Synthesis and Structure of a La（Ⅲ） Complex of 1,10-Phenanthroline-2,9-dicarboxylate： a Three-dimensional Network via Hydrogen Bonding Interactions

A new La（Ⅲ） complex, {[La（L）（NO3）（H2O）3]·H2O}n （L = 1,10-phenanthroline- 2,9-dicarboxylate）, has been synthesized and structurally determined by X-ray diffraction analysis. The complex crystallizes in the monoclinic system, space group P21/c with a = 7.7358（17）, b = 8.1664（18）, c = 28.271（6） A, β= 95.184（4）°, V= 1778.6（7） A3, Z = 4, C14H14LaN3O11, Mr = 539.19, Dc = 2.014 g/cm^3, μ= 2.471 mm^-1, F（000） = 1056, the final R = 0.0350 and wR = 0.0659. In this complex, each metal center adopts a ten-coordination geometry formed by two N atoms from a ligand L and eight O atoms from three H2O molecules, a nitrate ion and carboxylates of two ligands. Each ligand adopts a N2,O3-pentdentate coordination mode using two N and two O atoms chelating a La（Ⅲ）, and using another O atom of carboxylate to bridge another La（Ⅲ） center resulting in a 1D helical chain molecule. Intermolecular strong O-H…O and weak C-H…O hydrogen bonds extend the 1D chain structure into a 3D supramolecular architecture.     

Synthesis and Crystal Structure of a Three-dimensional Manganese(Ⅱ)Complex Constructed via Covalent and Hydrogen Bonds

1INTRODUCTIONCrystalengineeringofone-,two-andthree-dimensionalsupramolecularcomplexesiscurrentlyofgreatinterestowingtothefascinatingstructuraldiversityandpotentialapplicationsinmaterials,suchaselectricconductivity,magnetism,host-guestapplication,molecularrecognitionandcatalysis[1,2].Severaltypesofinteractions,suchascoordinationcovalentbond,hydrogenbond,p-pstackingandelectrostaticinteractionscanbeusedtoconstructextendedsupramolecularframeworks[3~6],butcoordinationbondingandhydrogenbondingin…     

Hydrothermal Synthesis, Structure and Thermal Properties of a Novel Three-dimensional La(Ⅲ)-Sebacate Framework

A novel lanthanide-organic framework compound [La(seb)(Hseb)(H2O)]n (H2seb = sebacic acid) has been hydrothermally synthesized and structurally characterized by elemental analysis, IR spectra, TG and single-crystal X-ray diffraction. Complex 1 crystallizes in the triclinic system, space group P with a = 8.5849(7), b = 9.0641(8), c = 15.4049(13), α = 98.1830(10), β = 100.6870(10), γ= 97.5650(10)°, Z = 2, V = 1150.44(17) 3, Dc = 1.612 g/cm3, Mr = 558.39, λ(MoKα) = 0.71073 , μ = 1.903 mm-1, F(000) = 568, R = 0.0219 and wR = 0.0507 for 3797 observed reflections with I > 2σ(I). The structure contains edge-shared chains of [LaO8(H2O)] tricapped trigonal prisms that propagate along the b axis. In aliphatic ligand participation, complex 1 exhibits a three-dimensional supramolecular framework. Moreover, the thermal stability of complex 1 has been investigated.     

Synthesis, Structure and Properties of a Two-dimensional Samarium(Ⅲ) Complex of 1,3-Benzenedicarboxylic Acid and 1,10-Phenanthrolin

