邻香草醛缩5-氨基水杨酸Schiff碱稀土配合物的合成与表征

通过邻香草醛和5-氨基水杨酸的反应合成了一个新的四齿Sch iff碱配体HL,红外光谱和核磁共振氢谱证明配体中有四个配位原子,分别是酚羟基氧原子、亚甲胺基团上的氮原子以及两个羧基氧原子。通过REC l3与此配体的反应合成了六种新型Sch iff碱固体稀土配合物,并通过元素分析、IR、UV-V IS1、H-NM R、热分析和摩尔电导率等物理测试手段考察了配合物的组成。结果表明,配体通过其酚羟基氧原子、亚甲胺基团上的氮原子以及两个羧基氧原子与中心离子配位,C l-也参与了配位,中心离子的配位数是7。配合物的组成可能为:RE2L3C l3.nH2O(RE=L a,N d,G d,D y,Y b,Y)。     

Syntheses and Characterizations of Cu-Ln Heterobinuclear Complexes with Schiff Base from 3-Formylsalicylic Acid and Ethylene Diamine

ＴｈｅｈｏｍｏａｎｄｈｅｔｅｒｏｂｉｎｕｃｌｅａｒｃｏｍｐｌｅｘｅｓｏｆｔｈｅｄｂｌｏｃｋｅｌｅｍｅｎｔｓｃｏｏｒｄｉｎａｔｅｄｗｉｔｈＥＳｈａｖｅｂｅｅｎｓｔｕｄｉｅｄ[1,2].Ｈｏｗｅｖｅｒ,ｌａｎｔｈａｎｉｄｅｈｅｔｅｒｏｂｉｎｕｃｌｅａｒｃｏｍｐｌｅｘｅｓｗｉｔｈｔｈｉｓｌｉｇａｎｄｈａｖｅｒａｒｅｌｙｂｅｅｎｒｅｐｏｒｔｅｄ.ＵｓｉｎｇＮａ2ＣｕＥＳ·Ｈ2Ｏａｓｌｉｇａｎｄ,ｗｅｓｙｎｔｈｅｓｉｚｅｄｓｅｖｅｎｈｅｔｅｒｏｂｉｎｕｃｌｅａｒｃｏｍｐｌｅｘＣｕＬｎＥＳＣｌ·ｎＨ2Ｏ(Ｆｉｇ.1,Ｌｎ=…     

含N_2O_2四齿希夫碱配体的稀土有机配合物的合成和表征

室温下 ,采用 Schlenk操作技术 ,用 Cp3L n和对称的希夫碱双水杨醛缩邻苯二胺 ( H2 SAL OPHEN)为原料 ,物质的量之比为 1∶ 1,在四氢呋喃介质中反应 ,合成了六个新型配合物 Cp L n SAL OPHEN( L n=Y,Pr,Sm,Ho,Er,Tm)。所有这些配合物都经过了元素分析、IR和 Ms表征     

Synthesis and Characterization of Lanthanum Complexes with Amino Acid Schiff Base

Ｉｎｔｈｅｌｉｖｉｎｇｂｅｉｎｇｓ ,ｃａｌｃｉｕｍｉｏｎｐｏｓｓｅｓｓ ｅｓｍａｎｙｋｉｎｄｓｏｆｉｍｐｏｒｔａｎｔｂｉｏｌｏｇｉｃａｌｆｕｎｃｔｉｏｎ .Ｔｈｅｒａｄｉｕｓａｎｄｔｈｅｃｏｏｒｄｉｎａｔｅａｃｔｉｏｎｏｆｌａｎ ｔｈａｎｕｍｉｏｎａｒｅｓｉｍｉｌａｒｔｏｔｈａｔｏｆｃａｌｃｉｕｍｉｏｎ .Ｃｏｎｓｅｑｕｅｎｔｌｙ ,ｌａｎｔｈａｎｕｍｉｏｎ ,ｗｈｉｃｈｅｎｔｅｒｓｔｈｅｂｏｄｙ ,ｗｉｌｌｒｅｐｌａｃｅｃａｌｃｉｕｍｉｏｎａｎｄｓｈｏｗａｓｅｒｉｅｓｏｆｂｉｏｌｏｇｉｃａｌｅｆｆｅｃｔｓ…     

