Hydrothermal Synthesis and Crystal Structure of Iron Molybdophosphate Fe[Mo_6O_(12)(OH)_3(H_2PO_4)(HPO_4)_2(PO_4)]_2- [Fe(2,2′-bipy)(H_2O)_2]_2[Fe(2,2′-bipy)_3]_2·6H_2O

1 INTRODUCTION Organic-inorganic hybrid materials and polyoxo-metalates have received much attention because of their intriguing structural diversity and potential applications in molecular adsorption, ion exchange, heterogeneous catalysis and nanotech nology as well as in electrical, magnetic and photochemical areas[1, 2]. One of the important ad- vances in the design of new organic-inorganic hybrid materials is utilizing poly- oxometalates’ coordination ability to produce poly- oxoanio…     

Synthesis and Crystal Structure of [Zn(FcCOO)_2(2,2'-bipy)(H_2O)]_2·H_2O

A novel complex [Zn(FcCOO)2(2,2'-bipy)(H2O)]2·H2O (Fc = (η5-C5H5)Fe(η5-C5H4), 2,2'-bipy = 2,2'-bipyridine) has been synthesized and characterized by elemental analysis, IR and X-ray diffraction. It crystallizes in monoclinic system, space group P21/c with a = 6.8187(4), b = 21.7155(13), c = 19.7411(12) A, α = 90, β = 97.7420(10), γ = 90o, C64H58Fe4Zn2N4O11, Mr = 1413.28, V = 2896.4(3) A3, Dc = 1.620 g/cm3, Z = 2, F(000) = 1444, μ(MoKα) = 1.857 mm-1, R = 0.0523 and wR = 0.0982 for 3219 observed reflections (I > 2σ(I)). Structural analysis shows that the zinc atom is coordinated with three oxygen atoms from two ferrocenemonocarboxylates and one water molecule together with two nitrogen atoms from 2,2'-bipyridine, giving a distorted square-pyramidal coordination geometry. The complex molecules are linked to form an infinite one-dimensional chain by both intermolecular hydrogen bonds and π-π stacking interactions of the bipyridine rings.     

Hydrothermal Synthesis and Crystal Structure of [H_4As_8V_(14)O_(42)(H_2O)]·6H_2O

1 INTRODUCTION The chemistry of polyoxometalates continues to attract interest as a result of their realized and potential applications in diverse fields, such as cata- lysis, analysis, biochemistry, medicine and material science[1～3]. In the past few …     

Hydrothermal Synthesis and Crystal Structure of a Bivanadyl Capped Keggin Polyoxomet alate[Zn(2,2''''-bpy)_2(H_2O)]_2[HPMo_(12)O_(40)(VO)_2]

1 INTRODUCTION The design and synthesis of organic-inorganic hy-brid compounds are of great interest owing to theirextensive theoretical and practical applications in ca-talysis, medicine, analytical chemistry, nanotechno-logy, electrochromism, magnetism and photochemis-try[1～5]. In heteropolyoxometalate chemistry, a newadvance is the decoration of polyoxoanions with va-rious organic and transition metal complex moieties.In contrast to a large number of known organic andtransition-metal-s…     

Synthesis and Structure of Paramagnetic β-OctamolybdateComplex, [Fe(2,2''''bipy)_3]_2[Mo_8O_26]·6H_2O

1 INTRODUCTION The polyoxoanion-based inorganic and organo- metallic complexes, especially isopolymolybdates, have attracted considerable interest for their appli- cations in catalysis, sorption, clathration, magnetism and photochemistry[1]. Octamoly…     

Solvothermal Synthesis,Crystal Structure and Electrochemical Property of Complex [Co(p-MBA)_2(2,2′-bipy)(H_2O)]·(H_2O)

