Synthesis and Structural Investigation of （LaO）_3BO_3 with Eu~（3＋） as Luminescent Probe

ＳｙｎｔｈｅｓｉｓａｎｄＳｔｒｕｃｔｕｒａｌＩｎｖｅｓｔｉｇａｔｉｏｎｏｆ（ＬａＯ）_３ＢＯ_３ｗｉｔｈＥｕ~（３＋）ａｓＬｕｍｉｎｅｓｃｅｎｔＰｒｏｂｅＰｅｎｇＹｉ＇ａｎ（彭夷安）；ＬｉＱｉｈｕａ（李其华）（ＨｕｎａｎＭｅｄｉｃａｌＣｏｌｌｅｇｅ，Ｃ?..     

Synthesis，Characterization，Crystal Structure and Quantum Chemistry Calculation of the Mixed Ligand Complexes ［Ln（CF_3COO）_3·（Phen）_2·（H_2O）_2］·CH_3COCH_3·H_2O

Ｓｙｎｔｈｅｓｉｓ，Ｃｈａｒａｃｔｅｒｉｚａｔｉｏｎ，ＣｒｙｓｔａｌＳｔｒｕｃｔｕｒｅａｎｄＱｕａｎｔｕｍＣｈｅｍｉｓｔｒｙＣａｌｃｕｌａｔｉｏｎｏｆｔｈｅＭｉｘｅｄＬｉｇａｎｄＣｏｍｐｌｅｘｅｓ［Ｌｎ（ＣＦ_３ＣＯＯ）_３·（Ｐｈｅｎ）_２·（Ｈ_２Ｏ...     

Synthesis and Crystal Structure of a Heteronuclear Complex［MnSc（DTPA）（H_2O）_2］·2H_2O

ＳｙｎｔｈｅｓｉｓａｎｄＣｒｙｓｔａｌＳｔｒｕｃｔｕｒｅｏｆａＨｅｔｅｒｏｎｕｃｌｅａｒＣｏｍｐｌｅｘ［ＭｎＳｃ（ＤＴＰＡ）（Ｈ_２Ｏ）_２］·２Ｈ_２ＯＺｈａｎｇＹｉ；ＬｉＢｉａｏｇｕｏ；ＧａｏＳｏｎｇ；ＪｉｎＴｉａｎｚｈｕ；ＸｕＧｕａｎｇｘｉａｎ（?..     

Viscosities of ternary systems Y（NO_3）_3＋La（NO_3）_3＋H_2O,La（NO_3）_3＋Ce（NO_3）_3＋H_2O,La（NO_3）_3＋Nd（NO_3）_3＋H_2O and their binary subsystems at different temperatures

Viscosities were measured for the ternary systems Y(NO3)3+La(NO3)3+H2O, La(NO3)3+Ce(NO3)3+H2O, and La(NO3)3+Nd(NO3)3+ H2O and their binary subsystems Y(NO3)3+H2O, La(NO3)3+H2O, Ce(NO3)3+H2O, and Nd(NO3)3+H2O at 293.15, 298.15 and 308.15 K. The results were used to test the applicability of simple equations for the viscosity of the mixed solutions. The predictions agreed well with measured values, implying that the viscosities of the examined electrolyte solutions could be related to those of their constituent binary solutions using these simple equations.     

单核NH_4［Nd（CH_3COO）_4（H_2O）］的制备和晶体结构

在４－甲基２－羟基喹啉存在条件下，ＮｄＣｌ＿３和ＣＨ＿３ＣＯＯＮＨ＿４在无水乙醇中反应制备了八配位单核ＮＨ＿４［Ｎｄ（ＣＨ＿３ＣＯＯ）＿４（Ｈ＿２Ｏ）］。其晶体为单斜晶系，Ｐ＿（２１／Ｃ）空间群，晶胞参数如下：ａ＝８．７７２（２），ｂ＝２０．２８５（５），ｃ＝８．１４９（３），β＝９０．２４（２）°，Ｖ＝１４４８．４（８）￣３，Ｚ＝４。     

Synthesis and Characterization of Water－Soluble Mono（tetrapyridylporphyrinato）Gadolinium（Ⅲ）［Gd（tpyp）OH·DMSO·23H_2O］

ＳｙｎｔｈｅｓｉｓａｎｄＣｈａｒａｃｔｅｒｉｚａｔｉｏｎｏｆＷａｔｅｒ－ＳｏｌｕｂｌｅＭｏｎｏ（ｔｅｔｒａｐｙｒｉｄｙｌｐｏｒｐｈｙｒｉｎａｔｏ）Ｇａｄｏｌｉｎｉｕｍ（Ⅲ）［Ｇｄ（ｔｐｙｐ）ＯＨ·ＤＭＳＯ·２３Ｈ_２Ｏ］￥ＪｉａｎｇＪｉａｎ－Ｚｈｕａ?..     

