CRYSTAL STRUCTURE OF ORGANOLANTHANIDE COMPLEX [Li~+(DME)_3]_2[(CpNd)_4(μ_2-CH_3)_2(μ_4-O)(μ_2-Cl)_6]~(2-)

<正> The crystal and molecular structure of [Li+(DME)3]2[(CpNd)4 (μ2-CH3)2(μ4-O) (μ2-Cl)6]2~was determined from single crystal X-ray diffraction. The complex crystallizes in the monoclinic space group P21/n with lattice parameters a= 14. 614(5), b= 18. 683 (5),c= 24. 595 (6) A, β = ,91-85(2)°, V = 6712(3) A3,2 = 4,DC = 1. 63g/cm3,F(000) = 3256,Mr=1650. 85. The structure was solved by direct methods and Fourier techniques and refined by least-squares to a final R=0. 047,RW = 0. 049 for 3761 with I>3σ(I). The result revealed that the anion [(CpNd)4(μ4-O) (μ2-Cl)6(μ2-CH3)2]2- is composed of four neodymium (Ⅲ) atoms bridged by six Cl atoms, two methyl groups and one oxygen atom, and every Nd is bonded to a cyclopentadienyl group. The four Nd atoms form a distorted tetrahedron. The cations are composed of two Li+(DME)3 with average Li-O distance of 2. 120(40) A.     

MOLECULAR STRUCTURE OF ORGANOLANTHANIDE COMPLEX [Li(THF)_4]_2[{ (η~5-CH_3C_5H_4)NdCl(μ_2-Cl)NdCl_2(η~5-CH_3C_5H_4)}_2(μ_4-O)]

<正> The crystal structure of the complex [Li(THF)4]2[{(η5-CH3C5H4)Nd-Cl(μ2-Cl)NdCl2(η5-CH3C5H4)}2(μ4-O)] has been determined by X-ray diffraction technique. The crystal is monoclinic of space group C2/c with a = 22. 740(7) ,b= 18. 319 (6),c=18. 330(6) A,β=93. 04(3)°,V = 7624. 93A3,Dc= 1. 55g/cm3,Z = 4,F(000) = 2800,μ=15. 02cm-1. The complex is consisted of two [Li(THF)4]+cations and one [{(η5-CH3C5H4)NdCl(μ2-Cl)NdCl2(η5-CH3C5H4)}2(μ4-O)]2-dianion. The two units [Cη5-CH3C5H4)NdCl(μ2-Cl)NdCl2(η5-CH3C5H4)] in the tetra nnclear-neodymium dianion are connected by a μ4-O bridge with the average Nd -μ4-O 2. 36(1) A ,Nd -C(ring) 2. 76(3)A,Nd-Cl 2. 823(7)A and Nd-μ2-Cl 2. 798(7)A.     

RESEARCH ON TRINUCLEAR MOLYBDENUM CLUSTER COMPOUNDS——CRYSTAL AND MOLECULAR STRUCTURE OF (Et_4N)_2[Mo_3(μ_3-O)(μ_3-Cl)(μ_2-Cl)_3Cl_6]·EtOH

The title crystal belongs to the monoclinic system. The space group is P2_1/c with unit cell parameters: a=11.379(3), b=20.766(2), c=14.487(3), β=91.49(2)°, V=3519(2)~3Z=4, D_c=1.819g.cm~(-3), D_0=1.81g.cm~(-3). The crystal structure was solved by the heavy atom method and difference Fourier synthesis and refined by the full-matrix least-squares to a final R factor of 0.040 based on 3261 unique reflections with intensities I≥3σ(I). The structure consists of two sots of tetraethylammonium cations and trinuclear Me cluster anions. In the cluster anion the three Mo atoms form an isosceles triangle with Mo-Mo distances of 2.601(1), 2.608(1), 2.642(1), respectively, showing a strong bonding interaction between the metal atoms. One μ_3-O atom and one μ_3-Cl atom are situated above and below the triangle respectively, binding the three Me atoms to form a triangular bipyramidal cluster core. Each pair of Mo atoms is bridged further by a μ_2-Cl atom situated on the Mo_3 triangular plane. In addition, each     

CRYSTAL STRUCTURE OF ORGANOLANTHANIDE [{Li(THF)_2}_2 (μ-Cl)_4(η~5-C_5H_5)Pr(THF)]

