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S4N4 and its Derivatives: [Cu(CH3CN)CL2]2S2N2, a Transition Metal Complex with the S2N2 Ligand S4N4 reacts with CuCl2 · 2H2O in acetonitrile to give among other products the polymer copper(II) complex [Cu(CH3CN)Cl2]2S2N2, This complex crystallizes in the space group P21/c with a = 9.635(4), b = 7.270(4), c = 10.009(6) Å, β = 93.16(6)°, and Z = 2. An X-ray structure analysis (R = 0,065) shows the crystal to.contain parallel chains with copper atoms bridged by Cl and S2N2 bridges. The coordination of the Cu atom is square pyramidal. The S2N2 ring is planar. The SN bond distances are 1.633 and 1.641 Å. 相似文献
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Anionie Nickel Pseudohalide Complexes of the Types [Ni{N(CN)2}3]? and [Ni{N(CN)2}2(NCS)2]2? The preparation of a new type of anionic pseudohalide complexes of nickel [Ni{N(CN)2}3]? and of mixed thiocyanate-dicyanamide complexes [Ni{N(CN)2}2(NCS)2]2? is reported. The structures of the complexes are discussed on the basis of IR- and magnetic measurements. The new compounds are representing polymer octahedral complexes with a bridging function of the dicyanamide ligands. 相似文献
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J. Weiss 《无机化学与普通化学杂志》1983,502(7):165-170
Metal Sulfur Nitrogen Compounds. 13. Reaction of [Ni(HN2S2)2] with Bases. Salts with the Anions [Ni(HN2S2)(N2S2)]? and [Ni(N2S2)2]2? Whereas the complex [Ni(HN2S2)2] reacts with alcoholic solutions of alkaline hydroxides by double deprotonation to the anion [Ni(N2S2)2]2?, only one proton is removed by the reaction with strong organic bases like tetraalkylammonium, tetraphenylphosphonium, and tetrphenylarsonium hydroxides. The corresponding salts with the anion [Ni(HN2S2)(N2S2)]? are formed. The salts containing the tetramethylammonium, tetraethylammonium, tetra-n-butylammonium and tetraphenylarsonium cations were isolated as rather stable, crystalline solids. The structure of the tetraphenylarsonium salt [Ph4As][Ni(HN2S2)(N2S2)] was determined by X-ray structure analysis. 相似文献
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NaAg3S2, a Thioargentate Containing the Anionic Cluster [Ag6S4]2? . Dark-red octahedrally shaped crystals of NaAg3S2 could be obtained by the reaction of NaAg(CN)2 and NaCN in a stream of hydrogen sulfide at 630 K. NaAg3S2 crystallizes cubic, a=12.358(1) Å, space group Fd3 m, Z=16. The structure was determined from four-circle diffractometer data. NaAg3S2 contains the anionic cluster [Ag6S4]2?. The structure can be traced back to the spinel structure typ. An extended Hückel calculation for the cluster anion, which is considered to be isolated, shows weak bonding silver-silver interactions. NaAg3S2 is diamagnetic at room temperature. 相似文献
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[K(15-Crown-5)2]2Te8 – a Bicyclic Polytelluride The octatelluride [K(15-crown-5)2]2Te8 has been synthesized by the oxydation of a potassium tritelluride solution in dimethylformamide by iron(III) chloride in the presence of 15-crown-5, forming black crystals, which were characterized by an X-ray structure determination. Space group Pca21, Z = 4, 4 548 observed unique reflections, R = 0.048. Lattice dimensions at –70°C: a = 1 881(1), b = 2 211(2), c = 1 530(1) pm. The structure consists of cations [K(15-crown-5)2]+, in which the potassium ions are sandwichlike coordinated by the oxygen atoms of the two disordered crown ether molecules, and of bicyclic Te82? ions. In these anions a Te2+ ion is chelated in a planar fashion by a Te32? and a Te42? unit. 相似文献
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Frank T. Edelmann Prof. Dr. Steffen Blaurock Volker Lorenz Tristram Chivers Prof. Dr. 《无机化学与普通化学杂志》2008,634(3):413-415
