Crystal Structure and Electrochemical, Fluorescent and Magnetic Properties of a New Complex [Ag(2,2ˊ-bipy)(C_(14)H_9O_3)]·(C_(14)H_(10)O_3)

A novel silver（I） complex [Ag（2,2ˊ-bipy）（C14H9O3）]·（C14H10O3） has been synthesized with 2-benzoylbenzoic acid as the ligand. Crystal data for the title complex： monoclinic, space group Cc, a = 27.4089（13）, b = 10.2897（5）, c = 12.0024（6）A, β = 111.864（4）°, Mr = 715.49, V = 3141.5（3） A3, Dc = 1.513 g/cm^3, Z = 4, μ（Mo Kα） = 0.694 mm^-1, F（000） = 1456, the final R = 0.0473 and w R = 0.1146. In the title complex, the central Ag（I） ion is located in a triangular coordination environment. The electron transfer is quasi-reversible in the electrode reaction and it shows a strong emission peak in the range of 495-520 nm under 502 nm excitation. In addition, it displays diamagnetic property from 3 to 300 K.

Crystal Structure,Electrochemical and Fluorescent Properties of a New Cadmium(II) Complex[Cd(C_(12)H_6O_4N_2)(Phen)_2(H_2O)]·3H_2O

A new Cd（II） complex [Cd（C12H6OaN2）（Phen）ffH2O）]＇3H2O with 2,2＂-bipyridine- 3,3＂-dicarboxylic acid as a ligand has been synthesized. Crystal data for the title complex are as follows： monoclinic, space group P2dn, a = 12.8458（5）, b = 17.9131（7）, c = 15.2960（6） A, β = 111.7430（10）°, V = 3269.3（2） A3, Dc = 1.581 g/cm3, Z = 4,/a（MoKa） = 0.731 mm-1, F（000） = 1580, the R = 0.0244 and wR = 0.0605. In the title complex, the central Cd（ll） ion is located in a distorted octahedral coordination environment. The electrochemical and fluorescent properties of the title complex were studied. The results show that the electron transfer of the title complex is irreversible in the electrode reaction and it has a broad emission peak in the range of 470-508 nm with the excitation wavelength of 488 nm.

Crystal Structure and Magnetic and Fluorescent Properties of a New Copper(Ⅱ) Complex Cu_2(L)_4(2,2'-bipy)_2(H_2O)_2

A new copper（II） complex Cu2（L）a（2,2＇-bipy）2（H2O）2 （1） has been synthesized with 2-benzoylbenzoic acid （HL） and 2,2＇-bipyridin as ligands. The crystal belongs to a monoclinic system with space group Cc, a = 13.9979（II）, b = 15.9888（13）, c = 30.306（3） A, β = 100.8700（10）°, V= 6661.1（10） A3, Dc= 1.372 g/cm3, Z = 8, F（000） = 2840, the final GOOF = 1.018, R= 0.0685, and wR= 0.1731. There are two mononuclear Cu（L）2（2,2＇-bipy）（H20） units in the crystal of 1. Each Cu（II） cation is coordinated by five atoms. The magnetic and fluorescent properties of 1 were studied. The results show that 1 exhibits weak paramagnetism, and when the excitation wavelength is at 616 nm, it has an intense fluorescent emission band around 482 nm.

Hydrothermal Syntheses and Crystal Structures of Two Complexes with 3,5-Dinitrosalicylate and 2,2′-Bipyridine Ligands

