bridging ligand


Also found in: Wikipedia.

bridging ligand

[′brij·iŋ ‚līg·ənd]
(organic chemistry)
A ligand in which an atom or molecular species which is able to exist independently is simultaneously bonded to two or more metal atoms.
References in periodicals archive ?
Depending on the type of the bridging ligand L, the yield of complexes 1-3 was between 35 and 40%.
As a continuation of our interest in the reactions between methionine- and histidine-containing peptides and dinuclear Pt(II) complexes with six-membered aromatic diazines as bridging ligands, in the present study, we describe synthesis and characterization of three new dinuclear platinum(II) complexes, [[{Pt(en)Cl}.sub.2]([mu]-qx)][Cl.sub.2] x 2[H.sub.2]O (1), [[{Pt(en)Cl}.sub.2]([mu]-qz)][(Cl[O.sub.4]).sub.2] (2), and [[{Pt(en)Cl}.sub.2]([mu]-phtz)] [Cl.sub.2] x 4[H.sub.2]O (3) (qx = quinoxaline, qz = quinazoline, phtz = phthalazine, and en = ethylenediamine).
It behaves like a monodentate ligand at lower pH and at higher pH it serves as a bridging ligand. The deprotonated from of imidazole is involved in the active site of bovine erythrocyte superoxide dismutase (BESOD) [12].
It is well known that the cyanide ion can coordinate to one metal ion through the carbon atom acting as a monodentate ligand or connect two metal ions as a bridging ligand through both the carbon and nitrogen atoms.
6 for the subscript) to Ni-[SI.sub.1914] form may not proceed in one step as indicated, but Ni-[B.sub.1946] may be reduced (+ [e.sup.-]) followed by the removal of the bridging ligand (-O[H.sup.-]).
Vos, "The role of the bridging ligand in photocatalytic supramolecular assemblies for the reduction of protons and carbon dioxide," Coordination Chemistry Reviews, vol.
Keywords: S-Propyl-L-cysteine, XAFS analysis, Metal complexes, Coordination polymers, Bridging ligand.
Karagiannidis, "Diphosphines as bridging ligands in polymeric and dimeric thione-S-ligated Ag(I) nitrate complexes," Inorganica Chimica Acta, vol.
Steel, "Mono- and dinuclear ruthenium complexes of bridging ligands incorporating two di-2pyridylamine motifs: synthesis, spectroscopy and electrochemistry," Polyhedron, vol.
The bite angle [N1-Pd1-O1 = 93.04(4)[degrees]] is in good agreement with those found in a structurally related mononuclear complex with salicylaldiminato ligands as bridging ligands [12,13].
Molecule-based magnets are usually composed of metal ions with spin and bridging ligands mediating the magnetic interaction between metal ions.