Syntheses and Crystal Structures of Two Complexes with 3-（3-Pyridyl）acrylic Acid

1 INTRODUCTION A recent feature in the development and progress of chemical research is the concern for molecular assemblies, ensembles, and all of structural aggre- gates[1]. The self-assembly of transition metal ions and N-containing organic ligands has been proven a popular approach for the construction of supramo- lecular architecture[2～7]. 3-(3-Pyridyl)acrylic acid is an excellent ligand, not only due to its prolific coor- dination sites but also to its potential hydrogen bon- ding…     

Syntheses and Crystal Structures of Two Novel Cobalt(Ⅱ) Complexes with 2-Amino-5-substituted-1,3,4-thiadiazole as Ligands

Two novel cobalt(Ⅱ) compounds were obtained and characterized by X-ray single-crystal diffraction,IR,1H NMR and elemental analysis.Compound 1 crystallizes in monoclinic,space group P21/n,with a = 18.046(4),b = 11.335(3),c = 19.157(5) ,β = 92.707(3)o,Z = 4,V = 3914.4(16) 3,Mr = 968.56,Dc = 1.644 g/cm3,μ = 1.378 mm-1,F(000) = 1960,the final R = 0.0367 and wR = 0.0895.The crystal of compound 2 is of monoclinic,space group P21/c with a = 8.7253(10),b = 10.9031(13),c = 18.235(2) ,β = 93.2210(10)o,Z = 4,V = 1732.0(3) 3,Mr = 464.21,Dc = 1.780 g/cm3,μ = 1.560 mm-1,F(000) = 932,the final R = 0.0322 and wR = 0.0743.     

Syntheses and Crystal Structures of Four Cobalt Supramolecular Architectures with Hmtyaa Ligand

Four cobalt supramolecular architectures with Hmtyaa(2-(5-methyl-1,3,4-thiadiazol-2-ylthio)acetic acid) ligand have been synthesized.[Co(mtyaa)2(H2O)4]·4(H2O)(1):triclinic,space group P1 with a = 6.7537(18),b = 8.591(2),c = 10.615(3) ,α = 96.495(4),β = 99.955(5),γ = 103.615(5)°,V = 581.9(3) 3,Z = 1,Mr = 581.52,Dc = 1.659 g/m3,μ = 1.158 mm-1,F(000) = 301,Rint = 0.0557,R = 0.0377 and wR = 0.1056 for 1854 observed reflections with Ⅰ 2σ(Ⅰ);{[Co(4,4'-bipy)(H2O)4]·2(mtyaa)·2(H2O)}n(2):triclinic,space group P1 with a = 7.669(2),b = 8.840(3),c = 11.521(4) ,α = 79.912(5),β = 73.954(5),γ = 86.612(6)°,V = 738.9(4) 3,Z = 1,Mr = 701.67,Dc = 1.577 g/m3,μ = 0.924 mm-1,F(000) = 363,Rint = 0.0636,R = 0.0498 and wR = 0.1311 for 2155 observed reflections with Ⅰ 2σ(Ⅰ);{[Co(4,4'-bipy)(mtyaa)(H2O)3](mtyaa)·2(H2O)}(3):monoclinic,space group Pc with a = 7.7832(17),b = 11.527(3),c = 31.483(7) ,β = 91.952(4)°,V = 2822.9(11) 3,Z = 4,Mr = 683.65,Dc = 1.609 g/m3,μ = 0.963 mm-1,F(000) = 1412,Rint = 0.0758,R = 0.0609 and wR = 0.1095 for 5841 observed reflections with I 2σ(I);{[Co(bpe)(mtyaa)2(H2O)2]}n(4):monoclinic,space group C2/c with a = 19.290(11),b = 12.027(7),c = 14.865(8) ,β = 125.648(8)°,V = 2802(3)3,Z = 4,Mr = 657.66,Dc = 1.559 g/m3,μ = 0.959 mm-1,F(000) = 1356,Rint = 0.0456,R = 0.0332 and wR = 0.0985 for 2299 observed reflections with Ⅰ 2σ(Ⅰ).     