<正> The title complex crystallizes in the orthorhombic space group Pna21 with Mr = 570. 8, a = 16. 927(6), b = 18.942(7), c=10. 618(5)(?) and Z = 4. The structure was solved by Patterson and Fourier techniques and refined by block-diagonal least squares techniques to R = 0. 090 and Rw = 0. 093 for 1553 reflections with I>1. 5σ(I). The Pr3+ ion is bonded to five carbon atoms of cyclopentadi-enyl ring, four μ-chlorine atoms and one oxygen atom of THF in an octahedral geometry with the Pr-C distances in the range 2. 6.7 - 2. 79(?)(av. 2. 76(?)) , the Pr-Cl distances in the range 2. 81 - 2. 92(?) (av. 2. 86(?)) and the Pr -O distance of 2. 51 (?). Each Li+ ion is coordinated by two μ-chlorine atoms and two oxygen atoms from THF in a tetrahedral geometry with the Li-Cl distances in the range 2. 24 - 2. 61(?) (av. 2. 43(?)) and the Li -O distances in the range 1. 86-1. 94(?)(av. 1. 91(?)). The Pr atom and the two Li atoms are bridged asymmetrically by the chlorine atoms.     

Syntheses of (C_5H_9C_5H_4)_2LnCl(THF)_n (Ln=Nd, Sm, Er, Yb) and crystal structure of [(C_5H_9C_5H_4)_2-LnCl(THF)_n]_2(Ln=Sm, n=1; Ln=Er, n=0)

Reactions of lanthanoid trichlorides with sodium cyclopentylcyclopentadienyl in THFafford bis(cyclopentylcyclopentadienyl) lanthanoid chloride complexes (C_5H_9C_5H_4)_2LnCl(THF)_n (Ln=Nd, Sm, n=1; Ln= Er, Yb, n= 0). The compound [CP'_2SmCl(THF)]_2 (2) (Cp' =cyclopentylcy-clopentadienyl) crystallizes from mixed solvent of hexane and THF in monoclinic space group P_2_1/cwith a = 11.583 (3), b = 23.019(6), c = 8.227 (2), β= 90.26 (2)°, V= 2194 (1)~3, D_c= 1.59 g/cm~3.μ= 28.6 cm~(-1), F(000) = 1060, Z= 2 (dimers). Its crystal molecule is a dimer with a crystallographicsymmetry center. The central metal atom Sm is coordinated to two Cp' rings, two bridging chlorineatoms and one THF forming a distorted trigonal bipyramid. The crystal of [Cp'_2ErCl]_2 (3) belongs tothe triclinic space group P with a = 11.264 (2), b= 13.296(5), c = 14.296(6), a = 96.99 (3), β=112.47(2), γ= 102.78(2)°, V= 1865(1)~3, D_c= 1.67 g /cm~3, μ= 48.0 cm~(-1), F(000) = 924, Z = 2 (dimers).The molecule is a dimer consisting of two Cp'_2 ErCl species bridged by two Cl atoms. The centralmetal atom Er is coordinated to two Cp' rings and two bridging chlorine atoms forming a pseudo-tetrahedron. All these complexes are soluble in THF, DME, Et_2O, toluene and hexane.     

SYNTHESIS AND CRYSTAL STRUCTURE OF {C(η~5-C_5H_5)_4Nd_4(μ_4-O) (μ_2-Cl)_8)]·[Li(dme)_2THF]_2

<正> The reaction of (η5-C5H5)3Nd·THF and NdCl3·2LiCl·nTHF in solution at room temperature gave rise to[(η5-C5H5)4Nd4(μ4-O)(μ2-Cl)8][Li(dme)2THF]2 (Mr = 1654.44). Crystals of the compound were obtained at about - 10℃. The intensity data were collected under nitrogen atmosphere at-60℃. The crystal belongs to the rhombic system with space group Pna21 and the unit cell parameters : a=19. 010(7),b = 23. 231(6) ,c= 14. 180(4) A ;V = 6261. 91 (A3) , DC= 1. 67 (g/cm3), λ(MoKa) = 0. 71069A,F(000) = 3240,μ(mm-1) = 3. 660;Z = 4. Least-squares refinement with anisotropic temperature factors for all non-hydrogen atoms led to the final R=0. 054, Rw = 0. 056. The molecule is made up of the anion group and the cation. The oxygen atom links four Nd3+together as μ4-bridge. The eight chlorine atoms form the eight chlorine-bridge bonds among four Nd3+ions. The average bond length is : Nd-O=2. 374,Nd-Cl = 2. 811,Nd-C=2. 777,Nd(a)- Nd(b) = 3. 872A.The bond angles of Nd(a) -Nd (b)-Nd(c) fall in the range of 62~63°,th     