The two title complexes, [Cd{3,5-（NO2）2sal}（2,2′-bipy）]n 1 and [Mn{3,5- （NO2）2sal}（2,2′-bipy）]n 2 （3,5-（NO2）2sal = 3,5-dinitrosalicylate, 2,2＇-bipy = 2,2′-bipyridine）, were synthesized by the hydrothermal reaction and structurally characterized. Complex 1 crystallizes in triclinic, space group P1, a = 5.581（4）, b = 12.071（8）, c = 12.88（1）A, α= 92.10（3）,β= 96.73（3）, γ = 102.02（2）°, C17H10N407Cd, Mr = 494.69, V= 841（1）A3, Z = 2, Dc = 1.954 g/cm3, F（000） = 488, μ= 1.353 mm^-1, R = 0.0248 and wR = 0.0761. Complex 2 crystallizes in monoclinic with space group P21/c, a = 8.604（3）, b = 23.88（1）, c = 8.894（3） A, β = 102.45（1）°, C17H10N407Mn, Mr = 437.23, V= 1785（1） A3, Z=.4, Dc = 1.627 g/cm3, F（000） = 884, μ = 0.791 mm^-1, R = 0.0471 and wR = 0.1250. Complex 1 possesses an infinite 1D polymeric chain structure consisting of the repeated basic four-membered ring units （Cd2O2） and eight-membered ring units （CdOCO）2. Compound 2displays a linear 1D chain through Mn（Ⅱ） atoms and bridging carboxylate groups of 3,5-dinitrosalicylic acid ligands with the Mn…Mn separation of 4.472（2）A. The fluorescence properties and cyclic voltammetric behaviors of the complexes are also reported.

Synthesis and the Fluorescent, Magnetic and Thermal Stability Properties of a New Terbium（Ⅲ） Complex Tb(C20H14O3N)3(C12H8N2)（H2O）·H2O

A new terbium(Ⅲ complex Tb(C20H14O3N)3(C12H8N2)（H2O）·H2O has been synthesized with 2-diphenylanine carbonyl benzoic acid and 1,10-phenanthroline as ligands. Crystal data for the complex are as follows: triclinic, space group P1, a =11.6034（6）, b = 16.2465（8）, c = 16.4427（8） ?, α = 73.168（5）o, β = 88.655（4）o, γ = 82.865（4）o, V = 2943.7（3） ?3, Dc = 1.494 g/cm3, Z = 2, μ（MoK α） = 1.272 mm-1, F（000） = 1348, the final R = 0.0535 and w R = 0.0809. The Tb（Ⅲ） ion is coordinated by nine atoms to give a monocapped square antiprism coordination geometry. The complex shows four fluorescence emission bands arising from the transitions of Tb3+: 5D4 → 7F6（491 nm）, 5D4 → 7F5（546 nm）, 5D4 → 7F4（585 nm） and 5D4→7F3（621 nm）. Also reported are the magnetic and thermal stability properties of the complex.

Synthesis and Fluorescent and Magnetic Properties of a New Europium Complex Eu(C_(20)H_(14)O_(3)N)_(3)(2,2’-bipy)(H_(2)O)·H_(2)O

A new europium(Ⅲ)complex Eu(C_(20)H_(14)O_(3)N)_(3)(2,2'-bipy)(H2O)·H2O has been synthesized with2-diphenylanine carbonyl benzoic acid and 2,2'-bipyridine as ligands.Crystal data for the complex are as follows:triclinic,space group Pi,a=11.3334(5),b=16.0883(7),c=17.0116(8)A,α=70.411(4)o,β=82.435(4)o,γ=85.095(4)o,V=2894.0(2)A^(3),Dc=1.484 g/cm^(3),Z=2,μ=1.15 mm^(-1),F(000)=1320 and the final R=0.0447 and w R=0.0578.The Eu(Ⅲ)ion is coordinated by nine atoms to give a monocapped square antiprism coordination geometry.The complex shows two intense fluorescence emission bands arising from the transitions of Eu^(3+):^(5)D0→^(7)F_(1)(592 nm)and ^(5)D_(0)→^(7)F_(2)(616 nm),respectively.Also reported is the magnetic property of the complex.The complex exhibits antiferromagnetism in the temperature range of 300~2 K.

