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1-氨基-2-萘酚-4-磺酸邻菲啰啉稀土配合物的合成及性质 总被引:13,自引:1,他引:13
本文报道了在无水乙醇中合成卜氨基-2-萘酚-4-磺酸、邻菲哕啉与稀土氯化物三元固态配合物的方法。元素分析确定了配合物的化学组成,通过红外光谱、紫外光谱、荧光光谱、~1HNMR谱、热谱、X射线粉末衍射、电学性质、溶解度等手段对配合物进行了表征。 相似文献
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溴化铜的溴代反应结果表明:在反应温度为60℃,原料的摩尔配比为4-氨基-3,5-二氯苯乙酮∶溴化铜=1∶2,反应2.2h合成标题化合物,溴代产率可达95%以上 相似文献
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溴化铜的溴代反应结果表明:在反应温度为60℃,原料的摩尔配比为4-氨基-3,5-二氯苯乙酮∶溴化铜=1∶2,反应2.2h合成标题化合物,溴代产率可达95%以上 相似文献
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2 氨基 1,2,3,4,6 O 五乙酰葡萄糖是一种重要的医药中间体,主要是用于合成抗革兰氏阴性菌感染药物类脂A(LipidA)的结构类似物[1,2]。它一般选择盐酸氨基葡萄糖为起始原料,在低温下反应较长时间合成;或者先合成2 氨基 1,3,4,6 O 四乙酰葡萄糖,再乙酰化氨基得到[3,4]。但前者反应时间长,而后者后处理较麻烦。本实验以盐酸氨基葡萄糖和乙酸酐为反应原料,三乙胺为碱,在浓硫酸的催化下,室温下反应较短时间,即可得到目标物乙酰葡萄糖,反应过程采用薄层色谱法(TLC)监控[5]。并应用正交实验设计对影响收率的因素进行了考察。反应路线如下图… 相似文献
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细菌内毒素(LPS)是革兰氏阳性阴性菌细胞外膜层的主要成分,由其引起的革兰氏阴性杆菌脓度症和休克是导致战创伤病人死亡的主要原因之一。而从类脂A(LipidA)的结构出发,以非肽类物质拮抗内毒素受体CD-14为治疗手段的研究在国外刚刚起步。2-乙酰氨基-3,4,6-三乙酰葡萄糖是合成LipidA结构类似物的重要中间体[1,2]。它的合成一般是通过氨基葡萄糖五乙酸酯的选择性水解[3-6]脱去一个乙酰基得到。氨基葡萄糖五乙酸酯是通过氨基葡萄糖的乙酰化反应得到的,由于氨基葡萄糖不稳定,一般是用氨基葡萄糖的盐酸盐作为起始原料。由于… 相似文献
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6-取代苯并噻唑-2-氨基硫代磷酸二烷基酯的合成 总被引:1,自引:0,他引:1
用6-位取代的2-氨基苯并噻唑与三氯硫磷反应,合成了3个苯并噻唑-2-氨基硫代磷酰二氯,并由此合成了9个苯并噻唑-2-氨基硫代磷酸二烷基酯.讨论了苯并噻唑环上取代基对反应的影响和产物中硫代磷酸酯的烷基的空间效应对反应的影响.所合成的部分化合物对人喉鳞状细胞癌(Hep-2)具有一定的抑制能力. 相似文献
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Toshihiko Osaki Toshiyuki Tanaka Yutaka Tai 《Reaction Kinetics and Catalysis Letters》2003,79(2):319-324
Temperature-programmed reaction (TPR) of C60 and C70 with H2 was carried out on nickel in order to investigate the thermal stability of the fullerenes in the catalytic hydrogenation.
The TPR profiles showed two methanation peaks and the corresponding weight decrease above 420°C, indicating the hydrogenolysis
to CH4.