稀土(Ⅲ)硝酸盐与4-羟基-3-甲氧基苯甲醛缩乙二胺双希夫碱配合物的合成与性质

由双希夫碱４－羟基－３－甲氧基苯甲醛缩乙二胺与稀土（Ⅲ）硝酸盐（Ｌａ，Ｎｄ，Ｇｄ，Ｔｂ，Ｈｏ），合成了五种固体配合物。对配合物进行了元素分析、摩尔电导、红外光谱、紫外光谱、差热—热重分析。确定了配合物的组成为ＬｎＬ（ＮＯ３）３。     

Synthesis and Characterization of Ln(NO_3)_3-Phen-Fu Ternary Complexes

ＳｙｎｔｈｅｓｉｓａｎｄＣｈａｒａｃｔｅｒｉｚａｔｉｏｎｏｆＬｎ（ＮＯ３）３ＰｈｅｎＦｕＴｅｒｎａｒｙＣｏｍｐｌｅｘｅｓＬｉｎＪｉｙｕｎ（林纪筠），ＭａＤｅｊｉａｎ（马德建）（ＤｅｐａｒｔｍｅｎｔｏｆＣｈｅｍｉｓｔｒｙ，ＥａｓｔＣｈｉｎａＮｏｒｍ...     

水杨醛氨基酸Schiff碱与硫酸钕配合物的研究

本文合成了未见文献报道的水杨醛缩 DL—亮氨酸 Schiff碱钕配合物和水杨醛缩 L—异亮氨酸 Schiff碱的钕配合物。通过元素分析、摩尔电导、红外光谱、紫外光谱、荧光光谱、差热—热重分析等手段对配合物的组成和性质进行了确定和表征 ,两种配合物的组成可能为 Nd2 (Sal- L ue) 2 (SO4) 2 、Nd3 (Sal- IL ue) 2 (SO4) 2 · 2 H2 O。     

硫酸钆与水杨醛氨基酸Schiff碱配合物的研究

用硫酸钆与水杨醛氨基酸Ｓｃｈｉｆ碱，在水溶液中反应，合成了五种新的配合物，通式为Ｇｄｍ（ＳａｌＡＡ）ｎ（ＳＯ４）ｐ·ｘＨ２Ｏ（式中Ｓａｌ＝水杨醛、ＡＡ＝甘氨酸、Ｌ谷氨酸、Ｌ蛋氨酸、Ｌ胱氨酸和Ｌ赖氨酸，ｍ＝１～４，ｎ＝１～２，ｐ＝０、１、２，ｘ＝３、８、１２）。通过元素分析、摩尔电导、红外光谱、荧光光谱、紫外－可见光谱、差热热重分析对合成配合物的组成、性质进行了研究。     

Synthesis and Application of Lanthanide Complexes with Schiff Base of Pridoxylidence-Glycine

Ｔｈｅｈａｒｍｆｕｌｎｅｓｓｏｆｈｅａｖｙｍｅｔａｌｅｌｅｍｅｎｔｓｏｎｐｌａｎｔｓｉｓｏｎｅｏｆｔｈｅｓｅｒｉｏｕｓｅｎｖｉｒｏｎｍｅｎｔａｌｐｒｏｂｌｅｍｓｏｆｔｈｅｍｏｄｅｒｎｗｏｒｌｄ .Ｉｎｒｅｃｅｎｔｙｅａｒｓ ,ｔｈｅｓｔｕｄｙｏｎｔｈｅｍｉｓａｌｓｏｏｎｅｏｆｖｅｒｙａｃ ｔｉｖｅｒｅｓｅａｒｃｈｐｒｏｊｅｃｔｓｉｎｐｌａｎｔｐｏｌｌｕｔｉｏｎｅｃｏｌｏｇｙｆｉｅｌｄｓ[1～ 6 ] .ＬａｎｔｈａｎｉｄｅｃｏｍｐｌｅｘｅｓｗｉｔｈｔｈｅＳｃｈｉｆｆｂａｓｅａｒｅａｃｌａｓｓｏｆｃｏｍｐｏｕ…     