Syntheses and Crystal Structures of Cobalt(II) Chloride Complexes of 1,3-Bis(pyridyl-4-ylthio)propan-2-one

1 INTRODUCTION Widespread interest of metal-organic coordination compounds has been stirred by their intriguing struc- tural topologies and promising properties[1]. Al- though structural motifs of coordination compounds are mainly defined by metal ions’ coordination pre- ferences and chemical structures of organic ligands including the molecular angle, length and relative orientation of the donor groups[2], numerous other factors such as solvent systems, concentration, coun- terions and e…     

From Chain to Layer Structure: ZnⅡ Coordination Polymers Derived from Diphenic Acid

Three ZnⅡ coordination polymers, [Zn(py)(H2O)(dpa)]n 1, [Zn2(4,4'-bipy)2(dpa)2]n 2 and [Zn(bpe)(H2O)2(Hdpa)2]n 3 (py = pyridine, H2dpa = diphenic acid, 4,4'-bipy = 4,4'-bipyridine,bpe = 1,2-bis(4-pyridyl)ethane), were synthesized and characterized by X-ray single-crystal structure determination. 1 crystallizes in monoclinic, space group C2/c with a = 23.014(3), b = 8.7184(13), c = 18.091(3) (A), β = 95.964(3)°, V = 3610.2(9) (A)3, Z = 8, C19H15NO5Zn, Mr = 402.69,Dc= 1.482 g/cm3, F(000) = 1648, μ(MoKα) = 1.389 mm-1, the final R = 0.0431 and wR = 0.1120 for 4239 observed reflections with I ＞ 2σ(Ⅰ). 2 crystallizes in orthorhombic, space group Fddd with a = 23.1613(5), b = 24.0324(6), c = 29.4785(1) (A), V= 16408.4(5) (A)3, Z = 32, C24H16N2O4Zn, Mr = 461.76, Dc= 1.495 g/cm3, F(000) = 7552, μ(MoKα) = 1.232 mm-1, the final R = 0.0542 and wR = 0.1724 for 3632 observed reflections with I ＞ 2σ(Ⅰ). 3 crystallizes in orthorhombic, space group C2/c with a = 19.142(4), b = 13.862(3), c = 15.625(3) (A), β = 122.404(3)°, V = 3500.3(11) (A)3, Z = 8,C20H17NO5Zn0.50, Mr = 384.03, Dc= 1.457 g/cm3, F(000) = 1592,μ(MoKα) = 0.766 mm-1, the final R = 0.0400 and wR = 0.1210 for 4024 observed reflections with I ＞ 2σ(Ⅰ).     

Syntheses and Crystal Structures of Two Novel Spiro Compounds Containing 1,5-Dioxaspiro[5.5]undecane-2,4-dione

Two novel spiro compounds,3-benzylidene-1,5-dioxaspiro[5.5]undecane-2,4-dione 1 and 3-(2-fluorobenzylidene)-1,5-dioxaspiro[5.5]undecane-2,4-dione 2,have been synthesized and characterized by X-ray single-crystal diffraction,IR and elemental analysis.Compound 1 belongs to the monoclinic system,space group P21/n with a=12.326(3),b=5.6420(11),c=20.089(4),β= 101.79(3)o,C16H16O4,Mr= 272.29,V=1367.7(5)3,Z=4,Dc=1.322g/cm3,F(000)=576,μ(MoKa)=0.095 mm-1,the final R=0.0420 and wR=0.1159.Compound 2 is of monoclinic system,space group P21/n with a=12.283(3),b=5.6367(11),c=20.055(4),β=102.00(3)o,C16H15FO4,Mr=290.28,V=1358.2(5)3,Z=4,Dc=1.420 g/cm3,F(000)=608,μ(MoKa)=0.110 mm-1,the final R=0.0353 and wR=0.0860.     

