Crystal Structure and Spectra of the Complex Eu(p-ClC_6H_4COO)_3C_(12)H_8N_2

ＣｒｙｓｔａｌＳｔｒｕｃｔｕｒｅａｎｄＳｐｅｃｔｒａｏｆｔｈｅＣｏｍｐｌｅｘＥｕ（ｐ－ＣｌＣ_６Ｈ_４ＣＯＯ）_３Ｃ_（１２）Ｈ_８Ｎ_２ＪｉｎＬｉｎｐｅｉ（金林培）（ＤｅｐａｒｔｍｅｎｔｏｆＣｈｅｍｉｓｔｒｙ，ＢｅｉｊｉｎｇＮｏｒｍａｌＵｎｉｖｅｒｓｉｔ...     

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     

Luminescence of Eu(MBA)_2NO_3Phen Complexes

ＬｕｍｉｎｅｓｃｅｎｃｅｏｆＥｕ（ＭＢＡ）_２ＮＯ_３ＰｈｅｎＣｏｍｐｌｅｘｅｓＪｉｎＬｉｎ－ｐｅｉ（金林培）；ＴｏｎｇＪｉｎ－Ｑｉａｎｇ（童金强）；ＷａｎｇＭｉｎｇ－Ｚｈａｏ（王明昭）；（ＤｅｐａｒｔｍｅｎｔｏｆＣｈｅｍｉｓｔｒｙ，ＢｅｉｊｉｎｇＮｏ...     

Crystal Structure and Luminescence of 1,10-Phenanthroline-tris (4-methoxybenzoato)Europium

ＣｒｙｓｔａｌＳｔｒｕｃｔｕｒｅａｎｄＬｕｍｉｎｅｓｃｅｎｃｅｏｆ１，１０Ｐｈｅｎａｎｔｈｒｏｌｉｎｅｔｒｉｓ（４ｍｅｔｈｏｘｙｂｅｎｚｏａｔｏ）ＥｕｒｏｐｉｕｍＷａｎｇＲｕｉｆｅｎ（王瑞芬），ＬｉＬｉｎｓｈｕ（李林书）（Ｄｅｐａｒｔｍｅｎｔ...     

Exploration of Reactivity of Eu(TTA)2(phen)(MA)

The reactivity of Eu(TTA)2(phen)(MA) (HTTA=2-thenoyltrifluoroacetone, MA=maleic anhydride) was studied. A series of products were prepared by direct polymerization, suspension polymerization, and alternate suspension and solution copolymerization with the styrene. And then we reactivity of these products were studied. The complexes were investigated and characterized by X-ray Diffraction (XRD), gel permeation chromatography (GPC) and fluorescence spectrophotometer. Although high polymerization degree is not found in the exploration of reactivity, it is found that the fluorescent intensity of complexes prepared by suspension polymerization increases significantly compared with the original particles, which is five times higher than that of the pure rare earth complex.     

Synthesis and Crystal Structure of Synergistic Complex of Tris（1－Phenyl－3－Methyl－4－Trifluoroacetyl－Pyrazolone－5） Mono （TriphenylphosphineOxide） Scandium

ＳｙｎｔｈｅｓｉｓａｎｄＣｒｙｓｔａｌＳｔｒｕｃｔｕｒｅｏｆＳｙｎｅｒｇｉｓｔｉｃＣｏｍｐｌｅｘｏｆＴｒｉｓ（１－Ｐｈｅｎｙｌ－３－Ｍｅｔｈｙｌ－４－Ｔｒｉｆｌｕｏｒｏａｃｅｔｙｌ－Ｐｙｒａｚｏｌｏｎｅ－５）　Ｍｏｎｏ　（Ｔｒｉｐｈｅｎｙｌｐｈｏｓｐ...     