One novel complex [Co(p-MBA)2(2,2′-bipy)(H2O)]·(H2O) has been synthesized by the reaction of p-methylbenzoic acid with 2,2′-bipyridine in the solvent mixture of water and methanol. It crystallizes in triclinic,space group P1 with a=0.70479(14),b=1.1211(2),c=1.6718(3) nm,α=103.806(3),β=90.795(3),γ=104.207(3)o,V=1.2399(4) nm3,Mr=512.41,Dc=1.373 g/cm3,Z=2,F(000)=532,μ=0.733 mm-1,R= 0.0432 and wR=0.0957. The crystal structural analysis shows that the cobalt atom is coordinated with three oxygen atoms from two p-methylbenzoic acids and one water molecule and two nitrogen atoms from one 2,2′-bipyridine,forming a distorted square-pyramidal coordination geometry. The cyclic voltammetry behavior of the complex is also reported.     

多钼酸盐[4,4-′H_2bipy]_2 [β-Mo_8O_(26)]的水热合成和晶体结构

利用水热合成方法制备了化合物[4,4′-H2b ipy]2[-βMo8O26],用元素分析、X射线单晶衍射和电子顺磁共振对其结构进行了表征.结构解析表明标题化合物是由β型[Mo8O26]4-多阴离子与质子化的4,4′-联吡啶通过氢键作用形成的三维结构超分子化合物.     

Synthesis and Crystal Structure of [Ni(C_5H_2N_2O_4)(2,2''''bipy)(H_2O)_2]·H_2O

1 INTRODUCTION Orotic acid (H3dtpc), an important pyrimidine derivative as the effective precursor in the biosynthesis of pyrimidine base of nucleic acids in living organisms, plays a unique role in bioinorganic and pharmaceutical. Aside from the biological interest, orotic acid is also interesting in coordination chemistry. Its ketonic and enolic tautomers along with asymmetric geometry make it to be a very good versatile polydentate ligand[1~5]. The incorporation of metals into supram…     

Hydrothermal Synthesis and Structure of One New Polyoxottmgsate [Ni(trien)]_4[Ni_4(H_2O)_2(HPW_9O_(34))_2]·4H_2O

One new sandwich-type tetra-nickel substituted polyoxotungsate,[Ni(trien)]_4-[Ni_4(H_2O)_2(HPW_9O_(34))_2]·4H_2O(1,trien=triethylenetetramine),has been hydrothermally synthesized and characterized by IR,elemental analysis,TGA,and single-crystal X-ray diffraction analysis.Crystal data for l:triclinic,space group Pī with a=13.279(3),b.13.816(3),C=14.494(4)(A),α=95.403(1),β=113.173(4),γ=93.809(3)°,V=2418.0(10)(A)~3,Z=1 and Dc=3.861g/cm~3.X-ray crystallographic study shows that compound 1 is a relatively rare inorganic-organic hybrid polyoxo tungstate constructed from sandwich Ni-substituted polyoxo-anions and nickel complexes.     

Hydrothermal Synthesis and Structure of One New Polyoxotungsate [Ni(trien)]_4[Ni_4(H_2O)_2(HPW_9O_(34))_2]·4H_2O

One new sandwich-type tetra-nickel substituted polyoxotungsate,[Ni(trien)]4-[Ni4(H2O)2(HPW9O34)2]·4H2O(1,trien=triethylenetetramine),has been hydrothermally synthesized and characterized by IR,elemental analysis,TGA,and single-crystal X-ray diffraction analysis.Crystal data for 1:triclinic,space group P with a=13.279(3),b=13.816(3),c=14.494(4),α=95.403(1),β=113.173(4),γ=93.809(3)o,V=2418.0(10)3,Z=1 and Dc=3.861 g/cm3.X-ray crystallographic study shows that compound 1 is a relatively rare inorganic-organic hybrid polyoxo tungstate constructed from sandwich Ni-substituted polyoxo-anions and nickel complexes.     