Luminescent properties of Eu~（3＋） doped Gd_2WO_6 and Gd_2（WO_4）_3 nanophosphors prepared via co-precipitation method

Eu3+ doped Gd2WO6 and Gd2(WO4)3 nanophosphors with different concentrations were prepared via a co-precipitation method. The structure and morphology of the nanocrystal samples were characterized by using X-ray diffraction (XRD) and field emission scanning electron microscopy (FE-SEM), respectively. The emission spectra and excitation spectra of samples were measured. J-O parameters and quantum efficiencies of Eu3+ 5D0 energy level were calculated, and the concentration quenching of Eu3+ luminescence in different matrixes were studied. The results indicated that effective Eu3+:5D0-7F2 red luminescence could be achieved while excited by 395 nm near-UV light and 465 nm blue light in Gd2WO6 host, which was similar to the familiar Gd2(WO4)3:Eu. Therefore, the Gd2WO6:Eu red phosphors might have a potential application for white LED.     

Luminescent properties of YVO4·xTa2O5:Eu3+

The samples of YVO₄·xTa₂O₅:Eu³⁺ (x=0.45,0.35,0.25,0.15,0.05)were synthesized by the conventional solid state reaction. The structure of the prepared sample was checked by the X-ray diffraction. XRD measurements at room temperature were confirmed that the prepared YVO₄·xTa₂O₅:Eu³⁺ consisted of two phases. One phase was YVO₄, which is tetragonal according with the JCPDS-Card (17-0341); the other phase was YTaO₄, which is according with the JCPDS-Card (72-2018). The spectrum property of the sample was studied under the VUV. The effects of Ta doped on the luminescent properties of sample were investigated and it was found that some Ta doped could highlight the absorption of matrix in VUV region. The emission spectrum was dominated by the red peaks at 613 and 619 nm due to the electric dipole transition ⁵D₀→⁷F₂ of Eu³⁺. It indicated that Eu³⁺ occupied a site lacking inversion symmetry. There was one band peaked at 155 nm in the excitation spectrum of the sample, it could be assigned to the absorption of the host.     

Crystal Structure and Luminescence Spectra of Ternary Europium（Ⅲ） Complex［Eu（DBM）_3（2，2＇－BIPY）］（HDBM）

ＣｒｙｓｔａｌＳｔｒｕｃｔｕｒｅａｎｄＬｕｍｉｎｅｓｃｅｎｃｅＳｐｅｃｔｒａｏｆＴｅｒｎａｒｙＥｕｒｏｐｉｕｍ（Ⅲ）Ｃｏｍｐｌｅｘ［Ｅｕ（ＤＢＭ）_３（２，２＇－ＢＩＰＹ）］（ＨＤＢＭ）￥ＷａｎｇＭｉｎｇ－Ｚｈａｏ；ＪｉｎＬｉｎ－Ｐｅｉ（Ｄｅｐａｒｔ?..     

Synthesis,Characterization and Crystal Structure of Ln(CCl_3COO)_3·(phen)_2·2H_2O

Coordination compounds of lanthanide trichloroacetates with 1,10-phenanthroline weresynthesized and characterized as Ln(CCl_3COO)_3·(phen)_2·2H_2O(phen=1,10-phenanthroline,Ln=Tb～Lu)by chemical analysis,IR spectra,thermal analysis and crystal X-ray structural analysis.The crystal ofEr(CCl_3COO)_3·(phen)_2·2H_2O belongs to monoclinic system,with space group P2_1/c,a=1.6969(6)nm,b=1.3776(5)nm,c=1.7563(9)nm,β=114.79(9)°,V=3.727(1)nm~3,Z=4.     

