Synthesis,Crystal Structure and Photoluminescent Properties of a New Dinuclear Copper（Ⅰ） Complex [Cu2（μ2-dppm）2（MeCN）2（μ2-MeCN）]（ClO4）2·MeCN

The title compound [Cu2（μ2-dppm）2（MeCN）2（μ2-MeCN）]（ClO4）2·MeCN （dppm = bis（diphenylphosphino）methane） has been prepared and characterized. It crystallizes in the monoclinic system,space group P21/n,with a = 11.904（6）,b = 20.755（11）,c = 24.744（13）A,β = 98.226（12）°,C58H56Cl2Cu2N4O8P4,Mr = 1258.93,V = 6051（5） A^3,Z = 4,Dc = 1.382 g/cm^3,μ = 9.52 mm^-1,F（000） = 2592,R = 0.0533 and wR = 0.1295 for 6175 observed reflections with I 〉 2σ（I）. Each Cu（I） center is tetrahedrally coordinated by two phosphine atoms from two bridging dppm ligands,one nitrogen atom from a terminally coordinated acetonitrile molecule,and another nitrogen atom from a μ2-acetonitrile molecule. The two Cu（I） centers are bridged by two dppm ligands as well as a unique acetonitrile molecule. The full molecule exhibits a ＇chair-like＇ configuration. This dinuclear complex exhibits intense or middle photoluminescence at room temperature in the solid state or actonitrile solution at 486 nm.     

Synthesis and Crystal Structure of Dinuclear Copper(Ⅱ)Complex Cu_2(μ-PhCOO)_4(amet)_2·2CH_3COCH_3

1INTRODUCT1ONFormode1ingcompoundsofcertaincopper-containingenzymes,theinvestigationofdinuclearcoppercomplexeshasattractedtheattentionofinorganicandbiologicchemistst1i.Actingasoxygentransportproteinsforinvertebrates,oxyhemocyanin(oxyHc)hasadinuclearcoppersitewithaCu-Cuseparationofca.3.6A[2'3i(Fig.1).In1984,Karlinetal-[4ireportedthesynthesisofadinuclearcopper(I)com-plexwithabidentateligand.Thecomplexreactswithdioxygenquasireversibly,whichproducesaperoxodinuclearcopper(I)complex(Nallo=8O3…     

Synthesis and Crystal Structure of a New Mononuclear Copper Complex

<正>A new kind of Cu (II) complex [Cu(tpmb)2Cl2]·CH3OH·H2O (tpmb = 1,3,5-tri(2-pyrimidinyl)sulfanylmethyl-2,4,6-trimethylbenzene) was synthesized, and its structure has been determined by X-ray single-crystal diffraction. It crystallizes in the triclinic, space group P 1 with a = 8.8397(2), b = 13.327(3), c = 13.926(3) A, α = 63.27(3), β = 86.96(3), r = 80.68(3)°, V = 1445.6(5) A3, C49H51Cl2CuN12O2S6, Mr= 1166.82,Z=1, F(000) = 604, Dc = 1.340 g/cm3, μ = 0.735 mm-1, R = 0.0545 and wR = 0.1575 for 4521 observed reflections (I > 2σ(I)). X-ray analysis reveals that the Cu (II) ion is coordinated by two Cl- anions and two nitrogen atoms from different pyrimidine groups, forming a square structure.     

Synthesis and Crystal Structure of a New Tetracopper Complex [Cu(H_2O)_3Cu(HCDTA)]_2(ClO_4)_2·H_2O

A new tetracopper complex [Cu(H2O)3Cu(HCDTA)]2(ClO4)2·H2O (CDTA = transcyclohexane-1,2-diamine-N,N,N′,N′-tetraacetate) has been prepared and characterized by singlecrystal X-ray diffraction analysis. The crystal adopts space group C2/c with a = 16.990(10), b = 9.150(5), c = 29.318(17) , β = 104.289(9)°, V = 4417(4) 3, Z = 4, C28H52Cl2Cu4N4O31, Mr = 1265.80, Dc = 1.904 g/cm3, μ = 2.130 mm-1, F(000) = 2584, T = 293(2) K, the final R = 0.0328 and wR = 0.0809 for 4938 observed reflections (I 2σ(I)). The tetracopper units are interconnected by weak covalent bonds into a layered structure.     