Synthesis and Crystal Structure of an Organic-inorganic Complex [Hg(DMSO)_2(H_2O)]_2 [GeW_(12)O_(40)]·DMSO·H_2O

Hybrid organic-inorganic compounds have attracted increasing interest in recent years due to the possibility of combination of different characteristics of the compounds to get unusual structures, properties, or applications1. Polyoxometalates (POMs) whic…     

Synthesis and Crystal Structure of [Zn(FcCOO)2(2,2′-bipy)(H2O)]2·H2O

A novel complex [Zn(FcCOO)2(2,2′-bipy)(H2O)]2·H2O (Fc = (η5-C5H5)Fe(η5-C5H4), 2,2′-bipy = 2,2′-bipyridine) has been synthesized and characterized by elemental analysis, IR and X-ray diffraction. It crystallizes in monoclinic system, space group P21/c with a = 6.8187(4), b = 21.7155(13), c = 19.7411(12) (A), α = 90, β = 97.7420(10), γ = 90°, C64H58Fe4Zn2N4O11, Mr = 1413.28, V = 2896.4(3) (A)3, Dc = 1.620 g/cm3, Z = 2, F(000) = 1444, μ(MoKα) = 1.857 mm-1, R = 0.0523 and wR = 0.0982 for 3219 observed reflections (I ＞ 2σ(I)). Structural analysis shows that the zinc atom is coordinated with three oxygen atoms from two ferrocenemonocarboxylates and one water molecule together with two nitrogen atoms from 2,2′-bipyridine, giving a distorted square-pyramidal coordination geometry. The complex molecules are linked to form an infinite one-dimensional chain by both intermolecular hydrogen bonds and π-π stacking interactions of the bipyridine rings.     

Hydrothermal Synthesis and Crystal Structure of a New 2D Layer Compound [{Ni(en)_2}_2Sb_8V_(14)O_(42)]·5.5H_2O

A new compound based on polyoxovanadate [{Ni(en)2}2Sb8V14O42]·5.5H2O(en=ethylenediamine)(1) was synthesised hydrothermally as black rhombus crystals.Compound 1 crystallized in the monoclinic system with space group P21/n,Z=4,a=1.46953(9) nm,b=1.28623(8) nm,c=1.76008(11) nm,β=105.7230(10)°.In the asymmetric unit,cluster {Sb8V14O42} can be considered as an Sb derivative of the {V18O42} unit.Each {Sb8V14O42} cluster as a building block interconnected to four other neighboring units by {Ni(en)2} bridging groups...     

Hydrothermal Synthesis and Structure of [Mn(C_8H_5NO_4)·H_2O]_n·2nH_2O

1 INTRODUCTION The self-assembly of organic-inorganic hybrid ma- terials is an intriguing area, which is yielding new generations of supramolecular architectures[1, 2]. Coor- dination by transition metals with multifunctional ligands is one of the main design principles. As a rigid multi-dentate ligand, 5-aminoisophthalic acid (AIP) has received considerable attention owing to the variety of bridging abilities[3~8]. It can engage in three types of intermolecular interactions: (1) M-L b…     

Synthesis and Crystal Structure of [Zn(FcCOO)2(2,2′-bipy)(H2O)]2·H2O

A novel complex [Zn(FcCOO)2(2,2′-bipy)(H2O)]2·H2O (Fc = (η5-C5H5)Fe(η5-C5H4), 2,2′-bipy = 2,2′-bipyridine) has been synthesized and characterized by elemental analysis, IR and X-ray diffraction. It crystallizes in monoclinic system, space group P21/c with a = 6.8187(4), b = 21.7155(13), c = 19.7411(12) (A), α = 90, β = 97.7420(10), γ = 90°, C64H58Fe4Zn2N4O11, Mr = 1413.28, V = 2896.4(3) (A)3, Dc = 1.620 g/cm3, Z = 2, F(000) = 1444, μ(MoKα) = 1.857 mm-1, R = 0.0523 and wR = 0.0982 for 3219 observed reflections (I ＞ 2σ(I)). Structural analysis shows that the zinc atom is coordinated with three oxygen atoms from two ferrocenemonocarboxylates and one water molecule together with two nitrogen atoms from 2,2′-bipyridine, giving a distorted square-pyramidal coordination geometry. The complex molecules are linked to form an infinite one-dimensional chain by both intermolecular hydrogen bonds and π-π stacking interactions of the bipyridine rings.     

