Bridging ligand

Bridging ligand

A bridging ligand is an atom or a polyatomic entity that connects two or more metal centres in a complex. [GoldBookRef|title=bridging ligand|url=http://goldbook.iupac.org/B00741.html] In naming a complex that includes a bridging ligand, the bridging ligand is preceded by "μ."

Virtually all ligands are known to bridge, with the exception of amines and ammonia. [Werner, H., "The way into the bridge: A new bonding mode of tertiary phosphanes, arsanes, and stibanes", Angewandte Chemie, International Edition, 2004, volume 43, pp 938-954.DOI|10.1002/anie.200300627.] Particularly common bridging ligands are:
* OH−,
* S2−,
* NH2−
* CO
* Halides
* Hydride
* Thiolates and alkoxides
* Cyanide

Polyfunctional ligands

Polyfunctional ligands can attach to metals in many ways and thus can bridge metals in diverse ways, including sharing of one atom or using several atoms. Examples of such polyatomic ligands are the oxoanions CO32− and the related Carboxylate, PO43−, and the polyoxometallates.

References


Wikimedia Foundation. 2010.

Игры ⚽ Поможем написать курсовую

Look at other dictionaries:

  • bridging ligand — noun A ligand which is bound to more than one metal centre …   Wiktionary

  • Ligand — This article is about ligands in inorganic chemistry. For ligands in biochemistry, see Ligand (biochemistry). For other uses, see Ligand (disambiguation). Cobalt complex [HCo(CO)4] with five ligands In coordination chemistry, a ligand is an ion… …   Wikipedia

  • Oxo ligand — In coordination chemistry, an oxo ligand is an oxygen atom bound only to one or more metal centers. These ligands can exist as terminal or (most commonly) as bridging atom (Fig. 1). Oxo ligands stabilize high oxidation states of a metal.[1] Fig.… …   Wikipedia

  • IUPAC nomenclature of inorganic chemistry 2005 — The IUPAC Recommendations 2005, Nomenclature of Inorganic Chemistry replaces their previous recommendations Nomenclatureof Inorganic Chemistry, IUPAC Recommendations 1990 (Red Book I) , and where appropriate (sic) Nomenclature of Inorganic… …   Wikipedia

  • coordination compound — Chem. complex (def. 10). Also called coordination complex. * * * ▪ chemistry Introduction  any of a class of substances with chemical structures in which a central metal atom is surrounded by nonmetal atoms or groups of atoms, called ligands… …   Universalium

  • Transition metal dinitrogen complex — Structure of [Ru(NH3)5(N2)]2+ …   Wikipedia

  • Hydroxide — Lewis structure of the hydroxide ion showing three lone pairs on the oxygen atom …   Wikipedia

  • Inner sphere electron transfer — Inner sphere or bonded electron transfer[1] proceeds via a covalent linkage between the two redox partners, the oxidant and the reductant. In Inner Sphere (IS) electron transfer (ET), a ligand bridges the two metal redox centers during the… …   Wikipedia

  • Metal nitrosyl complex — Metal nitrosyl complexes are complexes that contain nitric oxide, NO, bonded to a transition metal.[1] Many kinds of nitrosyl complexes are known, which vary both in structure and coligand. Contents 1 Bonding and structure 1.1 Linear vs bent… …   Wikipedia

  • Dinitrogen complex — A dinitrogen complex is a coordination compound that contains the dinitrogen ligand, N2. In the area of coordination chemistry, the atomic and diatomic forms are distinguished as nitrogen and dinitrogen occur as ligands.Metal complexes of N2 have …   Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”