STUDY ON STRUCTURE OF SULFUR-BRIDGED TRANSITION METAL CLUSTERS——CRYSTAL AND MOLECULAR STRUCTURE OF (C_5H_7S_2)_3 [Mo_3(μ_3-S)_2 (μ_2-Cl)_3Cl_6]

The compound (C_5H_7S_2)_3[Mo_3 (μ_3--S)_2 (μ_2--Cl)_3 Cl_6] forms dark black octahedralcrystals with the following crystallographic parameters: a=22.885(10)A, c=25.407(7)A. Thespace group is I4_1/α, Z=16, ρ_(obs.)=2.073g/cm~3, ρ_(calc.)=2.126g/cm~3. The 1621 independentreflections with I≥3σ were collected on a CAD-4 four-circle diffractometer by means of MoK_αradiation. The structure was solved by three-dimensional Patterson synthesis and refined byleast squares technique to a final discrepancy factor of R=0.056. The results of our investiga-tion reveal that the molecule consists of a trinuclear Mo cluster anion and three planar mono-cations.surrounding the cluster anion. As the core of the anion the triad of Mo atoms, possessing anequilateral triangular configuration, is linked by two μ3--S bridging atoms and three μ2--Clatoms. Besides, two terminal Cl atoms are attached to each Mo atom to form an octahedralconfiguration. The diamagnetism and the short Mo-Mo distances (2.556 A, 2.641 A, 2.653 A)clearly indicate the existence of Mo-Mo bonds. The anion as a whole has an idealized D_(3h) localsymmetry.     

THE PREPARATION AND CRYSTAL STRUCTURE OF IMIDAZOLATE BRIDGED HETEROTRINUCLEAR COMPLEX [ (NH_3)_5 RhlmZn ( dien )-ImRh(NH_3)_5(C10_4)_6·4H_2O

<正> The imidazolate bridged heterotrinuclear complex [(NH3)5RhImZn(dien)-ImRh(NH3)5](ClO4)6·/4H2O,Mr= 1347. 56,was prepared and crystallized in the mono-clinic space group C2/c with unit cell constants, a = 32. 972 (4) , b = 9. 482 ( 1) , c = 15. 250(3) A ,β = 91. 26(1)°,V = 4766. 6A3 and Z=4. The structure was determined from 9043 independent reflections and refined to R=0. 049 for 3051 observed MoKa reflections. The Zn atom showed a distorted trigonal bipyramid coordination, being bonded to three nitrogen atoms of dien and two of imidazole. Each imidazole anion bridged one Zn atom and one Rh atom. The Rh atom was coordinated by six nitrogen atoms,one of which is from imidazole and the five others from NH3 forming a regular octahedral coordination.     

SUBSTITUTION REACTION OF LIGANDS IN TRINUCLEAR Mo CLUSTERS WITH "LOOSE COORDINATION SITE" AS WELL AS SYN-THESIS AND CRYSTAL STRUCTURE OF Mo_3(μ_3-S) (μ-S)_3(dtp)_3(C_3H_4N_2)_3 (dtp)·(CH_3)_2CO

When trinuclear molybdenum cluster compound with "loose coordination site", Mo_3(μ_3-S)(μ-S)_3(μ-dtp)(dtp)_3·H_2O(A) (dtp=diethyldithiophos-phinato anion), is reacted with an excess of imidazole, the H_2O ligand and the bidentate bridging ligand μ-dtp are found to be simultaneously substituted by the imidazole to form the title compound. The title crystal belongs to the space group P(?), Z =2, with the following unit cell parameters: a=14.465(2), b=14.653(4), c=14.886(6), α=99.36(3),β=93.11(2),γ=114.29(2),V=2812(3). The crystalline compound consists of an ordered array of the cluster cation and dtp anion with acetone as packed molecule. The cation possesses a symmetry of C_3. Three Mo atoms form basically an equilateral triangle with three Mo—Mo bond lengths of 2.763 (1), 2.762(1), 2.756(1) respectively.     

