Synthesis and Crystal Structure of Two One—dimensional Chain Copper Complexes [Cu（TTA）2（4,4‘’—azpy）] and [Cu（TTA）2（3,3‘’—azpy）

Two copper complexes [Cu(TTA)₂(4,4′‐azpy)] (1) and [Cu‐(TTA)₂(3,3′‐azpy)] (2) (HTTA = 1,1,1‐trifluoro‐3‐(2‐thenoyl)‐acetone, 4,4′‐azpy = 4,4′‐azobispyridine, 3,3′‐azpy = 3,3′‐azobispyridine) were synthesized and characterized. The crystal structures were determined by X‐ray diffraction analysis. The crystal 1 belongs to triclinic with space group P1 , a = 0.8515(2) nm, b = 0.9259(2) nm, c = 0.9468(2) nm, a = 66.126(9)°, β = 79.667(9)°, γ = 90.13(1)°, Z = 1, V = 0.6692(2) nm³, D_c = 3.425 g/cm³, γ = 2.113 mm^?1, F(000) = 694, R₁ = 0.0594, wR₂ = 0.1499. The crystal 2 belongs to monoclinic with space group P2₁/c, a = 1.0661(2) nm, b = 1.4296(3) ran, c = 1.0041(3) nm, β = 114.50(3)°, V = 1.3926(5) nm³, Z = 2, D_c = 1.646 g/ cm³, μ = 1.015 mm^?1, F(000) = 694, R₁, = 0.0535, wR₂ = 0.1113. In the crystals of complexes 1 and 2, the copper atoms have distorted octahedral symmetry. The two compounds possess very similar one‐dimensional linear chains linked through the rodlike 4,4′‐azpy ligands or 3,3′‐azpy ligands.     

Synthesis andCrystal Structure of{[Mn（H2O）4（3,3′—azpy）]（3,3′—azpy）3（PF6）2}n

The complex {[Mn(H2O)4(3, 3?-azpy)](3, 3?-azpy)3(PF6)2}n (3, 3?-azpy = 3, 3?- azobispyridine) has been synthesized and characterized. The crystal (C40H40F12MnN16O4P2, Mr = 1153.76) belongs to the triclinic system, space group P ī with the following crystallographic parameters: a = 10.761(2), b = 11.040(2), c = 23.365(4) ?, ( = 85.52(1), ( = 82.69(1), ( = 70.44(1)°, V = 2592.5(8) ?3, Dc = 1.478 g/cm3, ((MoK() = 4.16 cm-1, F(000) = 1174, Z = 2, final R = 0.0493 and wR = 0.1158 for the observed reflections (I > 2.00((I)). The X-ray analysis revealed that manganese(Ⅱ) cation coordination environment is a distorted octahedral geometry, and the Mn2+ cation is coordinated by four oxygen atoms of water in the equatorial plane, while the two nitrogen atoms of 3, 3?-azpy occupy the axial positions. The complex forms a one-dimensional chain structure via 3, 3?-azpy bridging ligand.     

Synthesis and crystal structure of [Cu(azpy)(H2O)4][Cu2(nta)2(azpy)]····6H2O: A two-dimensional network solid

The copper(II) complex [Cu(azpy)(H₂O)₄][Cu₂(nta)₂(azpy)]····6H₂O (nta = nitrilotriacetate, azpy = 4,4-azobispyridine) has been synthesized and structurally characterized. It crystallizes in the triclinic space group P , a = 8.6985(3) Å, b = 9.4776(3) Å, c = 14.6544(5) Å, = 71.5360(10)°, = 85.7600(10)°, = 88.1420(10)°, V = 1142.74(7) ų, Z = 1. The crystal structure consists of one-dimensional linear chain cations and dimeric anions. The copper centers in the anion possess distorted trigonal bipyramidal geometry, while Cu(2) has a distorted octahedral geometry in the cation. Coordinated water molecules in the one-dimensional chain form interionic hydrogen bonds with the oxygen atoms of the carboxylate of nta of the dimmer anion. These hydrogen bonds result in the formation of a two-dimensional network.     

Synthesis and Crystal Structure of {[Mn(H_2O)_4(3,3''''-?azpy)](3, 3''''-azpy)_3(PF_6)_2}_n

1 INTRODUCTION During the past few years, many one-, two- and three-dimensional coordination polymers have been generated from transition metal templates with rigid and flexible pyridyl-containing bidentate or multidentate spacers[1, 2]. Although in the past few years, increasing interest has been given to the coordination polymer of 4, 4?azobispyridine[3, 4] and some 3, 3?azobispyridine complexes[5, 6] were repor- ted three decades ago, no crystal structure of 3, 3?azpy complex has been…     

Synthesis, Structure and Characterization of Two-dimensional Network Copper Complex [Cu_3(nta)_2(azpy)_2(H_2O)_2]·6H_2O