The synthesis and structural characterization of the first organometallic derivative of [Ni(S2N2H)2] ( 1 ) are reported. Treatment of K2[Ni(S2N2)2] ( 2 ) with stoichiometric amounts of [Cp2TiCl2] in boiling toluene afforded black, crystalline [Cp2TiNi(S2N2)2] ( 3 ) in 50 % yield. According to a single‐crystal X‐ray diffraction study, the novel heterobimetallic complex 3 comprises a nearly planar TiNi(S2N2)2 arrangement. The Ti···Ni separation in 3 is 2.8348(5) Å, a value that is typical for bridged early‐late heterobimetallic complexes. 相似文献
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J. Weiss 《无机化学与普通化学杂志》1988,559(1):106-110
The reaction of S4N3Cl with metal salts leads to complexes containing the S3N?chelating ligand, a reaction which proceeds smoothly especially in an alkaline medium. Thus we were able to prepare, by the reaction of CuCN with S4N3Cl and [Ph6P2N]OH (Ph = phenyl), the salt [Ph6P2N][Cu3(S3N)2(CN)2], a compound in which the anions build a bidimensional network through supplementary Cu - S contact interactions. The salt is monoclinic, space group C2/c, a = 18.960, b = 14.651 and c = 15.400 Å, β = 101.03° and Z = 4. Metal Sulfur Nitrogen Compounds. 22. S4N3Cl as a Starting Compound for the Preparation of Complexes Containing the S3N? Ligand. Complexes [Ph6P2N] [Cu3(S3N)2 (CN)2] and [Ph4As] [(CuS3N)2 (CN)] In contrast, the reaction of CuN with S4N3Cl and [Ph4As]OH led to the compound [Ph4As][(CuS3N)2(CN)], monoclinic, space group C2/c, a = 18.478, b = 6.405, c = 27.051 Å, β = 119.50°, Z = 4. In the centrosymmetric anion the two Cu(S3N) groups are linked together by disordered CN? groups. An additional linkage results from Cu - Cu contact interactions, with d = 2.84 Å. 相似文献
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Scanning electrochemical microscopy (SECM) is used to form local deposits of different Prussian blue analogs on macroscopic
surfaces of gold and glassy carbon. Dissolution of Co and Ni sacrificial ultramicroelectrodes (UMEs) generates divalent cations
in the gap between the UME and the macroscopic specimen electrode. Co2+ or Ni2+ precipitate with [Fe(CN)6]4– formed by reduction of [Fe(CN)6]3– at the macroelectrode. By moving the UME while generating Co2+ or Ni2+, lines can be "drawn" with a width of 130 μm. The line width can be adjusted by reagent concentration and translation speed
of the UME. Different pulse programs allow the formation of ring-shaped structures. The deposited hexacyanoferrate microstructures
show catalytic activity for the reduction of Fe3+ which was imaged in the feedback and generation-collection modes of the SECM.
Electronic Publication 相似文献
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On the Crystal Structures of the Cyano Complexes [Co(NH3)6][Fe(CN)6], [Co(NH3)6]2[Ni(CN)4]3 · 2 H2O, and [Cu(en)2][Ni(CN)4] Of the three title compounds X‐ray structure determinations were performed with single crystals. [Co(NH3)6][Fe(CN)6] (a = 1098.6(6), c = 1084.6(6) pm, R3, Z = 3) crystallizes with the CsCl‐like [Co(NH3)6][Co(CN)6] type structure. [Co(NH3)6]2[Ni(CN)4]3 · 2 H2O (a = 805.7(5), b = 855.7(5), c = 1205.3(7) pm, α = 86.32(3), β = 100.13(3), γ = 90.54(3)°, P1, Z = 1) exhibits a related cation lattice, the one cavity of which is occupied by one anion and 2 H2O, whereas the other contains two anions parallel to each other with distance Ni…Ni: 423,3 pm. For [Cu(en)2][Ni(CN)4] (a = 650.5(3), b = 729.0(3), c = 796.5(4) pm, α = 106.67(2), β = 91.46(3), γ = 106.96(2)°, P1, Z = 1) the results of a structure determination published earlier have been confirmed. The compound is weakly paramagnetic and obeys the Curie‐Weiss law in the range T < 100 K. The distances within the complex ions of the compounds investigated (Co–N: 195.7 and 196.4 pm, Ni–C: 186.4 and 186.9 pm, resp.) and their hydrogen bridge relations are discussed. 相似文献