TTA-NA-Phen-Eu离子型配合物的合成及表征

以噻吩甲酰三氟丙酮(HTTA)、3-羟基2-萘甲酸(H2NA)和邻菲咯啉(Phen)为配体,合成了Na2[Eu(TTA)(NA)2(Phen)]新的离子型配合物,并用元素分析、红外光谱、紫外光谱对它进行了表征。     

Synthesis and Crystal Structure of (3,6-Dichloro-2-nitrophenyl)(3-nitrophenyl)methanone

Novel compounds, (3,6-dichloro-2-nitrophenyl)(3-nitrophenyl)methanone(2), (2-amino-3,6-dichloro- phenyl)(3-aminophenyl)methanone(3) and 1-[3-(2-amino-3,6-dichlorobenzoyl)phenyl]-1H-pyrrole-2,5-dione(4), were synthesized from the initial compound 2,5-dichiorobenzophenone(1) and characterized by <'1>H NMR, <'13>C NMR, IR, mass spectrum and element analysis, respectively. The single crystal of compound 2 was obtained and determined by X-ray diffraction analysis. The single crystal data illustrates that it belongs to the monoclinic system, space group P2<,1>/c with a=0.7587(4) nm, b=2.4724(4) nm, c=0.8081(3) nm, α=90°, β=112.85(2)°, y=90°, V=1.3970(9) nm<'3>, Z=4, D<,c>=1.622 g/cm<'3>, M<,r>(C<,13>H<,6>Cl<,2>N<,2>O<,5>)=341.10,/μ(Mo Kα)=0.49 mm<'-1>, F(000)=688, the final R=0.048 and wR=0.144 for 1665 observed reflections with l>2σ(Ⅰ). The title molecule forms a "T" type crystal structure and the dihedral an- gel of the two phenyl rings is 65.0(1)°.     

Crystal Structure and Specific Rotation of a Tetrakis－HistidineOcto－Aquo Di－Erbium Perchlorate Complex

ＣｒｙｓｔａｌＳｔｒｕｃｔｕｒｅａｎｄＳｐｅｃｉｆｉｃＲｏｔａｔｉｏｎｏｆａＴｅｔｒａｋｉｓ－ＨｉｓｔｉｄｉｎｅＯｃｔｏ－ＡｑｕｏＤｉ－ＥｒｂｉｕｍＰｅｒｃｈｌｏｒａｔｅＣｏｍｐｌｅｘＹａｎｇＷｅｉｃｈｕｎ（杨维春）；ＣｈｅｎＤｅｆｕ（陈德福）；Ｊｉ...     

Synthesis and Structure of Polynuclear Complex [La(bphsb)2(NO3)3]n

Ｓｏｍｅｌａｎｔｈａｎｉｄｅｃｏｍｐｌｅｘｅｓｗｉｔｈｄｉｓｕｌｆｏｘｉｄｅｓｈａｖｅｂｅｅｎｓｔｕｄｉｅｄ［１，２］．Ｈｏｗｅｖｅｒ，ｒｅｌａｔｉｖｅｌｙｌｉｔｌｅｗｏｒｋｈａｓｂｅｅｎｄｏｎｅｏｎｃｒｙｓｔａｌｓｔｒｕｃｔｕｒｅｏｆｔｈｅｓｅｃｏ...     

Eu(TTA)2(phen)(UAH)/SiR Fluorescence Materials Prepared by In-Situ Reaction Method

Eu(TTA)2(phen)(UAH) (UAH=undecylenic acid)with fine fluorescent property and active group was synthesized. The measurement and characterization of complexes were also carried out. A series of composites based silicon rubber were prepared by blending silicon rubber and Eu(TTA)2(phen)(UAH) rare earth complex with active groups. Next, the effect of vulcanizing time on the property of materials was mainly studied. The results show that the dispersed particle size of rare earth complexes decreases gradually in the vulcanizing process.     

Synthesis and Crystal Structure of Europium Associate (C 34 H 54 N 2O 10 )[Eu(NO 3) 5]

Ｌａｒｉａｔｅｔｈｅｒｓａｒｅｒｅｃｏｇｎｉｚｅｄａｓｐｏｔｅｎｔｉａｌｃａｔｉｏｎｂｉｎｄｅｒｓ．Ｔｈｅｙｏｆｅｒｓｅｌｅｃｔｉｏｎａｎｄａｍｏｄｉｆｉｃａｔｉｏｎｆｏｒｔｈｅｃａｔｉｏｎｂｉｎｄｉｎｇａｂｉｌｉｔｙｏｆｔｈｅｐａｒｅｎｔｃｒ...     

