Direct Ag−Pt2Interactions in Pentafluorophenyl A-Frame Complexes Containing Halide or OH-and Bis(diphenylphosphino)methane (dppm) as Bridging Ligands. Crystal Structures of [(C6F5)2Pt(μ-OH)(μ-dppm){Ag(PPh3)}Pt(C6F5)2]·C7H8and [(C6F5)2Pt(μ-SC4H8)(μ-dppm)Pt(C6F5)2]·1/2C6H14

1996 ◽  
Vol 35 (26) ◽  
pp. 7867-7872 ◽  
Author(s):  
José María Casas ◽  
Larry R. Falvello ◽  
Juan Forniés ◽  
Antonio Martín
Keyword(s):  
Crystal Structures ◽  
Bridging Ligands

Syntheses, crystal structures, and biological evaluations of new dinuclear platinum(II) complexes with 1,2,4-triazole derivate as bridging ligands

2021 ◽  
Author(s):  
Jianwei Wang ◽  
Xinhua Li ◽  
Caixia Yuan ◽  
Feng Su ◽  
Yanbo Wu ◽  
...  
Keyword(s):  
Crystal Structures ◽  
General Formula ◽  
Bridging Ligands ◽  
Dinuclear Platinum

A series of new dinuclear platinum(II) complexes with general formula [Pt2(μ-HL)4] (1–4), where H2L is 4-[(5-chloro-2-hydroxy-benzylidene)-amino)]-3-R-1,2,4-triazole-5-thione: R = H (1), methyl (2), ethyl (3) and propyl (4), have been synthesized...

scholarly journals Kristallstrukturen zweier Kupfer(II)-Cyclam-Komplexe: [{CuCl(C10N4H24)}2][CdCl4] und [Cu(C10N4H24)][CdCl3(H2O)2]Cl / Crystal Structures of Two Copper(II) Cyclam Complexes: [{CuCl(C10N4H24 )}2][CdCl4] and [Cu(C10N4H24)][CdCl3 (H2O)2]Cl

1995 ◽  
Vol 50 (5) ◽  
pp. 828-832 ◽  
Author(s):  
Joachim Pickardt ◽  
Isabella Hoffmeister
Keyword(s):  
Crystal Structures ◽  
Copper Atom ◽  
Water Molecules ◽  
Cadmium Atom ◽  
Bridging Ligands ◽  
Chlorine Atoms ◽  
Space Group ◽  
Distorted Octahedra ◽  
Cyclam Complexes

Abstract Crystals of both complexes were obtained by evaporation of the ethanol solvent. The crystals of [{CuCl(C10N4H24)}2][CdCl4] are tetragonal, space group I4̄2d, Z = 4, a = b = 1784.1(11), c = 1101.1(8) pm. Each copper atom is bonded to one cyclam ligand and two chlorine atoms which are acting as bridging ligands and connect the copper atoms to chains of distorted octahedra. Distorted tetrahedra of CdCl4 are situated in cavities between these chains. The crystals of [Cu(C10N4H24)][CdCl3(H2O)2]Cl are monoclinic (b), space group C2/c, Z = 4, a = 1581.9(8), b = 1323.3(7), c = 924.0(5) pm, β = 94.31(5)°. Cadmium is coordinated to four chlorine atoms and two water molecules, while all of the chlorine atoms act as bridging ligands connecting every cadmium atom to two adjacent cadmium atoms and to two copper atoms which lie in plane with the N atoms.

scholarly journals Crystal structures of two heterotrimetallic dysprosium–manganese–sodium 12-metallacrown-4 complexes with the bridging ligands 3-hydroxybenzoate and 4-hydroxybenzoate

2020 ◽  
Vol 76 (8) ◽  
pp. 1213-1221
Author(s):  
Elizabeth C. Manickas ◽  
Matthias Zeller ◽  
Curtis M. Zaleski
Keyword(s):  
Crystal Structures ◽  
Repeat Unit ◽  
Distorted Octahedral Geometry ◽  
Central Cavity ◽  
Bridging Ligands ◽  
The Third ◽  
Distorted Octahedral ◽  
Solvent Molecules ◽  
Whole Molecule Disorder ◽  
Trigonal Prismatic