This revised version was published online in June 2006 with corrections to the Cover Date. 相似文献
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C60Co(Pph3)2的合成和表征 总被引:1,自引:0,他引:1
The fullerene complexe C60Co(Pph3)2 has been prepared by the reaction of C60 with CoCl2(Pph3)2 under a nitrogen atmosphere and refluxing, and characterized by elemental analyses, FT-IR, XPS, NMR, which appove that C60 coordinates to Co(Pph3)2 group in σ-π pattern and the electron is super conjugate over whole molecule. The result of redox property study show that the reduction potentiel of C60Co(Pph3)2 is more negative than that of C60, the reason may be the π electron dentensity of C60 in C60Co(Pph3)2 increases, which lead to it′s electron affinity decreasing. The thermostability experiment indicates that the oxidation decomposition temperature of C60Co(Pph3)2 is lower than that of pure C60. 相似文献
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Hydrothermal Synthesis and Crystal Structure of a New 2D Zinc(Ⅱ) Coordination Polymer with 2-Aminoethanesulfonic Acid 总被引:1,自引:0,他引:1
A new 2D Zn(Ⅱ) coordination polymer [Zn(TAU)2]n (1, HTAU=2-aminoethane- sulfonic acid) constructed by 2-aminoethanesulfonic acid ligand has been hydrothermally synthesized by the reaction of Zn(CH3COO)2 and 2-aminoethanesulfonic acid with a 1:2 mole ratio and characterized by single-crystal X-ray diffraction, elemental analysis, infrared spectroscopy and thermogravimetric analysis. Crystal structural analysis reveals it crystallizes in monoclinic, space group P21/c with a=8.672(4), b=6.523(3), c=9.134(5) , β=115.441(5)°, V=466.6(4) 3, Mr=313.65, Z=2, Dc=2.232 Mg·m-3, F(000) =320, μ(MoKα)=3.091 mm-1, the final R=0.0358 and wR=0.0919 for 2026 observed reflections with Ⅰ > 2σ(Ⅰ). In the structure, each zinc(Ⅱ) ion is coordinated in a slightly distorted octahedron, and each μ3-TAU– acts as a bridge to bond three neighboring Zn(Ⅱ) ions to form an infinite 2D network structure. 相似文献
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Four piperazine-appended [60] fullerenes (1a-1d) were synthesized and characterized. Their activities of scavenging radical
were studied via UV-Vis and EPR. The results indicate that light irradiation is of advantage to increase the activity of scavenging
radical. 相似文献
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Bo-Cheng Wang Likey Chen Kuei-Jen Lee Chang-Yuan Cheng 《Journal of Molecular Structure》1999,469(1-3):127-134
The spectral analysis indicates that all isomers of C60O, C70O and C60O2 have an epoxide-like structure (an oxygen atom bridging across a C–C bond). According to the geometrical structure analysis, there are two isomers of fullerene monoxide C60O (the 5,6 bond and the 6,6 bond), eight isomers of fullerene monoxide C70O and eight isomers of fullerene dioxide C60O2. In order to simulate the real reaction conditions at 300 K, the calculation of the different isomers of C60O, C60O2 and C70O fullerene oxides was carried out using the semiempirical molecular dynamics method with two different approaches: (a) consideration of the geometries and thermodynamic stabilities, and (b) consideration of the ozonolysis mechanism. According to the semiempirical molecular dynamic calculation analysis, the probable product of this ozonolysis reaction is C60O with oxygen bridging over the 6–6 bond (C2v). The most probable product in this reaction contains oxygen bridging across in the upper part of C70 (6–6 bond in C70O-2 or C70O-4) an epoxide-like structure. C60O2-1, C60O2-3 and C60O2-5 are the most probable products for the fullerene dioxides. All of these reaction products are consistent with the experimental results. It is confirmed that the calculation results with the semiempirical molecular dynamics method are close to the experimental work. The semiempirical molecular dynamics method can offer both the reaction temperature effect by molecular dynamics and electronic structure, dipole moment by quantum chemistry calculation. 相似文献
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本文在惰性气氛中通过取代反应合成出富勒烯金属配合物C60Pd(Ph2PCH2CH2CH2CH2PPh2),采用元素分析、红外光谱、紫外可见光谱、光电子能谱以及X射线粉末衍射等手段对产物进行表征,同时研究了产物的氧化还原性能及热稳定性能。此外,在光电化学电池中测定了C60Pd(Ph2PCH2CH2CH2CH2PPh2)在GaAs电极上形成n+n型异质结的光伏效应,结果表明:产物具有优良的光电转化性能,尤其是在BQ/H2Q介质电对中,光生电压最大达到212 mV;当C60Pd(Ph2PCH2CH2CH2CH2PPh2)薄膜厚度为1 μm时,光伏效应值最大。 相似文献
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Pseudostate decomposition of static dipole polarizabilities for ground state H2+ from a Givens-Householder diagonalization of the excitation operator (H" height="17" width="20">0−E0) over an N-term basis of appropriate symmetry allows for a rapidly convergent evaluation of C6 dispersion coefficients for H2+–H2+. 27-term pseudospectra of hypergeneralized James functions with a 30-term GGJ+ unperturbed wavefunction with an optimized scale factor δ=0.918 at R=20 give C6 and γ6 values that are accurate to no less than nine significant figures. 相似文献
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Toshihiko Osaki Tomoki Hamada Yutaka Tai 《Reaction Kinetics and Catalysis Letters》2003,78(2):217-223
The catalytic hydrogenation of C60 on Ru, Rh and Ir produced C60H18 mainly, while Pd, Pt, Co and Ni catalysts gave C60H36 principally. Very little activity was observed on Au and Fe. The higher hydrogenated fullerene obtained on Pd, Pt, Co and
Ni was ascribed to the smaller % d-character of the metallic bond, on which the fullerene and hydrogen may more strongly be
adsorbed.
This revised version was published online in August 2006 with corrections to the Cover Date. 相似文献