肿瘤治疗方面,活性低于顺铂。最近,Aderson等发现tetraplatin(tetrachloro(d,1-trans)1,2-dimino cyclohexane platinum 相似文献
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邻菲罗啉单氮氧化物(PhenNO),分子内存在较大的共轭π键,对过渡金属离子具有良好的配位性能,其中某些配合物具有荧光。迄今为止,Sc、Y与该配体的配合物尚未见文献报道。本文在非水介质中合成出Sc(Ⅲ)、Y(Ⅲ)盐与PhenNO的五个新配合物,研究了它们的组成及其有关性质。由于Sc(Ⅲ)和Y(Ⅲ)的离子半径不同,它们的配位行为及其配合物的性质应有差异,试验结果证实了预测的结果。 相似文献