MOLYBDENUM-IRON MIXED METAL CLUSTERS (Ⅰ)——THE SYNTHESIS AND STRUCTURAL CHARACTERIZATION OF (η~5-C_5H_5)_2Mo_2Fe_2(μ_4-Te)(μ_3-Te)_2(CO)_6

The reaction of Fe_2(μ_3-Te)_2(CO)_9 with Mo_2(CO)_6(η~5-C_5H_5) affords the title compound. Its X-ray analysis shows a butterfly structure for the Mo_2Fe_2 core; the two molybdenum atoms occupy the hinge with a Mo—Mo bond distance of 2.819 and the two iron atoms are on the tops of the wings with an average Mo—Fe bond distance of 2.932(2). Each molybdenum is bonded to a Cp ring, and three CO ligands are terminally bonded to each iron atom. One tellurium atom quadruply bridges Mo_Fe_2 with Mo—Te(μ_4)=2.625(2). and Fe—Te(μ_4)=2.713(2). Two tellurium atoms triply bridge the two triangular Mo_2Fe faces with Mo—Te(μ_3)=2.678(1) and Fe—Te(μ_3)=2.513(3). The molecule has C_(2v) symmetry and a bicapped triangle bipyramidal skeleton. Crystallographic parameters are as follows: space groupImm2(orthorhombic), a=14.562(3), b=10.391(1), c=7.139(4), V=1080.2(i)~3, Z=2, ρ(cald)=1.819g·cm~(-3). The final R factor was 2.2％ for 620 independent reflections(I>2σ(I)).     

RESEARCH ON TRINUCLEAR MOLYBDENUM CLUSTER COMPOUNDS——CRYSTAL AND MOLECULAR STRUCTURES OF (Et_4N)_2[Mo_3(μ_3-O)(μ_2-Cl)_3(Oac)_2Cl_5]

The title compound forms black crystals shaped like pseudo-octahedrons, which belong to the orthorhombic system The space group is Pna 2_1 with unit cell parametrs of a=17.815(1), b=16.629(2), c=12.003(1), and with Z=4, D_(obs)=1.80g·cm~(-3), and D_(calc)=1.804g·cm~(-3). The crystal structure was solved by the heavy atom method and refiened by fullmatrix least-squares to a final conventional R factor of 0.048 for 2584 unique reflections with I≥σ(Ⅰ). The investigation confirms that the crystal structure consists of tetraethylammonium cations and trinuclear Mo cluster anions. The anion is a μ_3-O monocapped trinuclear cluster with an average Mo-Mo bond length of 2.60 (2). On the side of the Mo_3 triangular plane opposite to the μ_3-O atom, each two Mo atoms are bridged by a Cl atom with the result that these seven atoms (3 Me, 1 O and 3 Cl atoms)form an apex-deficient quasicubane configuration. In addition, each Mo atom is coordinated to three additional atoms resulting in a pseudo-octahedral geome     

CRYSTAL STRUCTURE AND REACTIVITY OF (Et_4N) [Mo_3(μ_6-O)-(μ-Cl)_3(μ-OAc)_3Cl_3]

<正> (Et4N)[Mo3(μ3-O)(μ-Cl)3(μ-OAc)3Cl3], C14H29Cl6Mo3NO7, Mr = 823.92, triclinic, P1, a = 17. 508(4), b = 19. 602(3), c=8. 091(2)A, α=91. 25(2)°, β= 96. 56(2)°,γ= 83. 61(2)°, V = 2741(1)A3, Z = 4, Dc = 2.00g/cm3, MoKa (λ=0. 71069A), μ= 19. 44cm-1, F(000) = 1616, T = 23℃, final R = 0. 055, Rw = 0. 068 for 5728 unique intensity data (I≥3σ(I)).The molecule consists of cluster aniorn [Mo3(μ3-O) (μ-Cl)3(μ-OAc)3Cl3]- and cation (Et4N) + . There are two independent molecules in an asymmetric unit whose cluster anions A and B have the same configuration except for some bonding parameters. The cluster core may be described as an equilateral {Mo3} triangle with a capping O atom and three bridging Cl atoms below and above it respectively. In addition, each pair of Mo atoms is bridged by an acetate group and each Mo atom is further coordinated to a terminal chlorine atom. The three Mo - Mo bonds are 2. 587 (2), 2.587(2), 2. 582(2) A for cluster anion A and 2. 587(2), 2.595(2), 2.577 (2) A for cluster a     

RESEARCH ON TRINUCLEAR MOLYBDENUM CLUSTER COMPOUNDS——CRYSTAL AND MOLECULAR STRUCTURE OF (C_5H_7S_2)_3[Mo_3(μ_3-S)(μ_2-S_2)_3Cl_7]