Synthesis,Fluorescence and Magnetic Properties of a New Europium(Ⅲ)Complex Eu(C14H9O3)2(C12H8N2)2(NO3)

A new europium(III)complex Eu(CHO)(CHN)(NO)has been synthesized with 2-benzoylbenzoic acid and 1,10-phenanthroline as ligands.Crystal data for the complex are as follows:monoclinic,space group P2/c,a=9.6733(6),b=22.9521(14),c=19.7701(12)?,β=94.9800(10)o,V=4372.8(5)?~3,D=1.557 g/cm~3,Z=4,μ(Mo Kα)=1.501 mm,F(000)=2064,the final R=0.0214 and w R=0.0510.The Eu(III)ion is coordinated by ten atoms to give a bicapped square antiprism coordination geometry.The complex shows two intense fluorescence emission bands arising from the transitions of Eu:~5D→~7F(594 nm)and ~5D→~7F(618 nm).In addition,its XT decreases from 1.29767 cm~3?mol?K at 300 K to 0.01531 cm~3?mol?K at 2 K.

Synthesis,Fluorescence and Magnetic Properties of a New Europium(Ⅲ) Complex Eu(L)3(Phen)2

A new europium（III） complex Eu（L）3（Phen）2（1） with 2-benzoylbenzoic acid（HL） and 1,10-phenanthroline（Phen） as ligands has been synthesized. Crystal data for the complex are as follows： monoclinic, space group P21/c, a = 2.2577（4）, b = 1.23484（19）, c = 1.8789（3） nm, β = 94.918（3）o, V = 5.2189（14） nm^3, Dc = 1.512 g/cm^3, Z = 4, μ（Mo Kα） = 1.269 mm^-1, F（000） = 2408, the final R = 0.0433 and w R = 0.1038. The Eu（III） ion is coordinated by nine atoms to give a single-capped square antiprism coordination geometry. 1 shows two intense fluorescence emission bands arising from the transitions of Eu^3＋： ^5D0→^7F1（597 nm） and ^5D0→^7F2（615 nm） with an excitation wavelength of 396 nm. In addition, 1 displays antiferromagnetic property at low temperature.

Synthesis and Fluorescent, Magnetic and Thermal Stability Properties of a New Europium（Ⅲ） Complex Eu2(C15H11O3)6(C12H8N2)2

A new europium（Ⅲ） complex Eu2(C15H11O3)6(C12H8N2)2 has been synthesized with 2-（4-Methylbenzoyl）benzoic acid and 1,10-phenanthroline as ligands. Crystal data for the complex are as follows: monoclinic, space group P21/n, a = 15.1238（5）, b = 13.5928（4）, c = 22.9840（7） ?, β = 104.132（3）o, V = 4582.0（2） ?3, Dc = 1.522 g/cm3, Z = 4, μ（Mo Kα） = 1.433 mm-1, F（000） = 2128, the final R = 0.0447 and wR = 0.0826. The Eu（Ⅲ） ion is coordinated by eight atoms to give a distorted square antiprism coordination geometry. The complex shows two intense fluorescence emission bands arising from the transitions of Eu3+: 5 D0 → 7 F1（594 nm） and 5 D0 → 7 F2（617 nm）. The complex is an antiferromagnetism system in the range of 150～300 K. Also reported in the paper is the thermal stability property of the title complex.

Synthesis, Crystal Structures and Properties of Two Novel Co（Ⅱ） and Cd（Ⅱ） Complexes of N-AcetyI-L-glutamic Acid and Imidazole Ligands

Two novel complexes {[Co（A-glu）（Im）2]·0.5H2O}n （1） and [Cd（A-glu）（Im）3]n （2） （H2A-glu=N-acetyl-L-glutamic acid, Im=imidazole） have been synthesized from the reaction of H2A-glu with Co（CH3COO）2·4H2O or Cd（CH3COO）2·2H2O in the presence of Im. Both of the complexes display different coordination environment and similar one-dimensional chain structure. The magnetic susceptibility measurements for 1 show a weak antiferromagnetic interaction between two cobalt（Ⅱ） ions bridged by A-glu ligand. The complex 2 exhibits an intense fluorescent emission in solid state at room temperature.