Syntheses and Crystal Structures of Sm(OAr)2(THF)3·THF and Sm(OAr)2(DME)2 (Ar = C6H2-tert-Bu3-2,4,6)

Reaction of SmI2(THF)x with 2 equivalents of NaOAr (Ar = C6H2-tert-Bu3-2,4,6)1,2-dimethoxyethane (DME) leads to the ligand-exchange reaction, and a DME-solvated complex of Sm(Oar)2(DME)2 2 was obtained. Complex 1 crystallizes in monoclinic, space group P21/c with a =10.366(5), b = 33.024(15), c = 16.123(7) (A), β= 93.197(8)°, V= 5511(4) A3, Z= 4, C52H9oO6Sm, Mr = 961.59, Dc = 1.159 g/cm3, F(000) = 2048,μ(MoKα) = 1.107 mm-1, R = 0.0844 and wR = 0.1401for 4694 observed reflections. Complex 2 crystallizes in monoclinic, space group C2/c with a =27.222(5), b = 10.6140(19), c = 17.398(4) (A), β = 110.245(3)°, V = 4716.4(16) (A)3, Z = 4,C44H78O6Sm, Mr = 853.41, Dc = 1.202 g/cm3, F(000) = 1808,μ(MoKα) = 1.285 mm-1, R = 0.0361and wR = 0.0830 for 5210 observed reflections.     

Crystal Structures of Schiff Base from 4-Aminoantipyrine and Pyridine- 2-carboxaldehyde and Its Perchlorate

The Schiff base pyridine-2-carboxaldehyde-4-aminoantipyrine （CI7H16N4O 1） and its perchlorate （C17H17N4O·ClO4 2） have been prepared and characterized by elemental analysis, IR spectra and single-crystal X-ray crystallography analysis. Both 1 and 2 crystallize in the monoclinic system, space group P21/c. For 1, a = 8.6820（12）, b = 24.934（3）, c = 7.0064（10） A,, β= 97.942（3）°, V = 1502.2（4） A^3, Z = 4, Dc = 1.293 g/cm^3, F（000） = 616,μ = 0.084 mm^-1, the final R = 0.0592 and wR = 0.1244. For 2, a = 5.9302（2）, b = 20.347（7）, c = 14.663（6） A, β= 90.200（9）°, V= 1769.201） A^3, Z = 4, Dc = 1.475 g/cm^3, F（000） = 816, μ = 0.254 mm^-1, the final R = 0.0533 and wR = 0.0819. As expected, both molecular structures of 1 and 2 adopt a trans configuration about the central C=N double bond. 2 is an ionic compound with the protonation at N（1） of pyridine-2-carboxaldehyde-4- aminoantipyrine.     

Syntheses and Crystal Structures of(H_3O)(C_3H_5N_2)[Mn(OH)_6Mo_6O_(18)]·3.5H_2O and (H_3O)_3[Co(OH)_6Mo_6O_(18)]·7H_2O

1 INTRODUCTION Polyoxometalates, a rich and remarkable classof inorganic cluster system[1], exhibit diverse appli-cation possibilities due to their topological and elec-tronic properties, ranging from their well-known roleas reagents in analytical, b…     

Syntheses and Crystal Structures of Two Cyano-bridged Bimetallic Complexes [Ce(DMSO)4(H2O)3Fe(CN)6]·H2O and [La(DMSO)4(H2O)3Co(CN)6]·H2O (DMSO = Dimethylsulfoxide)

Two new bimetallic cyano-bridged complexes [Ce(DMSO)4(H2O)3Fe(CN)6]·H2O 1 and [La(DMSO)4(H2O)3Co(CN)6]·H2O 2 have been prepared by the ball milling reaction method and structurally characterized by X-ray single-crystal structure analyses. Crystallographic data for 1:C14H32CeFeN6O8S4, Mr = 736.67, monoclinic, space group P21/n, a = 14.952(1), b =13.7276(9), c = 15.392(1) (A), β = 108.288(1)°, V = 2999.6(4) (A)3, Z = 4, Dc= 1.631 g/cm3,μ =2.304 mm-1, F(000) = 1480, R = 0.0593 and wR = 0.1611; and those for 2: C14H32CoLaN6O8S4,Mr=738.54, monoclinic, space group P21/n, a = 14.945(3), b = 13.731(3), c = 15.300(3) (A), β=107.806(1)°, V= 2989.3(11) (A)3, Z = 4, Dc = 1.641 g/cm3,μ = 2.288 mm-1, F(000) = 1480, R =0.0383 and wR = 0.1132. In both complexes the lanthanide ion is eight-coordinated in a square antiprism arrangement, and the Fe(Ⅲ) or Co(Ⅲ) ion in a nearly regular octahedral environment.The [LnM(CN)6(DMSO)4(H2O)3]·H2O (Ln = Ce and M = Fe for 1; Ln = La and M = Co for 2)species are held together via hydrogen bonds by coordinated water molecules, lattice water molecules and nitrogen atoms of cyanide groups to form a three-dimensional framework.     