The title complex Sm2(bdc)3(phen)2n (1, H2bdc = 1,3-benzenedicarboxylic acid, phen = 1,10-phenanthrolin), a new samarium(Ⅲ) complex based on ligand H2 bdc and 1,10-phenanthrolin, has been hydrothermally synthesized and characterized by elemental analysis, FT-IR, and single-crystal X-ray diffraction. The crystal structure reveals that the Sm(1) centre adopts an eight-coordinated distorted square anti-prism coordination geometry, while the Sm(2) centre adopts a nine-coordinated distorted monocapped square prism coordination geometry. The ligand bdc 2-takes two different connecting modes and links the Sm(Ⅲ) centers to give rise to a 2D network structure. Further, 2D layers of 1 are connected together to form a 3D structure through C-H···O hydrogen bonding interactions. The luminescent property and thermal stability of complex 1 are studied. 1 belongs to the triclinic system, space group P1 with a = 10.7367(5), b = 14.3750(7), c = 13.7505(3), α = 92.8840(10), β = 104.4010(10), γ = 98.1400(10)o, Z = 2, V = 2143.44(18)3 , Mr = 1153.44, Dc = 1.787 g/cm3 , F(000) = 1128, μ = 2.784 mm-1 , the final R = 0.0279 and wR = 0.0720 for 8226 observed reflections with Ⅰ > 2σ(Ⅰ).     

Synthesis and Crystal Structure of Tetra Benzoates Bridged Binuclear Sm(III) Complex

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Synthesis and Crystal Structure of Novel Dimer of Bismuth( Ⅲ ) Complex with Dithiotetrahydropyrrolocarbamate:[Bi (S2CNC4H8) 2 (NO3) ]2

A novel dimer of the bismuth ( Ⅲ ) complex with dithiotetrahydropyrroloearbamate, [Bi (S2CNC4H8)2 ·(NO3)]2, was synthesized and the crystal structure was determined by X-ray single crystal diffraction. The crystal belongs to a monoclinic system with space group P21/n, a=0. 64718(13) nm, b=2. 6738(6) nm, c=1. 0423(2) nm, β=106. 384(3)°, Z=4, V=1. 730(3) nm3, Dc=2.163 g/cm3, μ=10. 682 mm-1, F(000)=1072, R= 0. 0329, wR=0. 0659. The structure shows a distorted pentagonal bipyramidal configuration with the seven-coordinated central Bi atom. In the crystal, the molecular packing in the unit cell reveals that the two adjacent molecules are symmetrically linked each other in the dimer by virtue of a couple of Bi-S interaction.     

Synthesis and Crystal Structure of a Manganese(Ⅱ) Complex with 2-(4'-Chlorine-benzoyl)-benzoic Acid and 1,10-Phenanthroline

A new metal-organic complex Mn2(cbba)4(phen)2 (Hcbba = 2-(4'-chlorine-benzoyl)-benzoic acid, phen = 1,10-phenanthroline) 1 has been hydrothermally synthesized and structurally characterized by single-crystal X-ray diffraction, elemental analyses and IR spectroscopy. The compound crystallizes in orthorhombic, space group Pbcn with a = 12.154(5), b = 18.166(7), c =31.197(13) (A°), V = 6887(5) (A°)3, C80H48C14Mn2N4O12, Mr= 1508.90, Dc = 1.455 g/cm3, μ(MoKa) =0.591 mm-1, F(000) = 3080, Z = 4, the final R = 0.0408 and wR = 0.0873 for 4033 observed reflections (I > 2σ(I)). In the crystal structure, the manganese atom is six-coordinated with four carboxylate oxygen atoms from three different cbba ligands and two nitrogen atoms from phen ligands, showing a distorted octahedral geometry. Furthermore, it exhibits a 3D supramolecular network through π-π interactions.     

Synthesis and Crystal Structure of a Cyano-bridged Bimetallic Complex:[NdFe(CN)_6(DMF)_4(H_2O)_3]H_2O

1 INTRODUCTION In recent years, cyano-bridged heterometallic coordination compounds have inspired remarkable attention due to their rich and interesting structures and magnetic behaviors. However, these studies were mainly focused on the transition metals. Although several unusual cyanide bridging lanthanide-transition metal complexes have been re- ported[1～6], this field continuously possesses tre- mendous researching potentialities. As regardsPrussian Blue lanthanide complex, divers…     

Synthesis and Crystal Structure of a Tetranuclear Cu(Ⅰ) Complex with Vinyfidenebis(diphenylphosphine)