ＩｎｔｒｏｄｕｃｔｉｏｎＣｒｙｓｔａｌｅｎｇｉｎｅｅｒｉｎｇｏｆｓｕｐｒａｍｏｌｅｃｕｌａｒａｒｃｈｉｔｅｃｔｕｒｅｓｓｕｓｔａｉｎｅｄｂｙｃｏｏｒｄｉｎａｔｅｃｏｖａｌｅｎｔｂｏｎｄｓｏｒｈｙｄｒｏｇｅｎｂｏｎｄｓｒｅｐｒｅｓｅｎｔｓａｒａｐｉｄｌｙｅｘｐａｎｄｉｎｇｆｉｅｌｄｔｈａｔｏｆｆｅｒｓｐｏ ｔｅｎｔｉａｌｆｏｒｄｅｖｅｌｏｐｍｅｎｔｏｆｎｅｗｃｌａｓｓｅｓｏｆｆｕｎｃｔｉｏｎａｌｓｏｌｉｄｓ .1,2 Ｔｈｅａｒｃｈｉｔｅｃｔｕｒｅｓｏｆｃｏｏｒｄｉｎａｔｉｏｎｐｏｌｙｍｅｒｓｃａｎｂｅ…     

一维链钴配位聚合物{[Co(H2O)4(3,3′-azpy)](3,3′-azpy)3(PF6)2}n的结构和性质的研究

The complex {[Co(H₂O)₄(3,3′-azpy)](3,3′-azpy)₃(PF₆)₂}_n(3,3′-azpy=3,3′-azobispyridine) has been synthesized and characterized. The crystal (C₄₀H₄₀F₁₂CoN₁₆O₄P₂, M_r=1157.75) belongs to the triclinic system, space group P1 with the following crystallographic parameters: a=10.759(2),b=11.012(2), c=23.207(4)?; α=85.330(10), β=83.470(10),γ=69.770(10)°;V=2560.6(8)?³,D_c=1.502g·cm^-3, μ(MoKα)= 0.498mm^-1,F(000)=1178,Z=2, and final R₁=0.0469, wR₂=0.1053 for observed reflections 5549 (I> 2.00σ(I)).The X-ray analysis reveals that cobalt(Ⅱ) cation coordination environment is a distorted octahedral geometry, the Co²⁺ ion is coordinated by four oxygen atoms of water in the equatorial plane, while the two nitrogen atoms of 3,3′-azpy occupy the axial positions. The complex forms a one-dimensional chain structure via 3,3′-azpy bridging ligand. The one-dimensional chain forms three-dimensional network by hydrogen bonds and π-π inter-actions.     

四种苯甲酰丙酮合铜和1，1，1-三氟-3-(2-噻吩基)丙酮合铜的偶氮二吡啶长链配合物的热分析研究

用热重法(TG)研究了4种苯甲酰丙酮合铜和1，1，1-三氟-3-(2-噻吩基)丙酮合铜的偶氮二吡啶一维长链聚合配位化合物在动态氮气气氛下的热行为，结合元素分析和能谱技术，确定了各步分解的组分，并讨论了其晶体结构与热性质的关系。应用新的非线性等转化率法，并结合其他方法考察了各步分解反应的属性，进行了动力学分析，并试对传统动力学方法的适用性进行了讨论。     

Photo-/Electroinduced Irreversible Isomerization of 2,2’-Azobispyridine Ligands in Arene Ruthenium(II) Complexes

Novel arene Ru^II complexes containing 2,2’-azobispyridine ligands were synthesized and characterized by using ¹H and ¹³C NMR spectroscopy, UV/vis spectroscopy, electrochemistry, DFT calculations and single-crystal X-ray diffraction. Z-configured complexes featuring unprecedented seven-membered chelate rings involving the nitrogen atom of both pyridines were isolated and were shown to undergo irreversible isomerization to the corresponding E-configured five-membered chelate complexes in response to light or electrochemical stimulus.     

Synthesis and Crystal Structure of Two One-dimensional Chain Copper Complexes [Cu(TTA)_2(4,4′-azpy)] and [Cu(TTA)_2(3,3′-azpy)]

IntroductionSelf assemblyofcoordinationpolymersfromthebasicbuildingblocksisofconsiderableinterestduetotheirintrigu ingdiversearchitecturesandpotentialapplicationsincatalysisandadvancedmaterialssuchasmagnetic ,optic ,andelec tronicmaterials .1 4 Thearchitecturesofcoordinationpolymerscanbereliablypredicted ,sincepreviouslyknownmetalcoor dinationenvironmentsarepropagatedintoone ,two ,andthree dimensionalmotifswithrigidmultitopicorganic“spac er”ligands .Thereactionofametalcomplexexhibitingtwovac…