pH-Dependent Assembly of Hybrid Materials Based on Molybdates and Copper/imidazole Complexes

Three novel inorganic-organic hybrid materials, [Cu（imi）2（H2O）（MoO4）]n 1, [Cuz（imi）3（MoO4）E]n.nH2O 2 and [Cu3（imi）2（OH）2（MoO4）2]n 3 （imi = imidazole）, were synthesized and characterized by X-ray single-crystal structure determination. 1 crystallizes in orthorhombic, space group Pca21 with a = 13.382（4）, b = 8.527（2）, c = 9.622（3）A, V = 1098.0（5） A^3 Z = 4, C6H10CuMoN4O5, Mr = 377.66, Dc = 2.285 g/cm^3, F（000） = 740,μ（MoKa） = 3.095 mm^-1, the final R = 0.0256 and wR = 0.0722 for 1896 observed reflections with I 〉 2σ（I）. 2 crystallizes in monoclinic, space group P2t/c with a= 11.170（2）, b = 7.8244（15）, c = 22.631（4）A, β = 115.790（7）°, V = 1780.9（6）A^3 Z = 4, C9H14Cu2Mo2N6O9, Mr = 669.24, Dc= 2.496 g/cm^3, F（000）=1295,μ（MoKa） = 3.792 mm^-1, the final R = 0.0225 and wR = 0.0615 for 3838 observed reflections with I 〉 2σ（I）. 3 crystallizes in monoclinic, space group P21/c with a = 5.5599（19）, b = 23.771（8）, c = 7.3044（18）A , β = 129.356（16）°, V = 746.5（4）A^3, Z = 2, C6H10Cu3Mo2N4O10, Mr = 680.71, Dc = 3.029 g/cm^3, F（000） = 650,μ（MoKa） = 5.900 mm^-1, the final R = 0.0215 and wR = 0.0524 for 1620 observed reflections with I 〉 2σ（I）.     

Syntheses and Crystal Structures of (H3O)(C3H5N2)[Mn(OH)6 Mo6O18]·3.5H2O and (H3O)3[Co(OH)6Mo6O18]·7H2O

The crystals of the title compounds (H3O)(C3H5N2)[Mn(OH)6Mo6O18]·3.5H2O 1 and (H3O)3[Co(OH)6Mo6O18]·7H2O 2 have been prepared and structurally determined by X-ray single-crystal diffraction. Compound 1 crystallizes in monoclinic, space group C2/c with a = 21.5018(9), b = 10.9331(5), c = 11.8667(5)A,β = 95.3570(10)o, V = 2777.5(2)A3, Z = 4, Dc = 2.802 g/cm3, Mr = 1171.80,μ(MoKα) = 3.173 mm-1, F(000) = 223, the final R = 0.0458 and wR = 0.1041 for 2093 observed reflections (I>2σ(I)); Compound 2 crystallizes in monoclinic, space group P21/c with a = 11.4042(12), b = 10.9481(11), c = 11.6722(12)A, β= 99.948(2)o, V = 1435.4(3)A3, Z = 2, Dc = 2.794 g/cm3, Mr = 1207.80,μ(MoKα) = 3.223 mm-1, F(000) = 1160, the final R = 0.0544 and wR = 0.1066 for 1906 observed reflections (I > 2σ(I)). Both compounds 1 and 2 adopt the Anderson structure, in which the anion is of centrosymmetry and formed by six octahedral edge-sharing MoO6 units surrounding the central MO6 (M = Mn or Co) octahedron.     