稀土与磺胺甲基异(口恶)唑的西佛碱配合物及其抗氧化作用

以磺胺甲基异口恶唑与对羟基苯甲醛合成一种新西佛碱(H2L),并用此配体制备8个稀土配合物,通过元素分析、红外光谱、核磁共振、热分析、摩尔电导和溶解性试验对配合物进行了表征。配合物的组成为LnL(OH).nH2O(Ln为稀土三价离子,L为去质子形式的西佛碱配体,n=1~2)。两种抗氧化实验都表明稀土配合物具有较好的抗氧化性能,比配体本身的作用更佳。     

Studies on Plant Calmodulin and Its Interaction with Antagonist W7 by Ln3+ Luminescence Probes

ＳｔｕｄｉｅｓｏｎＰｌａｎｔＣａｌｍｏｄｕｌｉｎａｎｄＩｔｓＩｎｔｅｒａｃｔｉｏｎｗｉｔｈＡｎｔａｇｏｎｉｓｔＷ７ｂｙＬｎ３＋ＬｕｍｉｎｅｓｃｅｎｃｅＰｒｏｂｅｓＬｉｕＤｅｌｏｎｇ（刘德龙），ＹａｎｇＹａｎｓｈｅｎｇ（杨燕生）（Ｄｅｐａｒｔｍｅ...     

稀土与苯并咪唑甲基酮缩二乙三胺Schiff碱配合物的合成、表征及生物活性

以邻苯二胺、乳酸、二乙三胺为原料合成双苯并咪唑甲基酮缩二乙三胺Schiff碱化合物,在无水乙醇溶剂中,所得的化合物与稀土离子(Ce3 、Nd3 、Sm3 )配合,合成了三种新型稀土配合物,并对其进行了元素分析、红外光谱测试、差热热重及生物活性研究。钕与苯并咪唑甲基酮缩二乙三胺Schiff碱的配合物对大肠杆菌和霉菌均有较好的杀菌活性;钐与苯并咪唑甲基酮缩二乙三胺Schiff碱的配合物对大肠杆菌有较好的杀菌活性,而对霉菌无活性;铈的配合物对所考察的菌种均无抑制作用。     

Synthesis, Catalysis of Rare Earth Complexes with Aliphatic Noncyclic Polyether-Amino Acid Schiff Base

Coordination chemistry of rare earth with Schiffbase has developed rapidly in the last fewyears ,butthe majority of the complexes studied are derivedfromaromatic Schiff base .So far less papers of rare earthcomplex with aliphatic Schiff base have been rep…     

Low-temperature NH_3-SCR of NO_x over MnCeO_x/TiO_2 catalyst:Enhanced activity and SO_2 tolerance by modifying TiO_2 with Al_2O_3