Synthesis, Structure and Properties of a New Terbium(Ⅲ) Complex Tb2(C15H11O3)6(2,2'-bipy)2

A new terbium(Ⅲ)complex Tb2(C15H11O3)6(2,2?-bipy)2 has been synthesized with 2-(4-methylbenzoyl)benzoic acid and 2,2?-bipy ligands.Crystal data for the complex:monoclinic,space group P21/n,a=14.9738(5),b=13.5469(4),c=23.0683(7)?,β=103.950(3)o,V=4541.4(3)?3,Dc=1.511 g/cm3,Z=2,μ(MoKα)=1.620 mm-1,F(000)=2088,the final R=0.0318 and wR=0.0727.The Tb(Ⅲ)ion is coordinated by eight atoms to give a distorted square antiprism coordination geometry.The complex shows three fluorescence emission bands arising from the transitions of Tb3+:5D4→7F6(490 nm),5D4→7F5(545 nm)and 5D4→7F4(584 nm).The complex exhibits antiferromagnetism in the temperature range of 300~2 K.Also reported are the thermal stability properties of the complex.

Synthesis, Structure and Properties of a New Terbium(Ⅲ) Complex Tb2(C15H11O3)6(phen)2

A new terbium(Ⅲ) complex Tb2(C15H11O3)6(phen)2 has been synthesized with 2-(4-methylbenzoyl)benzoic acid and 1,10-phenanthroline as ligands.Crystal data for the complex are as follows:monoclinic,space group P21/n,a=15.0786(6),b=13.5762(5),c=22.9683(9) A,β=104.130(4)°,V=4559.6(3) A3,Dc=1.540g/cm3,Z=2,μ(MoKα)=1.615 mm-1,F(000)=2136,the final R=0.0528 and wR=0.0740.The Tb(Ⅲ) ion is coordinated by eight atoms to give a distorted square antiprism coordination geometry.The complex shows four fluorescence emission bands arising from the transitions of Tb3+5D4→7F6(490 nm),5D4→7F5(546 nm),5D4→7F4(588 nm) and 5D4→7F3(622 nm).The complex is an antiferromagnet in the range of 300~2 K.Also reported in the paper is the thermal stability property of the title complex.

Synthesis and Properties of Dinuclear Europium(Ⅲ)Complex Containing 2-Benzoylbenzoic Acid

A new europium(Ⅲ)complex[Eu2(C_(14)H_(9)O_(3))_(6)(2,2'-bipy)2]·(2,2'-bipy)_(2)has been synthesized with 2-benzoylbenzoic acid and 2,2'-bipyridine as ligands.Crystal data:triclinic,space group P1,with a=13.5251(5),b=13.9453(5),c=15.3582(5)Å,α=76.922(3)º,β=79.740(3)º,γ=64.248(4)º,V=2530.83(18)Å3,Dc=1.496 g/cm3,Z=1,μ(MoKα)=1.305 mm-1,F(000)=1156,the final R=0.0340 and wR=0.0638.The Eu(Ⅲ)ion is coordinated by eight atoms to give a distorted square antiprism coordination geometry.The complex exhibits antiferromagnetism in the temperature range of 300~2 K,and two intense fluorescence emission bands arising from the transitions of Eu^(3+):^(5)D_(0)→^(7)F_(1)(595 nm)and^(5)D_(0)→^(7)F_(2)(618 nm),respectively.In addition,the fluorescence sensing properties of the complex in CrO_(4)^(2-)solution were studied.