Synthesis and Crystal Structure of a New Mononuclear Copper( Ⅱ ) Complex: [Cu(BMI)_4(SO_4)]·DMF·2H_2O

A new copper(II) complex, [Cu(BMI)4(SO4)]·DMF·2H2O (BMI = benzimida- zole), has been synthesized by the treatment of CuCN with 2-mercaptobenzimidazole in the presence of 1,10-phenanthroline, and characterized by single-crystal X-ray diffraction. It crystalli- zes in monoclinic, space group P21/n with a = 17.6260(4), b = 11.1252(3), c = 18.6573(4)(A),β = 107.9010(10)°, V = 3481.45(14)(A)3, Z = 4, C31H35CuN9O7S, Mr = 741.28, F(000) = 1540, Dc = 1.414 g/cm3, μ = 0.746 mm-1, the final R = 0.0649 and wR = 0.1609 for 4382 observed reflections with I > 2σ(I). The Cu(II) atom is coordinated by five unidentate ligands (one sulfate and four benzimidazole ligands) generated in situ, displaying a slightly distorted square pyramid geometry.     

Hydrothermal Synthesis, Crystal Structure and Electrochemical Properties of a New Dinuclear Copper Complex [C2H6ON]2[Cu2Cl2(μ-CH2COO)4]

The hydrothermal reaction of copper chloride dihydrate and 5,5-dimethyl-imi-dazolidine-2,4-dione with a mole ratio of 1:1 in acetonitrile resulted in the formation of a new acetate-bridged dinuelear copper complex, [C2H6ON]2[Cu2Cl2(μCH3COO)4]. Protonated aeetamide in enolic form and acetic acid were yielded by the hydrolysis of aeetonitrile under hydrothermal condition. The title complex (C12H24Cl2Cu2N2O10) was charactetized by X-ray single-crystal diffraction, IR spectrum, elemental and electrochemical analysis. It crystallizes in the monoclinie system, space group P21/c with a = 8.2980(14), b = 14.358(2), c = 12.0010(2) A,β= 130.620(3)°, V= 1085.3(2)A3, Dc = 1.696 g/am3, Mr = 554.31, Z = 2, F(000) = 564 and μ= 2.254 mm-1. The crystal structure consists of a tetraacetate-bridging dinulcear copper complex anion [Cu2Cl2(μ-CH3COO)4]2-, with the chlorine anions in the axial positions, and two protonated acetamide cations [C2H6ON]+, which were connected through hydrogen bonds to form a three-dimensional infinite network.     

Synthesis,Crystal Structure and Property of a Binuclear Copper Complex [Cu_2L_2(pht)_2]_2·H_2O

A new binuclear copper complex, [Cu2L2(pht)2]2·H2O(Hpht = 5,5-diphenylhydantoin, i.e. phenytoin; L = 2-diethylaminoethanol), has been synthesized by the solvothermal method, and characterized by elemental analysis, IR and single-crystal X-ray diffraction. The crystal belongs to the monoclinic system, space group C2/c with a = 31.918(3), b = 12.9222(15), c = 19.868(2) , β = 98.762(2)o, V = 8098.8(16) 3, Dc = 1.429 Mg/m3, Z = 4, F(000) = 3640, μ = 1.107 mm-1, R = 0.0560 and wR = 0.1276(I 2(I)). Each copper(Ⅱ) in a molecule is coordinated with N and O atoms from ligand L and N atom from ligand Hpht in a tetradentate manner. Moreover, two copper(Ⅱ) centers are bridged by two O atoms of hydroxyl groups from two L ligands to form a slightly distorted binuclear {Cu2O2} diamond configuration. In addition, the interaction of this complex with calf thymus DNA(CT-DNA) was investigated by UV-vis spectrum and viscometry, and the complex may bind to DNA through intercalation.     

Synthesis and Crystal Structure of a New Dinuclear Copper(II) Polymer: [Cu_2(bipy)_2(Hbtc)_2(H_2O)_2]·(H_2O)_(1/2)

1INTRODUCTION There is currently considerable interest in the ra-tional design and controlled synthesis of metal-organic frameworks(MOFs)with unique structural motif on account of their promising applications as catalysts,gas storage,selective separation,sensor,ion exchange and magnetic materials[1,2].Particu-larly,the supramolecular architectures with helical structures have received much more attention over the past decades owing to their specific functions in biology.It is well recogn…     

Synthesis and Structure of a New Dinuclear Uranyl Complex

Dinuclear complexes have been widely investigated since 1970s when Robson proposed the conception of dinucleating ligand1,2. These compounds attracted much interests because of their applications as metal-enzemy model in bioinorganic chemistry or promising applications as functional materials. Most of these dinuclear complexes contain d transition metals as central ions. Few dinuclear U complexes have been reported. It is known, in most complexes of axial ion, five donors from ligands shou…     

Hydrothermal Synthesis and Crystal Structure of a Novel Dinuclear Co(Ⅱ) Complex:[Co2(2,2'-bpy)_2(μ-L)_2(L)_2(μ-H_2O)](HL=4-Chlorobenzoic Acid)