Synthesis，Characterization and Crystal Structure of Cyclotetramer of Europium（Ⅱ）－arene Complex：［Eu（C_6Me_6）（AlCl_4）_2l_4·Me_4C_6H_2

Ｓｙｎｔｈｅｓｉｓ，ＣｈａｒａｃｔｅｒｉｚａｔｉｏｎａｎｄＣｒｙｓｔａｌＳｔｒｕｃｔｕｒｅｏｆＣｙｃｌｏｔｅｔｒａｍｅｒｏｆＥｕｒｏｐｉｕｍ（Ⅱ）－ａｒｅｎｅＣｏｍｐｌｅｘ：［Ｅｕ（Ｃ_６Ｍｅ_６）（ＡｌＣｌ_４）_２ｌ_４·Ｍｅ_４Ｃ_６Ｈ_２ＬｉａｎｇＨ...     

Studies on Coordinations Reaction between Eu（NO_3）_3·3H_2O and Crown Ether 18C6 In Anhydrous Acetonitrile

ＳｔｕｄｉｅｓｏｎＣｏｏｒｄｉｎａｔｉｏｎｓＲｅａｃｔｉｏｎｂｅｔｗｅｅｎＥｕ（ＮＯ_３）_３·３Ｈ_２ＯａｎｄＣｒｏｗｎＥｔｈｅｒ１８Ｃ６ｉｎＡｎｈｙｄｒｏｕｓＡｃｅｔｏｎｉｔｒｉｌｅＬｉｕＳｈｉｃｈａｎｇ；ＺｈａｎｇＱｉａｎｇ（Ｄｅｐａｒｔｍｅｎｔ?..     

Luminescence Properties and Site Substitution of Eu~（3＋）and Bi~（3＋） in Me_2Y_8（SiO_4）_6O_2

ＬｕｍｉｎｅｓｃｅｎｃｅＰｒｏｐｅｒｔｉｅｓａｎｄＳｉｔｅＳｕｂｓｔｉｔｕｔｉｏｎｏｆＥｕ~（３＋）ａｎｄＢｉ~（３＋）ｉｎＭｅ_２Ｙ_８（ＳｉＯ_４）_６Ｏ_２ＬｉｎＪｕｎ（林君）；ＬｉＢｉｎ（李彬）（ＩｎｓｔｉｔｕｔｅｏｆＭａｔｅｒｉａｌｓＳｃｉｅｎｃ?..     

Photophysical Property of Ternary Complex Eu(DPHA)_3·Phen·2H_2O

2 Ｈｙｄｒｏｘｙｄｉｐｈｅｎｙｌａｃｅｔｉｃａｃｉｄ (ＨＤ ＰＨＡ) ,ａｇｏｏｄｐｌａｎｔｇｒｏｗｔｈｒｅｇｕｌａｔｏｒ ,ｃａｎｆｏｒｍｓｔａｂｌｅａｑｕｅｏｕｓｂｉｎａｒｙｃｏｍｐｌｅｘｅｓｗｉｔｈｒａｒｅｅａｒｔｈｓ .ＴｏｉｎｔｒｏｄｕｃｅＰｈｅｎ ( 1 ,1 0 Ｐｈｅｎａｎｔｈｒｏ ｌｉｎｅ) ,ｔｈｅｎｉｃｅｌｉｇａｎｄｔｏｒａｒｅｅａｒｔｈｓ ,ｉｎｔｏｔｈｅｓｙｓｔｅｍ ,ａｔｅｒｎａｒｙｃｏｍｐｌｅｘＥｕ(ＤＰＨＡ) 3·Ｐｈｅｎ·2Ｈ2 Ｏｗａｓｓｙｎｔｈｅｓｉｚｅｄａｎｄｉｔｓｐｈｏｔｏｐｈｙｓｉｃ…     

配合物[Dy(C_7H_5O_3)_2(C_4H_6NO_2S)]·2H_2O的热化学研究

合成了镝和硫代脯氨酸、水杨酸的三元固体配合物,通过元素分析、热重分析、红外光谱、摩尔电导等手段进行表征,确定其化学组成为[Dy(C7H5O3)2(C4H6NO2S)].2H2O。根据盖斯定律设计一个热化学循环,用恒温环境溶解-反应量热法研究得到配合反应的标准反应焓为261.290.87 kJ.mol-1,进而算出配合物298.15K时的标准摩尔生成焓为-27803 kJ.mol-1。     

