نتایج جستجو برای: binuclear complex

تعداد نتایج: 784957  

2008
Jinglin Wang Bin Liu Binsheng Yang

In the title binuclear iron(III) complex, [Fe(2)(C(14)H(10)N(2)O(2))(3)]·4C(4)H(8)O or [Fe(2)(salda)(3)]·4THF [H(2)salda = 2,2'-(azinidimethyl-ene)diphenolate and THF is tetra-hydro-furan], the ligand possesses a rotationally flexible single N-N bond. Three dinucleating O,N:N',O'-donor ligands provide three diazine (=N-N=) bridges between the metal ions, yielding a binuclear triple helicate str...

2009
Chunliang Tian

The title complex, [Ni(2)(C(6)H(2)N(3)O(7))(2)(C(10)H(20)N(4)O(4))], contains a centrosymmetric binuclear unit in which the oxamide ligand (located on a centre of symmetry) acts in a bis--tetra-dentate fashion and the picrate anion binds to nickel(II) in a bidentate mode. The Ni(II) atom displays a distorted octa-hedral coordination with axial elongation. The binuclear mol-ecules are linked by ...

Journal: :Chemical communications 2009
Renhua Qiu Xinhua Xu Yinhui Li Guoping Zhang Lingling Shao Delie An Shuangfeng Yin

Air-stable Lewis acidic micro2-hydroxy bridged binuclear complex of zirconocene pentafluorophenylsulfonate was successfully synthesized and found to show high catalytic efficiency in chemoselective allylation of carbonyl compounds with tetraallyltin in aqueous methanol media.

Journal: :Chemical communications 2009
Fabrice Pointillart Yann Le Gal Stéphane Golhen Olivier Cador Lahcène Ouahab

X-Ray structure, photophysical and magnetic properties have been explored for the binuclear gadolinium(III) coordination complex based on bridging tetrathiafulvalenecarboxylate radical cations [Gd(hfac)(3)(micro-TTF (+)COO(-))](2).

2009
Chun-Sen Liu Xian-Guo Xiao Min Hu

In the title centrosymmetric binuclear Ag(I )complex, [Ag(2)(C(12)H(10)N(4))(2)](ClO(4))(2), each Ag(I) center is two-coordinated by one pyridine and one benzotriazole N-donor atom of two inversion-related 1-(2-pyridylmeth-yl)-1H-benzotriazole (L) ligands. This forms a unique box-like cyclic dimer with an intra-molecular Ag⋯Ag separation of 4.479 (2) Å. Inter-molecular C-H⋯O hydrogen-bonding in...

2008
Chao-Yan Zhang Qian Gao Yue Cui Ya-Bo Xie

In the title centrosymmetric binuclear complex, [Y(2)(C(10)H(6)NO(2))(6)(H(2)O)(4)]·2H(2)O, each Y(III) atom is nine-coordin-ated by nine O atoms from five ligands and two water mol-ecules in a slightly distorted monocapped square-anti-prismatic coordination environment. The Y(III) atoms are separated by a distance of 4.0363 (9) Å. The ligands coordinate in three different modes: chelating, bri...

Journal: :Analytical Sciences: X-ray Structure Analysis Online 2003

Journal: :Chemical communications 2004
Emilio Pardo Kevin Bernot Miguel Julve Francesc Lloret Joan Cano Rafael Ruiz-García Jorge Pasán Catalina Ruiz-Pérez Xavier Ottenwaelder Yves Journaux

An octanuclear copper(II) complex possessing a dimer-of-tetramers structure self-assembles from a binuclear oxamatocopper(II) metallacryptand of the meso-helicate type; its magnetic behaviour is consistent with its unique double-propeller molecular topology.

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