手性二茂铁基氨基酸配合物(S)-[Zn(FcCH_2NHCH(CH_2Ph)COO)_2·H_2O](H_2O)的合成及性能

以(S)-N-二茂铁甲基苯丙氨酸钠为配体,与Zn(Ac)2反应合成了一个新型手性单核配合物(S)-[Zn(FcCH2NHCH(CH2Ph)COO)2·H2O]·H2O。X-射线单晶结构分析表明,中心离子Zn!与2个FcCH2NHCH(CH2Ph)COO-和1个水分子配位,形成树状的骨架构型。该配合物晶体属正交晶系,P212121空间群。晶胞参数为:a=0.8934(2)nm;b=1.6698(4)nm;c=2.5884(6)nm。电化学测试表明该配合物的氧化和还原峰电位同配体相比向高电位方向移动。室温下,标题化合物呈现出较强的固体双重荧光性能,量子化学计算给出了初步的解释。

2,2′-联吡啶-3,3′-二羧酸锰(Ⅱ)配合物的合成、晶体结构及性能研究(英文)

以2,2′-联吡啶-3,3′-二羧酸(H2L)和1,10-邻菲啰啉(Phen)为配体合成了一个新的锰(Ⅱ)配合物[Mn(H2O)(L)(Phen)2].(H2O)3。该配合物晶体属单斜晶系,空间群P21/c。在配合物中,中心锰(Ⅱ)离子的配位数是6,处于变形的八面体配位环境中。还测定了标题配合物的磁性,荧光和电化学性能,结果表明:在低温下,配合物有反铁磁性;当激发波长为656 nm时,配合物在682 nm附近有一个宽的荧光发射峰;在循环伏安过程中配合物的电子转移是准可逆的,对应的电极反应是Mn髥/Mn(Ⅱ)。

两个基于β-二酮席夫碱配体构筑的银配合物的合成、晶体结构和荧光性质（英文）

在常温的条件下,分别将2个双β-二酮席夫碱配体与银盐进行配位反应得到2个银配合物,{[Ag(L1)](Sb F6)}n(1)和[Ag2(L2)2](BF4)2(2)(L1=1,3-bis(4-methylamino-pentan-2-one)phenyl,L2=1,3-bis(3-methylamino-1-phenyl-butan-1-one)phenyl),并通过元素分析、红外光谱、粉末X射线衍射分析、单晶X射线衍射等对其结构进行了表征。结构分析表明,在配合物1中,银离子与配体L1中的2个碳原子和2个氧原子配位,形成一维链状结构,而配合物2中银离子与L2配体中的2个氧原子和2个碳原子配位,最终得到双核二聚体结构。化合物1和2都通过阴离子与结构单元之间的C-H…F作用,最终形成三维超分子结构。此外,我们还研究了化合物1、2以及配体的荧光性质。

2-苯甲酰苯甲酸铜配合物的合成、电化学、荧光及磁性研究(英文)

以2-苯甲酰苯甲酸(HL)和1,10-邻菲啰啉(Phen)为配体合成了一个新的铜(Ⅱ)配合物{[Cu2(Phen)4(NO3)][Cu(Phen)2(L)]2(L)2(NO3)3}·2H2O(1)。该化合物晶体属三斜晶系,空间群P1,晶胞参数:a=1.138 57(5)nm,b=1.193 49(7)nm,c=2.615 31(13)nm,α=89.428 0(10)°,β=82.753(2)°,γ=74.537 0(10)°,V=3.3968(3)nm3,Dc=1.408 g·cm-3,Z=1,μ(Mo Kα)=0.700 mm-1,F(000)=1 480,最终偏离因子R1=0.057 1,wR2=0.133 4。在标题配合物分子中,有2个单核阳离子[Cu(Phen)2(L)]+和1个双核阳离子[Cu2(Phen)4(NO3)]3+,中心铜(Ⅱ)离子的配位数都是五。测定了标题配合物的电化学、荧光和磁性。结果表明:在循环伏安过程中,配合物的电子转移是准可逆的,对应的电极反应是Cu(Ⅱ)/Cu(Ⅰ);当激发波长为488 nm时,配合物在494 nm附近有较强的荧光发射峰;在300～52 K,配合物具有抗磁性。