A new 4-chlorobenzoic acid bridge Co(Ⅱ) complex [Co2(2,2'-bpy)2(μ-L)2(L)2(μ-H2O)] (HL=4-chlorobenzoic acid) has been obtained by hydrothermal synthesis,and X-ray single-crystal diffraction analysis shows that it crystallizes in the monoclinic system,space group C2/c with a=22.537(5),b=16.212(3),c=15.306(3) ,β=124.37(3)°,V=4616.1(16) 3,Mr=1070.45,Dc=1.540 g/cm3,Z=4,μ=1.012 mm-1,F(000)=2176,the final R=0.0338 and wR=0.0810. The title complex is composed of dinuclear [Co2(2,2'-bpy)2(μ-L)2(L)2(μ-H2O)] molecules. Each Co(Ⅱ) atom is coordinated by two nitrogen atoms from one 2,2'-bipyridine ligand,three oxygen atoms from three 4-chlorobenzoic ions and another oxygen atom from one water molecule. The two Co(Ⅱ) atoms are connected by two 4-chlorobenzoic ions and one bridged water molecule. The dinuclear molecules are interlinked by hydrogen bond and π-π stacking interactions into a three-dimensional supramolecular network.     

Hydrothermal Synthesis,Crystal Structure and Electrochemical Properties of Complex [Cd(phen)_3]·(ClO_4)_2·(p-MBA)_2·(H_2O)_2

One new cadmium complex [Cd(phen)3]·(ClO4)2·(p-MBA)2·(H2O)2 has been hydro-thermally synthesized by reacting p-methylbenzoic acid (p-MBA),1,10-phenanthroline (phen) and cadmium perchlorate. It crystallizes in the triclinic system,space group P1,with a=1.2809(3),b= 1.3431(3),c=1.3734(3) nm,α=84.259(4),β=71.603(3),γ=74.424(3)o,V=2.1594(8) nm3,Dc= 1.532 g/cm3,Z=2,F(000)=1008,μ=0.697 mm-1,R=0.0646 and wR=0.1648. The crystal structure shows that the cadmium ion is coordinated with six nitrogen atoms from three 1,10-phenanthroline molecules,forming a distorted octahedral coordination geometry. The result of electrochemical property analysis shows that the electron transfer in the electrode reaction is irreversible.     

Hydrothermal Synthesis,Crystal Structure and Electrochemical Properties of a New Dinuclear Copper Complex [C2H6ON]2[Cu2Cl2（μ-CH3COO）4]

The hydrothermal reaction of copper chloride dihydrate and 5,5-dimethyl-imidazolidine,-2,4-dione with a mole ratio of 1：1 in acetonitrile resulted in the formation of a new acetate-bridged dinuclear copper complex, [C2H6ON]2[Cu2Cl2（μ-CH3COO）4]. Protonated acetamide in eaolie form and acetic acid were yielded by the hydrolysis of acetonitrile under hydrothennal condition. The rifle complex （C12H24Cl2Cu2N2O10） was characterized by X-ray single-crystal diffraction, IR spectrum, elemental and electrochemical analysis. It crystallizes in the monoclinic system, space group P21/c with a = 8.298004）, b = 14.358（2）, c = 12.0010（2） A^°, β= 130.620（3）°, V = 1085.3（2） A^°^3, Dc = 1.696 g/cm^3, 34, = 554.31, Z = 2, F（000） = 564 and μ = 2.254 mm^-1. The crystal structure consists of a tetraacetate-bridging dinulcear copper complex anion [Cu2Cl2（μ-CH3COO）4]^2-, with the chlorine anions in the axial positions, and two protonated acetamide cations [C2H6ON]^＋, which were connected through hydrogen bonds to form a three-dimensional infinite network.     

Synthesis and Crystal Structure of an Acetate Radical Bridged Dinuclear Copper(Ⅱ) Complex

A new acetate radical bridged dinuclear copper(Ⅱ ) complex (C8H9NO2)2-Cu2(CH3COO)4 has been synthesized by the reaction of Cu(OAc)2 with pyridine-3-ethyl formate and further characterized by X-ray single-crystal diffraction. Crystal data for the title compound: triclinic system,space group P1,with a=8.1654(14),b=9.7010(16),c=9.9005(17) ,α= 83.266(2),β=78.887(2),γ=72.881(2)o,V=733.9(2) 3,Mr=665.58,Z=1,Dc=1.506 g/cm3,F(000)=342,μ=1.510 mm-1,the final R=0.0392 and wR=0.1005. According to the structural determination,each unit of the title compound is composed of two Cu(Ⅱ) atoms,two pyridine-3-ethyl formate molecules and four acetate ions. Each Cu(Ⅱ) coordinates to oxygen atoms of acetate and nitrogen atoms of pyridine-3-ethyl formate ligand to give a six-coordinate distorted octahedral geometry. It is worth mentioning that strong Cu–Cu bond can be observed in the title compound.     