Synthesis and Crystal Structure of Complex [Pb(qina)_2(DMSO)]·H_2O

A novel complex [Pb(qina)2(DMSO)]·H2O was synthesized,of which qina-is the quinaldic acid radical and DMSO the dimethyl sulfoxide. Elemental analysis,IR spectra,and X-ray single-crystal diffraction were carried out to determine the composition and crystal structure. This complex belongs to monoclinic system,space group P121/n1,with a=7.1553(17),b=17.543(2),c=17.306(2) ,β=91.671(4)°,C22H20N2O6PbS,Mr=647.65,Z=4,V=2171.5(6) 3,Dc=1.981 g/cm3,μ=7.908 mm-1,F(000)=1248,–9≤h≤6,–23≤k≤19,–22≤l≤22,R=0.0221 and wR= 0.0488. Weak coordinate bond is formed between oxygen atom in DMSO and Pb(Ⅱ ) . There are also weak interactions,such as π-π interaction,hydrogen bonds and so on,among the complex molecules.     

Synthesis and Crystal Structure of K_3[HO{VO(O_2)_2}_2]·H_2O

1 INTRODUCTION Though the investigation on chemistry of tran- sition metal-peroxy complexes has been extensively carried out, up to now, only four structures of purely inorganic dimeric peroxovanadates have been deter- mined by single-crystal X-ray meth…     

Unprecedented α-Octamolybdate Derivative Containing Hexad-track Cu―bpe Chains,2{[Cu(bpe)]_6[α-Mo_8O_(26)]_(3/2)}·[Cu(bpe)]_3·3H_2O

A new inorganic-organic hybrid constructed from α-octamolybdate polyoxometalates modified by hexad- track Cu―bpe chains, 2{[Cu(bpe)]6[α-Mo8O26]3/2}·[Cu(bpe)]3·3H2O[1, bpe=bis(4-pyridyl)ethylene], has been synthesized and structurally characterized. X-Ray diffraction analysis reveals that each α-octamolybdate cluster links six transition metal complex chains and the title compound has represented the highest connective number of M―N chains modified octamolybdate POMs to date. Note that there are two crystall...     

Hydrothermal Synthesis, Crystal Structure and Fluorescent Property of a Keggin Polyoxometalate [Cu~I(2,2'-bipy)_2]_3[PW~(Ⅵ)_(12)O_(40)]

1 INTRODUCTION Polyoxometalates (POMs) have become a focus of contemporary chemical research due to their structure diversity and potential applications in many areas, such as catalysis[1], photochemistry[2], magnetism[3], etc. In this field, POMs containing Keggin moieties have received considerable attention. A large num- ber of efforts have been given to the decoration of POMs with various transition metal complexes and organic moieties[4]. To date, several compounds con- taining …     

Synthesis and Crystal Structure of [{Mn(IBG)(2,2'-bipy)(H_2O)}·4H_2O]_n

A novel MnⅡ complex [{Mn(IBG)(2,2'-bipy)(H2O)}·4H2O]n 1(H2IBG=isophtha-loylbisglycine and 2,2'-bipy = 2,2'-bipyridine) has been synthesized and characterized by singlecrystal X-ray diffraction,elemental analysis,IR spectra and thermogravimetric analysis.It crystallizes in monoclinic,space group P21/n,with a=13.667(2),b=14.045(2),c=14.195(2),β=101.483(3)°,V=2670.1(7)3,Z=4,C22H26N4O11Mn,Mr=577.41,Dc=1.436 g/cm3,F(000)=1196.0,μ(MoKα)=0.558 mm-1,the final R=0.0578 and wR=0.1460 for 2974 observed reflections with I2σ(I).In the structure,the MnⅡ atom is coordinated in a distorted octahedral environment arranged by one water molecule,one 2,2'-bipy ligand and two IBG ligands.