From Chain to Layer Structure: Zn~(II) Coordination Polymers Derived from Diphenic Acid

1 INTRODUCTION The rational design and synthesis of metal-organic coordination polymers have generated considerable interest in supramolecular chemistry and material science owing to their intriguing structural diver- sities and potential applications as functional mate- rials[1～3]. Up to now, some structural motifs with specific topologies and functions have been con- structed through rational combination of organic li- gands containing appropriate coordination sites and metal ions beari…     

Syntheses, Crystal Structures and Magnetism of Two New Coordination Polymers [Ni（bix）2Cl2]n and [Co（bix）Cl2]n

The self-assembly reactions of MIICl2 (M = Ni, Co) with the flexible bix ligand [bix = 1,4-bis(imidazole-1-ylmethyl)benzene] yielded a 2D network [NiII(bix)2Cl2]n 1 and a 1D chain [CoII(bix)Cl2]n 2. Their crystal structures have been determined by X-ray single-crystal diffraction analysis. Complex 1 characters a two-dimensional grid-type structure and crystallizes in monoclinic, space group P21/c with a = 7.7231(7), b = 12.7787(9), c = 13.9374(13) , β = 105.419(4)o, C28H28Cl2N8Ni, Mr = 606.19, Ζ = 2, V = 1326.0(2) 3, Dc = 1.518 g/cm3, μ = 0.969 mm-1, F(000) = 628, R = 0.0429 and wR = 0.0783 for 2503 observed reflections (I > 2σ(I)). Compound 2 is a one-dimensional chain and crystallizes in orthorhombic, space group Pbca with a = 11.3696(6), b = 10.2128(6), c = 14.4943(9) , C14H14Cl2CoN4, Mr = 368.12, Z = 4, V = 1683.01(17) 3, Dc = 1.453 g/cm3, μ = 1.334 mm-1, F(000) = 748, R = 0.0317 and wR = 0.0800 for 1778 observed reflections (I > 2σ(I)). Magnetic properties of the title complexes were also investigated.     

Syntheses and Crystal Structures of Two 3D Zinc(II) Compounds Involving Coordination and Hydrogen Bonds

1 INTRODUCTION Self-assembly through coordination and hydrogen bonds has been proved to be a powerful tool for con- structing functional organic crystalline materials[1~4]. Except for the important role of H-bonds in the sta- bilization of structures, hydrogen bonding groups namely hydroxyl, amide groups in adjacent coor- dination polymeric chains or discrete lamellas can form hydrogen bonds, which allow for the assembly of well-formed crystalline solid[5, 6]. Our recent inte- rest is foc…     

Hydrothermal Synthesis, Crystal Structure and Photoluminescent Property of a Novel Complex [Zn（OHCT）（1,2-BDC）]_n

A novel ligand 11-oxa-4,5,9,10,12,13-hexaaza-cyclopenta [b] triphenylene (OHCT) and its coordination polymer [Zn(OHCT)(1,2-BDC)]n 1 (1,2-BDC = 1,2-benzenedicarboxylate) were synthesized and characterized. Crystallographic data for OHCT: C14H6N6O5, Mr = 274.25, monoclinic, space group P21/c, a = 10.755(3), b = 11.710(4), c = 9.516(3) , β = 108.457(4)o, V = 1136.9(6) 3, Dc = 1.602 g/cm3, μ(MoKα) = 0.111 mm-1, F(000) = 560, Z = 4, the final R = 0.1534 and wR = 0.39709. Crystallographic data for 1: C22H10ZnN6O5, Mr = 503.73, triclinic, space group P , a = 6.1411(5), b = 10.9111(9), c = 14.1925(1) , α = 89.1830(1), β = 79.3030(1), γ = 84.6350(1)o, V = 930.36(1) 3, Dc = 1.798 g/cm3, μ(MoKα) = 1.376 mm-1, F(000) = 508, Z = 2, the final R = 0.0323 and wR = 0.0789. 1 has been obtained by using hydrothermal synthesis and characterized by elemental analysis, IR spectrum, thermal analysis, fluorescence spectrum and single-crystal X-ray diffraction. In complex 1, the zinc atom is five-coordinated with three carboxylate oxygen atoms from three different 1,2-BDC ligands and two nitrogen atoms from one OHCT ligand, showing a distorted trigonal bipyramidal configuration.     