三足七齿Schiff碱铈(Ⅲ)双核配合物的晶体结构和性质研究

制备了Schiff碱型三足体配体H3Brapi,通过溶剂热方法合成了Ce(Ⅲ)的双核配合物[Ce(Brapi)]2·2DMF,利用元素分析、红外光谱、紫外光谱和荧光光谱等进行了表征,并用X-射线单晶衍射测定了其晶体结构,结果表明,配合物晶体属单斜晶系,P21/n空间群,a=1.1667(3)nm,b=1.34829(3)nm,c=2.0869(5)nm,β=96.314°,Z=2,V=3.2630(14)nm3,Dc=1.849Mg·m-3,R1=0.0359,wR2=0.1036。2个配体桥联2个金属形成一种具有反演对称性的夹心式双核结构,其中每个Ce(Ⅲ)的配位环境N4O4都是一种四方反棱柱多面体,Ce-Ce距离为0.3971nm。在2～300K范围内测定了配合物的变温磁化率,结果表明,在配合物中Ce髥离子间存在反铁磁性相互作用。荧光光谱分析表明,配合物的荧光属于L*-L跃迁的发光类型。

基于2-(4-甲基苯甲酰基)苯甲酸及2,2′-联吡啶的双核铜(Ⅱ)配合物的晶体结构、荧光和磁性(英文)

以2-（4-甲基苯甲酰基）苯甲酸（HL）及2，2＇-联吡啶（2，2＇-bipy）为配体合成了一个双核铜（Ⅱ）配合物[Cu2（L）4（2，2＇-bipy）2]·H2O（1），并对其进行了晶体结构测定。测定结果表明，该配合物晶体属于三斜晶系，空间群为P1，晶胞参数：a=1.01257（15）nm，b=1.3125（2）nm，c=1.3170（2）nm，α=82.985（2）°，β=76.437（2）°，γ=88.290（2）°，V=1.6887（4）nm3，Dc=1.391g·cm-3，Z=2，F（000）=732，GooF=1.027，最终偏离因子R1=0.0375，wR2=0.0914。在配合物分子中相邻的2个铜（Ⅱ）离子通过2个2-（4-甲基苯甲酰基）苯甲酸根桥联配位连接起来，其端位各与1个2-（4-甲基苯甲酰基）苯甲酸根和1个2，2＇-联吡啶分子配位，整个分子形成了双核结构。测定了标题配合物的荧光和磁性，结果表明：当激发波长为608nm时，配合物在472和476nm处有2个较强的荧光发射峰；在2~100K，配合物具有顺磁性。

2-(4-甲基苯甲酰基)苯甲酸构筑的锰Ⅱ配合物的晶体结构、电化学、荧光及磁性研究(英文)

以2-（4-甲基苯甲酰基）苯甲酸（HL）为配体合成了一个新的锰（（Ⅱ）配合物Mn（L）2（2，2’-bipy）2。该配合物晶体属单斜晶系，空间群P21/c，晶胞参数：a=1.719 8（2） nm，b=1.039 80（14） nm，c=2.346 3（3） nm，β=95.732（3）°，V=4.174 8（9） nm3，Dc=1.346 g·cm-3，Z=4， μ（Mo Kα）=0.373 mm-1，F（000）=1 756，最终偏离因子R1=0.042 3，wR2=0.094 9。标题配合物的中心锰（Ⅱ）离子处于变形的八面体配位环境中。测定了配合物的电化学、荧光和磁性。结果表明：在循环伏安过程中，配合物的电子转移是准可逆的，对应的电极反应是Mn（Ⅲ）/Mn（Ⅱ）；配合物在536~556 nm之间有一个较强的荧光发射峰；在300~2 K，配合物有反铁磁性。