The space group of the title crystal is Pnam. The unit cell parameters are: a=17.226(4), b=14.306(7), c=15.074(4); z=4, Dobs=2.03g·cm~(-3), D_(calc)=2.063g·cm~(-3). The crystal structure was solved by the heavy atom method and refined by the full-matrix least-squares until the final conventional discrepancy factor was reduced to 0.068. The results of the investigation show that the crystal consists of trinuclear Mo cluster anions [Mo_3(μ_3-S)(μ_2-S_2)_3Cl_7]~(3-) together with planar (C_5H_7S_2)~ monocations, surrounding the cluster anions. In the cluster anion three Mo atoms, forming a nearly equilateral triangle (2.755(1), 2.755(1), 2.743(1)), are bound by a μ_3-S bridging atom, while each pair of Mo atoms is bridged further by a μ_2-S_2 ligand. Besides, each Mo atom is coordinated to two terminal Cl atoms, so that the coordination sphere of each Mo atom approaches closely a pentagonal bipyramid. In addition, a single Gl atom, not at all involved in the coordination spheres of the three Mo atom     

THE SYNTHESIS AND CRYSTAL STRUCTURE OF A NOVEL MOLYBDENUM-SULFUR CLUSTER COMPLEX, (NH_4)_4[Mo_3(NO)_4S_(13)]·3H_2O

The title compound has been synthesized, the crystal structure of which has been detorminedby the single-crystal X-ray diffraction method. The crystal belongs to triclinic space group C-P1 with the unit cell parameters: a =9.535(2)A, b = 9.740(2)A, c = 15.795(4)A, α = 89.85(2)°, β = 91.80(2)°, γ = 99.37(1)°,ν = 1446.6A~3, Ζ = 2. The structure is refined to R = 0.075, R_w = 0.074 for 1903 reflections. There are diverse bonding modes of molybdenum and sulfur in this eompound. The twosulfur atoms at the center bond to three molybdenum atoms from respective sides and formthe two apices of a trigonal bipyramid. Besides, there are S_2~(-2) ligands and a polysulfur chaincomposed of three sulfur atoms. The coordination number for the three molybdenum atomsis seven. Their coordination polyhedra are somewhat distorted pentagonal bipyramid. Eachof the three NO ligands coordinated to molybdenum gives a linear group of Mo-N-O, whilethe fourth NO ligund bonded with a polysulfur chain forms a bent group of S-N     

CRYSTAL STRUCTURE OF Mo_3(μ3-S)(μ-S)_3 (μ-C_2H_5COO)(dtp)_3Py

<正> C20H40Mo3NO8P3S10, Mr=1123.93, triclinic, P1,a=12.972(3), b=13.763(2), c= 14.515(7)A,α=66.22(3),β=101.72(3),γ=118.90(1)° , V= 2076(2) A3, Z=2,Dc=1.798 g.cm-3, MoKa radiation, final R= 0.040 and Rw=0.056 for 5645 observed reflections. The molecule contains three Mo atoms arranged in a triangle with one capping-S atom, three (μ-S) atoms, one (μ-EtCOO) ligand, one chelate ligand dtp on each Mo atom, and one terminal Py on atom Mo(1). The coordination of Mo atoms is of distorted octahedron.     

THE SYNTHESIS AND STRUCTURE OF Mo_3(μ_3-O)(μ-S)_3(μ-O_2CC_6H_5)_2(dtp)_2(Py)

<正> The title compound was prepared by reaction of Mo3(μ3-O) (μ-S)3-(dtp)4 (H2O) with C6H5COONa and pyridine. C27 H35 Mo3NO9P2S7, Mr = 1091.76, monoclinic, space group P21/c, a = 15. 057(5), b = 13. 052(5), c = 21. 662(6)(?), β=105.97(2)°, V = 4093(2) (?)3, Z = 4, Dc= 1. 77gcm-3, F(000) = 2176, μ(MoKα)=13.50cm-1, final R =0. 068 for 2835 observations. The molecular configuration is new and of approximate C, symmetry, and there are two C6H5COO bridging groups in the structure. The three Mo atoms form an isosceles triangle with three sides of 2. 567(3), 2. 576(3), and 2. 649(3)(?), where the two Mo-Mo bonds bridged by C6H5COO group are much shorter than that without. Something about the reactivity of Mo clusters is discussed.     

