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Property Measurement of [aP_(4443)][Gly]-H_2O Binary System and Its Absorption to Carbon Dioxide
[aP4443][Gly]-H2O两元体系物性测定及CO2吸收性能

WANG Zan-xia,FU Li,ZHANG Jian-min,XU Hui,SHANG Ying,ZHANG Li,MA Qian-qian,WANG Zhen-xian,
王赞霞
,傅莉,张建敏,徐慧,商莹,张丽,马倩倩,王振贤

过程工程学报 , 2011,
Abstract: The viscosity and conductivity of 3-aminopropyl-tributylphosphonium aminoethanic acid salt(aP4443]Gly]),(3-aminopropyl)tributylphosphonium L-a-aminopropionic acid salt(aP4443]Ala]),and(3-aminopropyl)tributylphosphonium L-a-amino-4-methylvaleric acid salt(aP4443]Val]),and binary system of aP4443]Gly]-H2O were investigated from 298.15 to 343.15 K respectively.It was found that the viscosity of these pure ionic liquids increased with the alkyl length,and the conductivity decreased.For the binary system...
[aP4443][Gly]-H2O两元体系物性测定及CO2吸收性能  [PDF]
王赞霞,傅莉,张建敏,徐慧,商莹,张丽,马倩倩,王振贤
过程工程学报 , 2011,
Abstract: 采用两步法合成了双氨基功能化季?类离子液体3-丙胺基-三丁基?甘氨酸盐([aP4443][Gly])、3-丙氨基-三丁基?丙氨酸盐([aP4443][Ala])和3-丙氨基-三丁基?缬氨酸盐([aP4443][Val]),研究了[aP4443][Gly]与水构成的两元体系的粘度和电导率的变化.结果表明,在298.15~343.15K温度范围内,随阴离子烷基链增长离子液体粘度增大、电导率减小;随温度升高、含水量增加,[aP4443][Gly]-H2O两元体系的粘度减小、电导率增大.CO2吸收实验表明,添加水后离子液体[aP4443][Gly]对CO2的吸收速率均提高;当水摩尔分数小于0.50时,饱和吸收量增大;当水摩尔分数从0.50增大到0.75时,饱和吸收量减小,说明添加适量水可大幅改善[aP4443][Gly]吸收CO2的行为.
In situ time-resolved FTIR investigation on the reaction mechanism of partial oxidation of methane to syngas over supported Rh and Ru catalysts
Weizheng Weng,Mingshu Chen,Qiangu Yan,Tinghua Wu,Zisheng Chao,Yuanyan Liao,Huilin Wan
Chinese Science Bulletin , 2000, DOI: 10.1007/BF02886360
Abstract: In situ time-resolved FTIR spectroscopy was used to study the reaction mechanism of partial oxidation of methane (POM) to synthesis gas and the reaction of CH4/O2/He (2/1/45, molar ratio) gas mixture with adsorbed CO species over Rh/SiO2, Ruγ-Al2O3 and Ru/SiO2 catalysts at 500–600°C. It was found that CO is the primary product of POM reaction over reduced and working state Rh/SiO2 catalysts. Direct oxidation of CH4 is the main pathway of synthesis gas formation over Rh/SiO2 catalyst. CO2 is the primary product of POM over Ru/gg-Al2O3 and Ru/SiO2 catalysts. The dominant reaction pathway for synthesis gas formation over Ruγ-Al2O3 catalyst is via the reforming reactions of CH4 with CO2 and H2O. For the POM reaction over Rh/SiO2 and Ru/gg-Al2O2 catalysts, consecutive oxidation of surface CO species is an important pathway of CO2 formation.