Electronic Structure and Chemical Bonding of a Tetranuclear Neodymium Complex Nd_4O(OR)_4(NR''''_2)_6

The nonrelativistic DV-X_α-SCC method was used to study the electronic structure and chemi-cal bonding of tetranuclear neodymium complex Nd_4O(OR)_4(NR′_2)_6,with emphasis on the bonding charac-ter of the central μ_4-O atom and the four Nd atoms.The results of calculation show that the μ_4-O atom usesits sp~3 valence orbitals to contribute four O-Nd bonding MOs with character of multicenter bond apparent-ly.The Mulliken population analysis shows that the overlap population between Nd atoms is almost equal tozero,therefore there is no direct metal-metal bond between Nd atoms.The coordination number of Nd in thecomplex is discussed briefly.     

Influence of Blending Temperature on Fluorescence Properties of Silicone Rubber Matrix Eu(TTA)2(phen)(MA) Composites

A series of fluorescent composites were prepared by blending silicone rubber with Eu(TTA)2(phen)(MA). The influence of mechanical blending temperature on fluorescent intensity of composites and dispersion of rare earth complexes in the SiR matrix were investigated. As for the cured rubber, it is found that its fluorescent intensity is relatively low compared with that of uncured rubber. Low temperature is beneficial to dispersion of Eu(TTA)2(phen)(MA) homogeneously. When the amount of rare earth complexes is low, the fluorescent intensity of composites prepared by mechanical blending method above melting point of Eu(TTA)2(phen)(MA) is much higher than that of composites prepared below melting point.     

Syntheses and Crystal Structure of Nine-Coordinate Mononuclear Na[ EuⅢ (edta)(H2O)3] · 4H2O and Binuclear Na4[Eu2Ⅲ(Httha)2]·10H2O Complexes

The crystal and molecular structures of the Na[Eu Ⅲ (edta) ( H2 O) 3] · 4H2O ( edta = ethylenediaminetetraacetic acid) and Na4[Eu2Ⅲ (Httha)2] · 10H2 O ( ttha = triethylenetetraminehexaacetic acid) complexes were determined by single-crystal X-ray structure analyses.The crystal of Na[ EuⅢ (edta) (H2O)3] · 4H2O belongs to orthorhombic crystal system and Fdd2 space group.The crystal data are as follows: a = 1.9415 (15)nm, b = 3.544(3 )nm, c = 1.203(9)nm, V = 8.327(5)nm3, Z = 16, M = 589.27, Dc= 1.880 g· cm-3, μ= 3.108mm-1 and F(000) = 4704.The final R and wR values are 0.0312 and 0.0750 for 2091[I ＞ 2.0σ (I)] reflections, and 0.0344and 0.0766 for all 3932 unique reflections, respectively.The[EuⅢ (edta) (H2O) 3] - anion has a nine-coordinate pseudo-monocapped square antiprismatic structure in which the nine coordinate atoms, two N and seven O, are from one edta ligand and three water molecules.The crystal of Na4[Eu2Ⅲ (Httha)2] · 10H2O belongs to orthorhombic system and Pccn space group.The crystal data are as follows: a = 2.610(3)nm, b = 2.089(3)nm, c = 2.239(3)nm, V =12.208 ( 28 ) nm3, Z = 8, M = 1548.92, Dc= 1.686g·cm-3,μ = 2.115 mm-1andF(000) = 6272.Thefinal R and wR are 0.0625 and 0.1091 for 9834[I ＞ 2.0σ(I)] reflections, and 0.1608 and 0.1471 for all 37818 unique reflections, respectively.The whole complex molecule is composed of two close parts in which each one has a nine-coordinate structure with distorted monocapped square antiprismatic prism.The ttha ligand in the[Eu2Ⅲ (Httha)2] 4- anion coordinates to one Eu Ⅲ ion with three N atoms and four O atoms and to the other Eu Ⅲ ion with two O atoms.     

Synthesis and Crystal Structure of Heteronuclear Complex of Copper and Ytrium with Glycine

ＳｙｎｔｈｅｓｉｓａｎｄＣｒｙｓｔａｌＳｔｒｕｃｔｕｒｅｏｆＨｅｔｅｒｏｎｕｃｌｅａｒＣｏｍｐｌｅｘｏｆＣｏｐｐｅｒａｎｄＹｔｒｉｕｍｗｉｔｈＧｌｙｃｉｎｅＷａｎｇＲｕｉｙａｏ（王瑞瑶），ＧａｏＦｅｎｇ（高峰），ＪｉｎＴｉａｎｚｈｕ（金天柱）（...     