The syntheses and crystal structures for the compounds tetra-μ-aqua-tetrakis{2-[azanidylene(oxido)methyl]phenolato}tetrakis(μ2-3-hydroxybenzoato)dysprosium(III)tetramanganese(III)sodium(I) N,N-dimethylacetamide decasolvate, [DyMn4Na(C7H5O3)4(C7H4NO2)4(H2O)4]·10C4H9NO or [DyIIINa(4-OHben)4{12-MCMn(III)N(shi)-4}(H2O)4]·10DMA, 1, and tetra-μ-aqua-tetrakis{2-[azanidylene(oxido)methyl]phenolato}tetrakis(μ2-3-hydroxybenzoato)dysprosium(III)tetramanganese(III)sodium(I) N,N-dimethylformamide tetrasolvate, [DyMn4Na(C7H5O3)4(C7H4NO2)4(H2O)4]·4C3H7NO or [DyIIINa(3-OHben)4{12-MCMn(III)N(shi)-4}(H2O)4]·4DMF, 2, and where MC is metallacrown, shi3− is salicylhydroximate, 3-OHben is 3-hydroxybenzoate, DMA is N,N-dimethylacetamide, 4-OHben is 4-hydroxybenzoate, and DMF is N,N-dimethylformamide, are reported. For both 1 and 2, the macrocyclic metallacrown consists of an [MnIII—N—O] ring repeat unit, and the domed metallacrown captures two ions in the central cavity: a DyIII ion on the convex side of the metallacrown and an Na+ ion the concave side. The MnIII ions are six-coordinate with an elongated tetragonally distorted octahedral geometry. Both the DyIII and Na+ ions are eight-coordinate. The DyIII ions possess a square-antiprismatic geometry, while the Na+ ions have a distorted biaugmented trigonal–prismatic geometry. Four 3-hydroxybenzoate or 4-hydroxybenzoate ligands bridge each MnIII ion to the central DyIII ion. For 1, whole-molecule disorder is observed for the main molecule, excluding only the DyIII and Na+ ions, and the occupancy ratio refined to 0.8018 (14):0.1982 (14). Three DMA molecules were refined as disordered with two in general positions by an approximate 180° rotation and the third disordered twice by general disorder as well as by an exact 180° rotation about a twofold axis that bisects it. The occupancy ratios refined to 0.496 (8):0.504 (8), 0.608 (9):0.392 (9), and 2×0.275 (7):2×0.225 (7), respectively. For 2, segments of the metallacrown are disordered including the DyIII ion, one of the Mn ions, two of the Mn-bound 4-hydroxybenzoate ligands, the Mn-bridging salicylhydroximate ligand, and portions of the remaining three shi3− ligands. The occupancy ratio for the metallacrown disorder refined to 0.849 (9):0.151 (9). Two DMF solvent molecules are also disordered, each over two orientations. The disorder ratios refined to 0.64 (3):0.36 (3) and to 0.51 (2):0.49 (2), respectively. For 2, the crystal under investigation was refined as a non-merohedric twin by a 90° rotation around the real a axis [twin ratio 0.9182 (8):0.0818 (8)].

Linkage of two trimetallic clusters through the bridging ligands C3HO2 and C3O2. Crystal structures of three clusters containing the components Os3CHCCO2Os3, Ru3CHCCO2Os3, and Os3CCCO2Os3

1990 ◽  
Vol 389 (3) ◽  
pp. 361-374 ◽  
Author(s):  
Kenneth I. Hardcastle ◽  
Tim McPhillips ◽  
Alejandro J. Arce ◽  
Ysaura De Sanctis ◽  
Antony J. Deeming ◽  
...  
Keyword(s):  
Crystal Structures ◽  
Bridging Ligands

Intramolecular Hydrolysis of Coordinated Acetonitrile in a Binuclear Complex of Cobalt(III): X-Ray Crystallographic Analysis of Salts of [(tren)Co(μ-NH2,μ-L)Co(tren)]4+(L=OH, CH3C(O)NH)

1990 ◽  
Vol 43 (4) ◽  
pp. 643 ◽  
Author(s):  
NW Alcock ◽  
II Creaser ◽  
NJ Curtis ◽  
L Roecker ◽  
AM Sargeson ◽  
...  
Keyword(s):  
Crystal Structures ◽  
Binuclear Complex ◽  
Binding Mode ◽  
Crystallographic Analysis ◽  
Bridging Ligands ◽  
X Ray ◽  
Hydrolysis Of

A synthesis of [( tren )Co(μ-NH2,μ-OH)Co( tren )]4+(3)( tren = tris (2- aminoethyl )amine) is reported along with a series of derivatives: [( tren ) XCo (μ-NH2) CoX ( tren )]n+, where X = CF3SO3- (n = 3)(4), X = CH3CN (n = 5)(5), and [( tren )Co(μ-NH2,μ-CH3C(O)NH)Co( tren )]4+ (6). The substitution of (4) by CH3CN to yield (5) was studied in CH3CN at 20°C, k = 9.0×10-3 s-1, and the intramolecular hydrolysis of (5) to yield the bridging acetamide complex (6) was studied at various acid concentrations. The X-ray crystal structures were determined for (3b) (exafluorophosphate, dihydrate) and (6b) (dithionate, tetrahydrate ). Both crystals are monoclinic, respectively P21/n with a 11.082(2), b 10.402(2), c 15.611(2)Ǻ, β 99.13(2)°, Z 2, and C2/c with a 14.328(2), b 14.046(1), c 16.497(2)Ǻ, β 101.90(1)°, Z 4. For the salt of (3), 2389 data with 1 ≥ 2σ(I) were refined to R 0.070 ( Rw 0.066), and, for the salt of (6), 3087 data with I ≥ 3σ(I) were refined to R 0.041 ( Rw 0.056). Both ions lie on pseudo-symmetric sites involving disorder of the bridging ligands . The structures establish the binding mode of the acetamido ion and the orientation of the tren groups in the isolated complexes.

Syntheses of Two New 1D and 3D Networks of Cu(II) and Co(II) Using Malonate and Urotropine as Bridging Ligands: Crystal Structures and Magnetic Studies

2003 ◽  
Vol 42 (8) ◽  
pp. 2545-2552 ◽  
Author(s):  
Sanjit Konar ◽  
Partha Sarathi Mukherjee ◽  
Michael G. B. Drew ◽  
Joan Ribas ◽  
Nirmalendu Ray Chaudhuri
Keyword(s):  
Crystal Structures ◽  
Magnetic Studies ◽  
Bridging Ligands ◽  
3D Networks

Synthesis, Crystal Structures and Magnetic Properties of MIICuII Chains (M=Mn and Co) with Sterically Hindered Alkyl-Substituted Phenyloxamate Bridging Ligands

2011 ◽  
Vol 17 (7) ◽  
pp. 2176-2188 ◽  
Author(s):  
Jesús Ferrando-Soria ◽  
Emilio Pardo ◽  
Rafael Ruiz-García ◽  
Joan Cano ◽  
Francisco Lloret ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Crystal Structures ◽  
Bridging Ligands ◽  
Sterically Hindered
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