The vinylidenebis(diphenylphosphine) (vdpp) reacts with CuBr to give a tetranuclear complex, [Cu4(μ3-Br)2(μ2-Br)2(μ2-vdpp)2(CH3CN)2]·(CH3CN)2 1. The title complex has crystallo-graphically imposed centrosymmetry and presents a Cu4Br4 core with distorted stair-like structure. All copper(Ⅰ) atoms in 1 assume distorted tetrahedral coordination geometry. The distance of 2.7745(11) A between the two copper centers indicates the presence of ligand-supported Cu…Cu interactions. Crystal data for 1: C60H56Br4Cu4N4P4, Mr = 1530.77, triclinic, space group P1, a = 11.6593(9), b = 11.7181(9), c = 13.8711(11) A, α = 110.1020(10), ,β = 102.0050(10), γ = 109.8040(10)°, V = 1557.5(2) A3, Z = 1, Dc = 1.632 g/cm3, F(000) = 760, λ = 0.71073 A, T = 298(2) K, 2θmax = 50.04°,μ = 4.056 mm-1, S = 1.181, R = 0.0507 and wR = 0.1025.     

Synthesis,Crystal Structure and Fluorescent Property of a Lanthanum(Ⅲ) Complex Coordinated with Quinolinyloxy Acetamide Ligand

A novel lanthanum(Ⅲ) complex, [LaL2(NO3)3]·H2O(1) based on L(L = N-(naphthalene-1-yl)-2-(quinolin-8-yloxy)acetamide), was synthesized and characterized by X-ray diffraction. The crystal of 1 belongs to the monoclinic system, space group C2 c with Mr = 1017.69, a = 25.1438(17), b = 13.5950(9), c = 18.2349(12) A, β = 132.4980(10)°, V = 4595.8(5) A3, Z = 4, Dc = 1.471 Mg/m3, F(000) = 2056, μ = 1.004 mm-1, R = 0.0588 and wR = 0.1402. The central La(Ⅲ) ion is coordinated to four oxygen atoms, two nitrogen atoms from two independent acetamide ligands and six oxygen atoms from three nitrate anions, possessing a distorted icosahedron coordination geometry. In the crystal of 1, intermolecular N–H···O hydrogen bonds linked the molecules into chains along the c axis. In solid state and CH3 CN solution, complex 1 exhibits stronger fluorescent emission than the ligand L.     

Synthesis and Crystal Structure of trans(N)-(1,10-Phenanthroline)-bis (DL-Al aninato)-Cobalt( Ⅲ ) Chloridetrihydrate

The title compound was synthesized by the reaction of cis-[Co(phen)2Cl2]Cl·3H2O with DL-alanine at pH = 8, and isolated using a column chromatographic method. Its crystal structure was determined. The crystal structure belongs to mono-clinic system, space group P21/c, with a = 0. 9549(6) nm, b=2.3746(8) nm, c= 1.0782(4) nm, β=114.13(3)°? Z = 4, Dc= 1. 50 g/cm3. The final refinement converged to R = 0. 047 for 3246 independent observed reflections. In the octahedral coordination sphere formed by the cobalt atom and the coordinate atoms, N, O of DL-alan-inato ligands are in the configuration of trans-N ,N form.     

Hydrothermal Synthesis,Crystal Structure and Properties of a Lanthanum(Ⅲ) Complex Based on a N,O-Donor Ligand

A novel metal-organic complex [La(o-NCP)3]n(o-HNCP = 2-(2-carboxyphenyl)imidazo(4,5- f)(1,10)-phenanthroline) has been hydrothermally synthesized and characterized by elemental analysis, infrared analysis and X-ray single-crystal diffraction. The complex crystallizes in triclinic, space group P1 with a = 9.898(2), b = 16.193(3), c = 16.909(3) , α = 67.68(3), β = 80.85(3), γ = 78.78(3)o, V = 2448.2(8) A3, Z = 2, Mr = 1156.9, Dc = 1.569 g/cm3, μ = 0.71073 A, F(000) = 1164, GOOF = 1.065, the final R = 0.051 and wR = 0.123 for 8539 observed reflections with I 2A(I). The complex exhibits a one-dimensional double chain structure. The adjacent chains are further connected by N–H...N hydrogen bonds which help to form a two-dimensional supramolecular architecture. Furthermore, the complex exhibits excellent thermal stability and luminescent property.     