CRYSTAL AND MOLECULAR STRUCTURE OF MOLYBDENUM COM-PLEX MoO_2Cl_2(C_4H_3OCOOH)_2

<正> The crystal and molecular structure of the title compound was determined by single crystal X-ray diffraction method. The complex crystallizes in the mono-clinic space group P21/n with a = 10. 306 ( 3) , b = 10. 161 (2), c = 14. 798 ( 4) A . β= 108. 52(2)°, V= 1469. 4(6)A3,Z= 4. The structure was solved by direct methods. Least-squares refinement converged to a final value of R = 0. 043 and Rw= 0. 040 for 1237 reflections. The molybdenum (Ⅵ) ion is bonded to two chlorine atoms, two oxo atoms and two oxygen atoms from two monodentately and weakly coordinated carboxyl groups of molecules C4H3OCOOH, forming a octahedron. The Mo-O distances are in the range 1. 66 - 2. 39A ,the Mo-Cl distances fall in the range 2. 33-2. 34A.     

RESEARCH ON TRINUCLEAR MOLYBDENUM CLUSTER COMPOUNDS——CRYSTAL AND MOLECULAR STRUCTURE OF Mo_3(μ_3—O)(μ_2—S_2)_3[S_2P(OEt)_2]_3I

The title crystals are golden yellow rhomboic plates, belonging to the monoelinic system. The space group is P_(B_1)/n with unit cell parameters a=16.570(2), b=12.370(1), c=20.007(2), β=99.97(1)°, Z=4, D_c=1.938 g.cm~(-3). The crystal structure was solved mainly by the heavy atom method and refined by the full-matrix least-squares to a final R factor of 0.047 based on 4387 unique reflections with intensities I≥2σ(I). The results show that the crystal structure consists of neutral mono-oxo-capped trinuclear molybdenum cluster molecules with an average Mo-Mo bond length of 2.626(4) and an average Mo-O bond length of 2.036(2) respectively. Each pair of Mo atoms is further bridged by an S_2~(2-) radical, in which one S atom is essentially situated on the triangular plane formed by these three Mo atoms and the other one is situated on the side of the plane opposite to the μ_3-O atom. Besides, each Mo atom is coordinated to two S atoms belonging to an [S_2P(OEt)_2]~-radical so as to complete a nearly pen     

CRYSTAL STRUCTURE OF (Br(μ-Met)(μ-Gly)(H_2O)_4]_2[Er(μ-Net)_2(H_2O)_4]_2(ClO_4)_(12)

<正> [Er(u-Met)(u-Gly)(H2O)4]2[Er(u-Met)2(HaO)4]2(ClO4)12(NMet=CH3S-(CH2)2CH(NH2)COOH,Gly=NH2CH2COOH), Mr=3194, trilinic, space group P1, a = 12.375(6),b= 14.041(13), c=19.074(13)A,α=80.85(6),β=80.72(6).γ=62.82(6)° ,Z=1,V= 2896A3,Dc=1.83 g/cm3,R=0.091. The carboxyl groups of Met and Gly in the title complex are bonded to Er atoms as bidentate bridging ligands.There are two different cations located at crystallographic symmetry centers in one unit cell.     

STRUCTURE OF PENTAAQUO PYROMEL DIZINE (Ⅱ)-DIHYDROUS [C_6H_2(COO)_4Zn_2(H_2O)_5]·2H_2O

Crystal and molecular structure of [C6H2(COO)4Zn2(H2O)5]·2H2O has been determined by X-ray diffraction technique, Mr = 507. 0,monoclinic,space group P21/n,a = 5. 925(1), 6 = 23. 613(9) ,c= 11. 790(5) A ,β= 96. 36 (3)°, V=1639. 3 (1. 0) A3,Z=4,DC = 2. 05g/cm3,λ=0. 71069 A,μ(MoKa) = 30. 9/cm-1,F(000) = 1024e. The structure was solved by Patterson and Fourier techniques and refined by least-squares method to a final conventional R value of 0. 055(Re = 0. 059)for 1557(I>3σ(I))reflections. Both atoms Zn(1) and Zn(2) are bridged by the Z,E-type of the car-boxyl group, in addition, Zn (1) is monodentate-bonded to the three remaining carboxyl and Zn(2) is bonded to five water molecules. The crystal structure shows a 2-dimensional polymeric network along(010)face. The Zn(l) -O distances are in the range of 1. 94~ 2. 01 A (average 1. 98 A ). The Zn(2) -O distances are in the range of 2. 06~2. 21 A (average 2. 12A).