A series of TiO_2-Al_2 O_3 composites with Al/Ti molar ratios of 0.1,0.2,and 0.4 were synthesized by a coprecipitation method and used as supports to prepare supported MnCeO_x catalysts by an impregnation method.The physico-chemical properties of the samples were extensively characterized by N2 physisorption,X-ray diffraction,Raman spectroscopy,scanning electron micro scopy and energy-dispersive Xray spectroscopy element mapping,X-ray photoelectron spectroscopy,H_2-temperature programmed reduction,ammonia temperature programmed desorption,and in-situ diffuse reflectance infrared Fourier transform spectroscopy.The catalytic activity and resistance to water vapor and SO_2 of the asprepared catalysts for the SCR of NO_x with NH3 were evaluated at 50-250℃ and GHSV of 80000 mL/(g_(cat)·h).The results reveal that MnCeO_x/TiO_2-Al_2 O_3 exhibits higher activity and better SO2 tolerance than MnCeO_x/TiO_2.Combining with the characterization results,the enhanced activity and SO2 tolerance of MnCeO_x/TiO_2-Al_2 O_3 can be mainly attributed to higher relative concentrations of Mn~(4+)and chemisorbed oxygen species,stronger reducibility,and larger adsorption capacity for NH3 and NO,which originate from the larger specific surface area and pore volume,higher dispersion of Mn and Ce species compared with MnCeO_x/TiO_2.Moreover,in situ DRIFTS was used to investigate the reaction mechanism,and the results indicate that the NH3-SCR reaction over MnCeO_x/TiO_2 and MnCeO_x/TiO_2-Al_2 O_3 takes place by both the E-R and L-H mechanisms.     

稀土与VB6-Gly Schiff碱配合物的合成及表征

在氩气保护下 ,于无水甲醇溶液中合成了六种稀土与 VB6 - Gly(L ) Schiff碱配合物。元素分析和电导测量等确定其组成为 [L n L Cl2 · 3H2 O](L n=L a,Y,Sm ,Dy,Gd,Yb)。并以元素分析、摩尔电导、红外光谱、紫外光谱和氢质子核磁共振谱给予确证     

Preparation and luminescent properties of CaF2:Ln3+ (Ln:Er,Er/Yb)/Nafion composite films

In this work, CaF_2:Ln~(3+)(Ln:Er,Er/Yb)/Nafion composite films were prepared using Nafion as modifications and matrices by dripping method. The composite films were characterized by Fourier transform infrared spectroscopy(FT-IR), X-ray diffraction(XRD) and scanning electron microscopy(SEM). Composite films are transparent and CaF_2:Ln~(3+)(Ln:Er,Er/Yb) nanoparticles are well dispersed in Nafion films.The thicknesses of CaF_2:Er~(3+)/Nafion and CaF_2:Er~(3+),Yb~(3+)/Nafion composite film are about 77 and 73 μm,respectively. The nanoparticles in composite film possess cubic phase. CaF_2:Er~(3+),Yb~(3+)/Nafion composite film has stronger characteristic emission of Er~(3+) around 1530 nm with full width at half-maximum(FWHM) of 73 nm and longer luminescence lifetimes of 22.04 μs(25.03%) and 100.77 μs(74.97%).     

Influence of La and RE on the Underside Shrinkage of ZA27 Alloy

Ｗｉｔｈｌｏｗｅｒｃｏｓｔ,ｇｏｏｄｆｏｕｎｄｒｙｃｈａｒａｃｔｅｒｉｓｔｉｃｓａｎｄｍｅｃｈａｎｉｃａｌｐｒｏｐｅｒｔｉｅｓ,ＺＡ２７ａｌｏｙｈａｓａｃｈｉｅｖｅｄｃｏｎｓｉｄｅｒａｂｌｅｓｕｃｅｓｉｎｔｈｅｎｏｎｆｅｒｏｕｓｆｏｕｎｄｒｙｉｎ...     

Synthesis, Characterization and Activity of Rare Earth Complexes with Schiff Base From 2,6-Diformylpyridine N-Oxide and 4-Amino-antipyrine

Six new rare earth complexes with Schiff base from 2,6-diformylpyridine N-oxide and 4-amino-antipyrine were synthesized. These complexes with general formula REL(NO3)3(RE = La, Pr, Eu, Tb, Er, Y) were characterized by elemental analysis, IR, UV, molar conductance measurements and antimicrobial activity.     

Synthesis Crystal Structureof Quaternary Mixed AnionComplex of Lanthanides[Ln(CCl_3COO)_2 (CH_3COO)(phen) (H_2O)]_2

Synthesis Crystal Structureof Quaternary Mixed AnionComplex of Lanthanides[Ln(CCl_3COO)_2 (CH_3COO)(phen) (H_2O)]_2