Thermal Decomposition Kinetics and Mechanism of Tb(Ⅲ) m-Methylbenzoate Complex with 1,10-Phenanthroline in Static Air Atmosphere

IntroductionThe rare- earth carboxylic acid complexes havemany special structures and interesting spectro-scopic properties,which are of great interestin ex-traction,separation,germicide preparation,catal-ysis,luminescence and functional material prepara-tion.The preparation,crystal structure,fluores-cence spectroscopy and thermal properties of somerare- earth carboxylic acid complexes have beenstudied[1— 8] . In this work,on the basis of thestructural and fluorescence spectroscopicresearches…     

Hydrothermal Synthesis and Crystal Structure of Zinc(Ⅱ) Dinicotinate Complex [Zn(nic)2(H2O)4](nic=nicotinic acid):A Three-dimensional Hydrogen-bond Network

Introduction Nicotinic acid and its transition-metal comple-xes have become increasingly important due to their potential applications as cosmetics or medicines with antitumor, antibacterial and antifungal activities, and the activity in the maintenance of normal glucose metabolism[1-3], etc. A major research effort has been made to generate such materials and to study their biological activity[4-9]. But few of the previous works have directed towards the structure investigation of these metal complexes[6-9]. So, in this report we aim at testing the effect of hydrothermal synthesis on the formation of the crystal structures of crystalline [Zn(nic)2(H2O)4 ](nic=nicotinic acid).     

Synthesis and Crystal Structure of a New Praseodymium(Ⅲ)-Copper(Ⅱ) Polymeric Complex: [Pr2Cu3(L1)6]n (H2L1=NH{CH2COOH}2)

A novel polymeric Pr2Cu3 complex of iminodiacetic acid (H2L1=NH{CH2COOH}2) [Pr2Cu3(L1)6]n , 1, has been synthesized and structurally characterized. The title complex Pr2Cu3O24N6C24H30 (Mr=1258.97) crystallized in trigonal space group Pc1 (No. 165) with a = 13.424(4), c=14.752(6)(); V=2303(1)()3; F(000)=1226; λ(MoKα)=35.2 cm-1; Dc=1.820 g.cm-3; Z=2. The final R and Rw are 0.072 and 0.081 respectively for 1412 reflections with I>3σ(I). In crystal 1, the Pr3+ ion is nine-coordinated by 6 O atoms from three bidentate chelating carboxylate groups and 3 O atoms from three anti-anti bridging carboxylic groups of six L1 ligands; the Cu2+ ion is six-coordinated by 4 O and 2 N atoms from two pentadentate L1 ligands. Each pair of Pr(Ⅲ) atoms is bridged by three L1 ligands, each of which also chelates with one copper(Ⅱ) ion, thus forming a Pr2Cu3 cluster unit. Such cluster units are cross-linked by flexible L1 ligands into a three-dimensional coordination framework.     

Synthesis and Crystal Structure of a Novel Binuclear Cu(Ⅱ) Complex with Tetradentate Schiff-base Ligand