Polynuclear Lanthanoid Complexes Containing Aluminium—The Structure of[HoAl(CF_3COO)_2(CF_3CHOO)(C_2H_5)_2(C_4H_8O)_2]_2 at 233K

[HoAl(CF_3COO)_2(CF_3CHOO)(C_2H_5)_2(C_4H_8O)_2]_2,Mr=1468.7,monoclinic,P 2_1/n,a=1.0084(4),b=1.8453(6),c=1.4501(6)nm,β=102.40(3)°,V=2.6355(1)nm~3,Z=2,D_c=1.81gcm~(-3),F(000)=1511,T=233K,Mo Kα radiation(λ=0.071069nm).R=0.052 for 6176 unique reflections[Ⅰ≥36(Ⅰ)].The structuralunits consist of dimeric molecules with the mixed ligand and central bimetallic atoms,which are polynuclearlanthanoid complexes containing aluminium.Ho-Ho'distance is 0.3619(1)nm.The coordination polyhedron ofHo can be described in terms of a distored bicap-prism.     

Reaction of (C_5H_5)_2NdCl·2LiCl with n-Butyllithium: Formation and Crystal Structure of [Li(DME)_3][(C_5H_5)_3Nd(μ-H)Nd(C_5H_5)_3]

Reaction of (C_5H_5)_2NdCl·2LiCl with n-Butyllithium: Formation and Crystal Structure of [Li(DME)_3][(C_5H_5)_3Nd(μ-H)Nd(C_5H_5)_3]     

配位聚合物{[Nd_2(C_2O_4)_3(H_2O)_6]·3CH_3OH}_n的合成及晶体结构

采用水热法合成了稀土配位聚合物{[Nd2(C2O4)3(H2O)6].3CH3OH}n(1),得到该配合物的粉红色块状晶体,并对其进行了元素分析。用单晶x射线衍射法测得其晶体结构,属单斜晶系,空间群为P21/c,晶胞参数为:a=1.1200(2)nm,b=0.96325(17)nm,c=1.02580(18)nm,α=90°,β=114.278(3)°,γ=90°,Z=4,V=1.0088(3)nm3。配合物中钕离子为九配位,与配体结合生成蜂窝状二维层,通过氢键的连接形成了三维超分子配合物。     

Syntheses and Structures of Two Heteronuclear Complexes with Glycine {[CuEr(Gly)_5(H_2O)_2](ClO_4)_5·H_2O}_n and {[Cu_2Gd_2(Gly)_10 (H_2O)_4](ClO_4)_10·4H_2O}_n

Ｉｎｔｈｅｐａｓｔｆｅｗｙｅａｒｓ ,ｔｈｅｍａｇｎｅｔｉｃｐｒｏｐ ｅｒｔｉｅｓｏｆｃｏｍｐｌｅｘｅｓｃｏｍｐｒｉｓｉｎｇｌａｎｔｈａｎｉｄｅａｎｄｔｒａｎｓｉｔｉｏｎｍｅｔａｌｉｏｎｓｈａｖｅａｔｔｒａｃｔｅｄｉｎｃｒｅａｓｉｎｇｉｎｔｅｒｅｓｔ[1～ 6 ] .Ｔｈｅｓｅｃｏｍｐｌｅｘｅｓａｒｅｉｍｐｏｒｔａｎｔｉｎｔｈｅｓｔｕｄｉｅｓｏｆｍａｇｎｅｔｉｃｅｘｃｈａｎｇｅｉｎｔｅｒａｃｔｉｏｎｂｅｔｗｅｅｎｌａｎｔｈａｎｉｄｅａｎｄｄ ｔｒａｎｓｉｔｉｏｎｍｅｔａｌｉｏｎｓ,ａｎｄｔｈｅｙｃａｎｐｒｏ…     

Single-phase full-color Ba_3Lu_2（SiO_4）_3：Eu~（2＋） phosphor for white-light emitting diodes

we developed a new silicate-based full-color phosphor Ba3Lu2(SiO4)3:Eu2+ through solid state reaction.The host crystal structure was isostructural with Ca3Y2(SiO4)3 instead of garnet-type.The phosphor absorbed near-ultraviolet light from 250 to 400 nm,which was very suitable for a color converter of white LED that used UV-LED as the primary light source.The photoluminescence peak wavelength of Ba3Lu2(SiO4)3:Eu2+ was about 461 nm and a shoulder peak was around 522 nm,which resulted from the 5d-4f transition ...