Synthesis, Crystal Structure and Electrochemical Properties of Complex [Ni(2,2’-bipy)_2(ClC_6H_4COO)(H_2O)](ClO_4)

1 INTRODUCTION Nickel is vital for organism as a trace element and it often acts as component or secondary factor of enzyme. In the latest two decades, biological inor- ganic chemistry of nickel has become one of the hottest fields and the coordination chemistry of nic- kel has made a great progress[1]. Complexes built upon organic aromatic carboxylic acid and metallic ion have attracted chemists’ interest for years due to their potential applications in material, medicine, molecular ele…     

Synthesis and Crystal Structure of a Novel Complex [Ag(NIT3Py)_3]·(ClO_4)(H_2O)

1 INTRODUCTION Nitronyl nitroxide radicals (NITR), stable organic radicals, have played an important role in the design and synthesis of molecular magnetic materials[1, 2]. However, nitronyl nitroxide radicals are poor elec- tron-donor ligands and their coordination ability is limited. Recently, it has led to the development of functionalized nitronyl nitroxide radicals in which a strong coligand is incorporated. Due to the strong coordinate ability of nitrogen atom from pryidinyl ring,…     

Synthesis and Crystal Structure of a Heterotrinuclear Compound [PdCu_2(tdt)(μ-dppm)_2(MeCN)_4]-(ClO_4)_2·2/3H_2O (tdt = 3,4-Toluenedithiolate, dppm =Bis(diphenylphosphino)methane)

1 INTRODUCTION Great attention has been attracted to design novel heterometallic molecular materials with phosphorus- and sulfur-containing ligands, owing to their abundant optical and opto-electronic properties[1～4]. Self-assembly is an efficient ap- proach to obtain heterometallic assembly by the Incorporation of two different metal components[5, 6]. We are interested in investigating the reaction between Pd(diimine)(dithiolate) and metal dip- hosphine Cu2(μ-dppm)2(MeCN)42 , the fo…     

Synthesis,Crystal Structure and Fluorescent Property of [Ag_3(μ_3-I)_2(μ_2-dppm)_3]I·0.5THF·0.5H_2O

1INTRODUCTIONThepropensityforaggregationofformallyclosed-shelld10metalionsinpolynuclearcoordinationcom-plexesandsolid-statelatticeshaslongbeenrecog-nizedandexplored.Simultaneouslythesupramole-cularassemblyanddesignofmoleculeswithrichphotophysicalpropertieshavearousedgreatinter-est[1～4].Sincebis(diphenylphino)methane(dppm)ligandiswidelyusedfortheformationofpoly-nuclearmetalcomplexeswithmosttransitionmetalions[5～7],weutilizeddppmasabridgingligandtoreactwithsilveriodide,resultinginabicapped…     

Crystal Structure and Magnetic Properties of a Dinuclear Terbium Compound Tb_2(μ_2-anthc)_4(anthc)_2(1,10-phen)_2

A dinuclear Tb(Ⅲ) compound, Tb_2(μ_2-anthc)_4(anthc)_2(1,10-phen)_2(1, Hanthc = 9-anthracenecarboxylic acid and 1,10-phen = 1,10-phenanthroline), was synthesized under solvothermal condition and structurally characterized by single-crystal X-ray diffraction. Compound 1 crystallizes in the triclinic system, space group P1, with a = 12.5061(12), b = 13.3168(10), c = 15.0079(12) ?, α = 110.620(7), β = 102.941(7), γ = 107.036(7)o, V = 2081.8(3) ?~3, Z = 1, C_(114)H_(70)N_4O_(12)Tb_2, M_r = 2005.58, D_c = 1.600 g/cm~3, μ = 1.759 mm~(-1), F(000) = 1008, the final R = 0.0294 and w R = 0.0608 for 8900 observed reflections with I 2s(I). In compound 1, two Tb(Ⅲ) ions are linked by four carboxylate groups of the bridging anthc– ligands to give a dinuclear Tb_2(μ_2-anthc)_4 unit wherein each Tb(III) ion is further capped by a terminal anthc– ligand and a 1,10-phen ligand in a chelating fashion. Detailed direct-current and alternating-current susceptibility measurements showed no slow magnetism relaxation phenomenon was observed for 1.