A novel binuclear complex ([Cu2(μ2-shed)(hshed)]·(ClO4)·H2O, h2shed = N-salicylidene-N′-(2-hydroxyethyl)ethylenediamine) has been synthesized and structurally characterized by X-ray diffraction analysis. It crystallizes in monoclinic, space group P21/c with a = 12.511(10), b =15.750(12), c = 14.281(12) (A), β = 100.564(14)°, C22H31ClN4O9Cu2, Mr = 658.04, V= 2766(4) (A)3, Z =4, Dc = 1.580 g/cm3, μ(MoKα) = 1.689 mm-1, F(000) = 1352, the final R = 0.0528 and wR = 0.1433 for 4880 independent reflections with Rint = 0.0577. The complex is a binuclear copper compound,and two Cu(Ⅱ ) ions in the binuclear cation are in different coordination environments. The Cu(1) ion adopts a distorted square pyramidal geometry (τ = 0.22) with four donor atoms (N2O2) of the ligand in the basal plane, and one hydroxyl oxygen atom with protonated form occupying the apical position.The Cu(2) ion assumes the geometry of a distorted square plane with four donor atoms (N2O2) of the ligand. The Cu…Cu separation is 3.103 (A). In addition, N-H…O and C-H…O intermolecular hydrogen bonding interactions link these binuclear cations into a quasi one-dimensional chain along the a axis.     

Synthesis, Crystal Structure and Magnetic Properties of a New Zn(Ⅱ)-Nitronyl Nitroxide Complex

A new complex [Zn(NIT-1'-MeBzIm)Cl2(H2O)] (NIT-1'-MeBzIm = 2-{2'-[(1'-methyl)benzimidazolyl]}-4,4,5,5-tetramethylimidazoline-l-oxyl-3-oxide) has been prepared and structurally characterized by X-ray diffraction method. Crystal data: monoclinic, space group P21/n, Z = 4, C15H21Cl2N4O3Zn, Mr = 441.63, a = 7.2225(10), b = 30.849(4), c = 8.8758(13) (A), β= 103.904(2)°, V = 1919.6(5) A3, Dc = 1.528 g/cm3, μ(MoKα) = 1.579 mm-1, F(000) = 908, R = 0.0436 and wR = 0.1029 for 2456 observed reflections with Ⅰ> 2σ(Ⅰ). X-ray analysis reveals that the Zn(Ⅱ) ion is four-coordinated with a distorted tetrahedron. There also exist H-bonds, π-π piling interactions and weak intermolecular contacts between the NO groups which form a mutual stagger 3-D network configuration. Magnetic investigation reveals that there exists intermolecular antiferro- and ferromagnetic interactions in the title complex.     

Synthesis and Structure of a Novel Macrocyclic Complex [Cd_2(phen)_4(phth)_2]·4H_2O

1 INTRODUCTION In recent years, extensively attention has been fo- cused on the design and synthesis of d10 metal- based complexes[1, 2]. A series of d10 metal-organic frame- works have been described not only because of their intriguing structures but also due to their ptential ap- plications in photoluminescent fields[3～7]. Although phthalate ligand was successfully used to design and synthesize a wide variety of metal complexes, those containing Cd(II) complex are less considered[8～…     

Synthesis and Crystal Structure of a New Copper(II) Complex with 4-Cyanobenzoic Acid

1 INTRODUCTION Exploration on the syntheses and properties of car- boxylate complexes, especially aromatic carboxylate complexes, has always been a fascinating and chal- lenging research field for decades either in coor- dination chemistry or in functional materials[1, 2]. Cy- anobenzoic acid (Hcba) possessing two functional coordination groups should display structural diver- sities on the formation of complexes[3～15]. In particu- lar, the copper(II) carboxylate complexes bearing spe- …     

Synthesis and Crystal Structure of [Cis-1,10phenanthroline-palladium(Ⅱ)(THF)_2]dinitrate (THF = Tetrahydrofuran)

1 INTRODUCTION The coordination chemistry of Pd(Ⅱ) com- plexes with didentate nitrogen coordination ligands has been extensively studied for a few decades[1]. Pd(Ⅱ) trends to bond to the didentate nitrogen in cis-mode and such complexes have potential usage in the emerging area of self-assembly[2]. We will report herein the synthesis and crystal structure of a cis-coordinated mononuclear Pd(Ⅱ) complex with one 1,10-phenanthroline and two THF as ligands, 1. 2 EXPERIMENTAL 2. …