Syntheses and Crystal Structures of Sm(OAr)+2(THF)+3·THF and Sm(OAr)_2(DME)_2 (Ar =C_6H_2-tert-Bu_3-2,4,6)

1 INTRODUCTION The chemistry of divalent lanthanocenes has de- veloped rapidly. Attempts to extend the chemistry beyond the traditional realm of the lanthanocenes have led to the syntheses and structural characteri- zations of a number of lanthanide (II) complexes bearing various ligand systems. Aryloxide ligands have been attractive for their strong bonds with lan- thanide atoms and readily steric modification by the choice of substituents. A series of divalent lantha- nide aryloxides …     

Syntheses and Crystal Structures of Two Co(II) Coordination Polymers with 4,4''''-(Hexafluoroisopropylidene)bis(benzoic acid)

Two new one-dimensional zigzag chain coordination polymers,[Co(hfipbb)(2,2'-bpy)(H2O)2]n 1 and [Co(hfipbb)(1,10-phen)(H2O)]n 2,have been synthesized under hydrother-mal reactions from CoCl2.6H2O,4,4'-(hexafluoroisopropylidene)bis(benzoic acid) and 2,2' -bipyridine or 1,10-phenanthroline ligands,respectively. Single-crystal X-ray analyses revealed that the zigzag chains of 1 and 2 are linked into three-dimensional supramolecular networks by both O-H···O hydrogen-bonds and π···π stacking interactions. Crystal data for 1:C27H20CoF6N2O6,Mr=641.38,orthorhombic,space group Pnna,a=9.3820(19),b=27.366(6),c=10.106(2) ,V=2594.8(9) 3,Z=4,Dc=1.642 g/cm3,F(000)=1300,μ=0.752 mm-1,R=0.0311 and wR=0.0924. Crystal data for 2:C29H18CoF6N2O5,Mr=647.38,monoclinic,space group P21/n,a=7.7626(16),b=29.446(6),c=11.281(2) ,β=93.98(3)°,V=2572.3(9) 3,Z=4,Dc=1.672 g/cm3,F(000)=1308,μ=0.757 mm-1,R=0.0403 and wR=0.0820.     

Synthesis and Structure of a Titanocene-ferrocenyl Complex

A titanocene-ferrocenyl complex, （5-ferrocenyl-2-hydroxybenzenecarboxylato- O,O′）-bis（methylcyclopentadienyl）titanium（IV） 4, and an unexpected ionic complex, [C7H8NO3]- [（C5H5）Fe（C5H4）SO3]·H2O3 were synthesized and characterized by IR, ^1H NMR and elemental analysis. Compound 3 is of triclinic, space group P1 with a = 5.954（2）, b = 13.208（5）, c = 13.252（5） A, α = 60.993（7）,β = 84.342（8）,γ = 86.933（8）°, Z = 2, V = 906.8（6）A^3, Dc = 1.601 g/cm^3, μ（MoKα） = 0.987 mm^-1, F（000） = 452, the final R = 0.0647 and wR = 0.1333 for 2311 observed reflections （I 〉 2σ（I））. Compound 4 belongs to the monoclinic system, space group P2 1/c with α = 14.3310（9）, b = 12.5065（8）, c = 12.9406（10） A, β = 95.101（4）°, Z = 4, V = 2310.2（3） A^3, Dc = 1.513 g/cm^3, μ（MoKα） = 1.004 mm^-1, F（000） = 1088, the final R = 0.0461 and wR = 0.1048 for 2112 observed reflections （1 〉 2σ（I））.     

Syntheses and Crystal Structures of [Ni(L)_2(NCS)_2] and [Co(L)_2(NCS)_2](L=Azobis(2-pyridine)

1 INTRODUCTION The synthesis of new organic-inorganic hybrid compounds is a relatively new research area that has developed rapidly in the last several years[1]. Bische- late ligand[2, 3], such as azobis(2-pyridine), is a novel tetradentate ligand expect…