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.

Syntheses and Crystal Structures of Two New Main Group Metal Complexes (M = Al, Bi) with the Substituted p-Hydroquinones

The title complexes [Al（Hcah）（H2O）2]·2H2O （A） and [Bi（Hcah）（H2O）]n （B）, where H4cah = 2-[N,N-bis（carboxymethyl）aminomethyl] hydroquinone, have been synthesized and characterized using X-ray single-crystal structure determination, IR and elemental analysis. Both complexes crystallize in the monoclinic system, space group P21/c with a = 7.8660（16）, b = 10.096（2）, c = 19.053（4） and β = 93.50（3）° for A; and those for B： a = 9.2348（18）, b = 7.9061（16）, c = 17.141（3） and β = 102.64（3）°. In addition, further investigation revealed that the central Al（III） ion in the mononuclear complex A is in a distorted octahedral coordination geometry, while structural analysis reveals that the Bi（III） ion is in a distorted pentagonal bipyramid, forming a 2-D polymeric complex B, and the coordination network is a 2D 4.82 net. The TG analyses of A indicate two steps of water loss.

Syntheses, Crystal Structures, Thermal and Fluorescent Properties of Two New Bearing Bi(Ⅲ) Supramolecular Compounds

Two new bearing Bi(Ⅲ) supramolecular compounds [Bi(pydcH)_(3)(Bi(pydcH)(pydcH_(2))(pydc)(Bi(pydcH)(pydcH_(2))(pydc)](1) and {[Bi(pydcH)_(3)]·(H_(2)O)_(5)(Dmap)}_(2)(2) have been successfully synthesized via hydrothermal reaction(pydcH_(2) = 2,6-pyridine dicarboxylate, Dmap = 4-dimethylamiopyridine). They have been structurally determined by single-crystal X-ray analysis, and characterized by fluorescence analysis and thermogravimetric analysis(TG). Both compounds 1 and 2 are of the same triclinic system with different structures. The decomposition mechanisms of compounds 1 and 2 are discussed. Compared to 1, lots of small molecules were possibly removed from compound 2 below 250 ℃. In addition, the photoluminescence properties were also investigated.

基于3,4-吡啶二羧酸配体的钆(Ⅲ)配合物的合成、晶体结构及热性质(英文)

The hydrothermal reaction of pyridine-3,4-dicarboxylic acid(pydcH2),4,4'-bipyridine and GdCl3.6H2O yield a novel gadolinium coordination polymer {[Gd2(pydc)2(μ3-OH)2(H2O)2].H2O}n(1).The compound was chara-cterized by elemental analysis,thermal analysis,IR spectra and single-crystal X-ray structure analysis.The crystal of the Gd(Ⅲ) complex belongs to triclinic system,space group P1 with:a=0.796 25(16) nm,b=0.944 46(19) nm,c=1.262 1(3) nm,α=76.50(3)°,β=84.95(3)°,γ=83.04(3)°,Z=2,V=0.914 4(3) nm3,Dc=2.669 g.cm-1,μ=7.269 mm-1,F(000)=692,and R1=0.033 3,wR2=0.062 3.The crystal structure revealed that compound 1 has a 2D layer structure incorporating 1D Gd-O-Gd double chain,and hydrogen bonding interactions result in the former of 3D supramolecular network structure.CCDC:669079.

含钒氧链阴离子的苯基三联吡啶钴配合物的合成、晶体结构及性质研究

利用水热反应合成一种新型含钒氧链阴离子的苯基三联吡啶钴配合物{[Co(PhTPY)2]V3O9.3H2O}n(PhTPY=4′-ph-2,2′∶6′,2″-terpyridine)。用元素分析、红外光谱和X-射线单晶衍射对其结构进行了表征,该配合物晶体属单斜晶系,C2/c空间群。同时测定了配合物的热稳定性、荧光性质和磁性质。

2，6-二羟基苯甲酸邻菲啰啉镧配合物的合成与表征

在体积比为1：1乙醇水溶液中，采用常规溶液法合成了一种镧的配合物[La（N03）（phen）2（DHB）2]，其中，HDHB=2，6-二羟基苯甲酸。利用元素分析、IR、PL、TG和X射线单晶衍射分析进行了表征。结果表明：晶体属单斜晶系，P21／n空间群，a=1．12404（2）nm，b=2．66197（5）nm，c=1．14734（2）nm，β=101．8482（18）°，y=3．3599（1）nm3，Z=4，R1=0．0224，“wR2=0．0556。十配位的La（Ⅲ）处于四帽反三棱柱的多面体环境，配合物通过π-π”堆积作用扩展为三维的超分子体系。配合物与配体HDHB具有类似的荧光性能。