Synthesis of the Early Lanthanide Complexes[Li(DME)_3][MeCpLn(NPh_2)_3](Ln=La,Pr,Nd)and X-Ray Crystal Structure of La Complex

The reaction of MeCpLnCl·2LiCl·nTHF with 2 equivalent of LiNPh_2 in THF,hexane andtoluene mixture solution gives the new complex[Li(DME)_2][(η~5-MeCp)Ln(NPh_2)_3](Ln=La,Pr,Nd)byextraction with DME.They have been characterized by elemental analysis,IR and NMR.The La complexcrystallizes in the monoclinic space group P2_1/c with α=1.8335(6)nm,b=1.6576(5)nm,c=1.7461(6)nm,β=96.04°,V=5.277 nm~2,Z=4,D_c=1.26g·cm~(-3),R=0.057 and R_w=0.048(1≥2.5σ(I_o))for 3378 reflec-tions.The complex consists of a pair of a cation and an anion.La~(3+) is coordinated by onemethylcyclopentadienyl and three diphenylamidos to form six-coordinate pseudotetrahedron with the meanLn-N and La-C(ring)distances of 0.2459(8)and 0.2843(11)nm,respectively.     

Study on Luminescence Properties of a Novel Rare Earth Complex Eu（ TTA）2 （N-HPA） Phen

A novel rare earth complex Eu（TTA）2（N-HPA）Phen （TTA = thenoyltrifluoroacetone, N-HPA = N-phenylanthranilic acid, and phen = 1,10-phenathroline ）, which contains three different ligands, was synthesized. The Eu complex was blended with poly N-vinylcarbazole （PVK） in different weight ratios and spin coated into films. The luminescence properties of films were investigated and energy transfer between PVK and the complex was discussed. Multilayer structural devices consisting of ITO/PVK： Eu （TTA）2 （N-HPA） phen/BCP/Alq3/Al were fabricated with PVK ： Eu （TTA）2（N-HPA） as light-emitting layer. Increasing the concentration of Eu in the PVK thin film would inhibit the emission of PVK to different degrees. Finally, the pure red luminescence of europium（ Ⅲ ） was observed when the doping weight ratio was approximately 1 ： 5, which indicated an effective energy transfer from PVK to rare earth complex.     

Crystal Structure and Luminescence Spectra of Novel Coordination Layer of {[Eu(m-BDC)(NO3)(Phen)(H2O)]2·2CH3CH2OH}n

The crystal structure of a novel Eu3 coordination polymer, {[Eu(m-BDC)(NO3)(Phen)(H2O)]2 · 2CH3CH2OH}n (m-BDC=1,3-benzenedicarboxylate, Phen=1, 10-phenanthroline), was obtained and its high-resolution luminescence spectra at 77K were measured. The μ2-carboxylate of m-BDC constructs the binuclear building block in which each Eu3 ion is coordinated by four oxygen atoms of m-BDC anions, one oxygen atom from water molecule, two oxygen atoms of nitrate and two nitrogen atoms of Phen, respectively. The μ1-carboxylate of m-BDC conjugates the binuclear units one-dimensional chain or a ribbon, while the hydrogen bonds between ribbons assemble the structure two-dimensional layer with a thickness equaling to the width of the ribbon. The luminescence spectra reveal that the two Eu3 ion sites in the binuclear building blocks have slight environmental difference. The C1 local symmetry of Eu3 ion is concluded from both crystal structure measurement and luminescence spectra.     

Synthesis and Crystal Structure of Ytterbium Trichloride Complex with Proline

ＳｙｎｔｈｅｓｉｓａｎｄＣｒｙｓｔａｌＳｔｒｕｃｔｕｒｅｏｆＹｔｔｅｒｂｉｕｍＴｒｉｃｈｌｏｒｉｄｅＣｏｍｐｌｅｘｗｉｔｈＰｒｏｌｉｎｅＭａＡｉ－Ｚｅｎｇ（马爱增）；ＬｉＬａｉ－Ｍｉｎｇ（李来明）；ＪｉｎＳｏｎｇ－Ｃｈｕｎ（金松春）；ＬｉｎＹｏｎｇ－...