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Na9[FeO3][FeO4]a Mixed Valent Oxoferrat(II, III) with Isolated [FeO3]4— — and [FeO4]5— Anions Na9[FeO3][FeO4] has been formed and obtained from a redox reaction between CdO and iron metal (reaction container) and Na2O in the presence of NaOH at 450 °C as orange‐red transparent single crystals. The crystal structure determination (IPDS data: Pca21, a = 956.2(2) pm, b = 999.1(2) pm, c = 1032.3(2) pm, Z = 4, Rall = 0.0455) reveals the presence of isolated complex anions, [FeO3]4— and [FeO4]5—. 相似文献
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[Cd(STrt)3]–, a Homoleptic Cadmium Complex with the Sterically Demanding Triphenylmethanethiolate Ligand Crystalline [K(18‐crown‐6)(THF)2][Cd(STrt)3] · 2 THF ( 1 ) has been isolated in 77% yield from the reaction of CdCl2, KSTrt and 18‐crown‐6 in tetrahydrofuran (THF; Trt = triphenylmethyl). The CdII ion of 1 exhibits a distorted trigonal coordination by three thiolate ligands (Cd–S 2.461(2)–2.518(2) Å, S–Cd–S 106.87(5)–135.20(5)°, Cd atom 0.24 Å above the S3 plane). 相似文献
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New Alkali Oxoarsenates(V): NaLi2[AsO4] — A New Type of Formula [1] . By heating of well ground mixtures of the binary oxides As2O3, Na2O, and Li2O2, molar ratio As:Na:Li = 1.0:1.0:2.0, in a well closed Ni tube (650°C, 21 d) colourless single crystals of NaLi2[AsO4] were obtained for the first time. The new orthoarsenate(V) crystallizes orthorhombic (space group P mn21-C, No. 31) with Z = 2. The structure determination showed that it is isostructural to βII-Li3[VO4] and that means the Li3[PO4]-type. The lattice constants a = 702.9(2) pm, b = 520.5(1) pm, c = 505.4(2) pm were taken from Guinier-Simon powder data. The structure was determined by four-circle diffractometer data [Philips PW 1 100, AgKα , 679 independent out of 2 373 Io(hkl), R = 3.03%, Rw = 2.29%; parameter see text]. The Madelung Part of Lattice Energy, MAPLE, and Effective Coordination Numbers, ECoN, these calculated via Mean Fictive Ionic Radii, MEFIR, are calculated and discussed. 相似文献
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[Li(THF)][Zn3(CH2CN)3(LiBr)(NPMe3)4] — a functionalized Phosphoraneiminato Complex of Zinc with Supramolecular Structure [Li(THF)][Zn3(CH2CN)3(LiBr)(NPMe3)4] ( 1 ) has been prepared from the heterocubane [ZnBr(NPMe3)]4 and LiCH2CN in tetrahydrofuran suspension to give colourless crystals which were characterized by IR‐spectroscopy and by a crystal structure analysis. 1 crystallizes in the orthorhombic space group Pnam with four units per unit cell. Lattice dimensions at 203 K: a = 2156.9(10), b = 1546.9(14), c = 1226.2(4) pm, R1 = 0.0756. The structure consists of the anionic heterocubane [Zn3(CH2CN)3(LiBr)(NPMe3)4]—, the eight skeleton atoms of which are the three zinc atoms and the lithium atom as well as the four nitrogen atoms of the phosphoraneiminato groups. The charge of this anionic cube is compensated by a Li+‐ion to which is coordinated a THF molecule, as well as three cyanomethyl‐nitrogen atoms of three different cubes. This results in the formation of a three‐dimensional supramolecular structure. 相似文献
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[catena‐Bis(1,2‐diaminoethane)nickel(II)‐µ‐dicyanoargentate]‐dicyanoargentate, [Ni(en)2Ag2(CN)4], was synthesized and its chain‐like crystal structure was determined by X‐ray crystal analysis. Copyright © 2005 John Wiley & Sons, Ltd. 相似文献