[Gd2(Gly)6(H2O)4](ClO4)6(H2O)5的合成、晶体结构与热化学研究  [PDF]
卢基林,刘北平,谭志诚,张大顺,李琳,陈远道,史全<>
化学学报 , 2007,
Abstract: 利用微波技术合成了配合物[Gd2(Gly)6(H2O)4](ClO4)6(H2O)5,进行了化学成分分析、红外表征和热重分析.应用X衍射仪测定其晶体结构,该晶体为一维链结构,属三斜晶系,P空间群,晶胞参数a=1.1569(17)nm,b=1.4138(2)nm,c=1.5642(2)nm,α=96.910(2)°,β=102.735(2)°,γ=105.512(2)°,V=2.3606(6)nm3,Z=2,Dc=2.144g?cm-3.采用精密溶解-反应量热计,通过设计热化学循环,计算出了该配合物的标准摩尔生成焓为-(7960.73±3.23)kJ?mol-1.
Evaluation of the leishmanicide action of ethanol extracts of Crotalaria retusa L. (Fabaceae)
Rocha, Louisianny Guerra da;Arag?o, Cícero Flávio Soares;Loiola, Maria Iracema Bezerra;Bezerril, Renata Aracyl;Paiva, Nara Ruth Freitas;Holanda, Cecília Maria Carvalho Xavier de;Brito, Maria Edileuza Felinto de;
Revista Brasileira de Farmacognosia , 2009, DOI: 10.1590/S0102-695X2009000100012
Abstract: the purpose of the present work is to conduct an evaluation of the cytotoxicity of ethanol extracts and the total alkaloid fraction (taf) from crotalaria retusa for procyclic promastigotes cells of leishmania chagasi. the kinetic study of extraction assisted by ultrasound of the total alkaloids present in crotalaria retusa made it possible the optimization of the extraction parameters. it was evaluated the leishmanicide action of the taf which did not show toxic activity for cells of the parasite in high concentrations. it was observed a powerful leishmanicide action of the ethanol extracts (10 and 30%) after the concentration of 5.6 mg/ml of crotalaria retusa, and the ethanol present in the extractive solution (10 and 30%) in the concentration from 70 and 210 x 10-4 %, respectively. these results suggest that the cytotoxicity of the ethanol extract of crotalaria retusa at 10 and 30% for cells of leishmania chagasi, can be associated only to the concentration of the alcohol present in the extract.
Ru/ZrO2.хH2O催化剂催化肉桂醛选择性加氢制肉桂醇  [PDF]
刘洪磊,袁茂林,郭彩红,李瑞祥,付海燕,陈华,李贤均
催化学报 , 2011, DOI: 10.3724/SP.J.1088.2011.10231
Abstract: ?采用共沉淀法制备了7.5%Ru/ZrO2.хH2O催化剂,运用N2物理吸附-脱附法、X射线衍射、X射线光电子能谱和高分辨透射电子显微镜等技术对催化剂进行了表征,并用于催化肉桂醛选择加氢制肉桂醇反应中,考察了温度、H2压力和溶剂对肉桂醛转化率和肉桂醇选择性的影响.结果表明,肉桂醛转化率随着温度或H2压力的升高而升高,而肉桂醇选择性则随之下降.该催化剂在极性溶剂中比在非极性溶剂中表现出更高的活性和肉桂醇选择性.尤其在极性溶剂三乙胺(Et3N)中反应活性最高,且具有较高的肉桂醇选择性.在Et3N中加入水可进一步提高反应活性和选择性.以V(Et3N)/V(H2O)=4的混合物为溶剂,在4MPa和70°C的优化条件下,反应6h,肉桂醛转化率为97.9%,肉桂醇选择性达85.2%.
Synthesis, characterization and properties of ruthenium-substituted polyoxometallic acid H6Ru(H2O)FeW11O39·18H2O with Keggin structure
ShengXian Xu,XueFei Wu,QingYin Wu,WenFu Yan
Chinese Science Bulletin , 2011, DOI: 10.1007/s11434-011-4490-3
Abstract: The ruthenium-substituted polyoxometallic acid H6[Ru(H2O)FeW11O39]·18H2O was synthesized by stepwise acidification and stepwise addition of solutions of the component elements, and an ion-exchange-cooling method. The product was characterized using inductively coupled plasma spectrometry (ICP), Infrared Spectroscopy (IR), Ultraviolet Spectroscopy (UV), and X-ray diffraction (XRD). The results show that this complex has the Keggin structure. The determination of the thermal stability and proton conductivity of this polyoxometallic acid was carried out by a thermogravimetric-differential thermal analysis (TG-DTA) and electrochemical impedance spectroscopy (EIS).
稀土高氯酸盐-甘氨酸配合物[Sm2(Gly)6(H2O)4](ClO4)6·5H2O单晶体的低温热容及标准生成焓  [PDF]
吴新明,刘义,李琳,刘平,高秀英,谭志诚,屈松生
化学学报 , 2001,
Abstract: 合成了稀土高氯酸盐-甘氨酸配合物晶体。经热重、差热、化学化析及有关文献对比,确定其组成是[Sm2(Gly)6(H2O)4](ClO4)6·5H2O,单晶结构,纯度是99.0%.熔点分析仪分析知其没有固定熔点,在79~370K温区,用高精密全自动绝热量仪对单晶配合物进行了热容测定,发现该配合物在低温段没有反常热容。348.07K附近是该配合物的分解温区,配合物的分解温度、分解熵和分解焓分别是346.89K,44.669kJ/mol和128.77J/K·mol。计算机拟合了热容对温度的多项式方程,在79~318K温区,Cp=1294.56+624.17K-11.893X^2+75.075X^3+23.762X^4.在常压,298.15K下用具有恒温环境的反应热量计测定了配合物的标准生成焓值为-8022.405kJ/mol。
[Cu(Gly-Gly)(Im)]·2H2O的合成、晶体结构及热化学性质  [PDF]
赵艳茹,王宏胜
科技导报 , 2013, DOI: 10.3981/j.issn.1000-7857.2013.08.009
Abstract: 以五水硫酸铜、甘氨酰甘氨酸(Gly-Gly)、咪唑(Im)为原料,制备了甘氨酰甘氨酸咪唑铜配合物,通过X射线单晶衍射测定了配合物的结构。该晶体属单斜晶系,P21/n空间群,a=1.0213(6)nm,b=0.7023(4)nm,c=1.5911(9)nm,β=102.393(9)°,V=1.1147(11)nm3,Z=4。用溶解量热法分别测定了CuSO4·5H2O(s)+Gly-Gly(s)+Na2SO4(s)、Im(s)和[Cu(Gly-Gly)(Im)]·2H2O(s)、NaHSO4·H2O(s)在2mol/LHCl中的溶解焓。根据Hess定律设计了一个热化学循环,计算得到CuSO4·5H2O(s)+Gly-Gly(s)+Im(s)+Na2SO4(s)=[Cu(Gly-Gly)(Im)]·2H2O(s)+2NaHSO4·H2O(s)+H2O(l)的反应焓ΔrHmθ(298.15K)=(36.7634±1.1325)kJ/mol,进而求出[Cu(Gly-Gly)(Im)]·2H2O(s)的标准生成焓ΔrHmθ{[Cu(Gly-Gly)(Im)]·2H2O(s),298.15K}=(-1770.3±1.4)kJ/mol。
Synthesis of Ru alkylidene complexes  [cached]
Renat Kadyrov,Anna Rosiak
Beilstein Journal of Organic Chemistry , 2011, DOI: 10.3762/bjoc.7.14
Abstract: The present work describes the robust synthesis of Ru alkylidene complexes (PCy3)2Cl2Ru=CHR – precursors for metathesis catalysts. Moreover, the dynamic behavior of complexes where R = 2-naphthyl and 2-thienyl was studied. 1H NMR techniques were employed to establish the preferred conformations in solution for both complexes and the energy barrier for rotation around single (Ru=)CH–C(thienyl) bond was estimated (ΔG≠303K = 12.6 kcal/mol).
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