Coordination Compound

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coordination compound

[kō‚ȯrd·ən′ā·shən ‚käm‚pau̇nd]
(chemistry)
A compound with a central atom or ion and a group of ions or molecules surrounding it. Also known as coordinated complex; Werner complex.

Coordination Compound

 

any of a group of compounds of complex composition. In these compounds, molecules of water, ammonium, acids, and salts are added to the complex ion. Examples of coordination compounds are crystal hydrates of the [Co(NH3)6]2(SO4)3·5H2O, type, various ammoniates, such as Cu[PtCl6]·18NH3, and various salts, such as (NH4)3[RuCl6]NH4NO3. Possessing an electrostatic field, the complex ion attracts dipolar molecules, forming in solution a second or even a third coordination sphere. The formation of coordination compounds can involve oxidation-reduction reactions, Van der Waals forces, and hydrogen bonds. Coordinated molecules or ions, for example, SCN in the compound [(NH3)2PtSCNSCNAg]NO3, can serve as secondary centers of addition.

REFERENCES

Grinberg, A. A. Vvedenie v khimiiu kompleksnykh soedinenii, 2nd ed. Moscow-Leningrad, 1951.
Khimiia koordinatsionnykh soedinenii. Edited by J. Bailar and D. Busch. Moscow, 1960. (Translated from English.)
Nekrasov, B. V. Osnovy obshchei khimii, vol. 3. Moscow, 1970.
References in periodicals archive ?
Vaughan review electrochemistry and its application to synthesis and chemistry of coordination compounds.
Carbon-donor ligands are excluded for cyanides and fulminates; agostic bonding by C-H groups acting as two-electron donors is not covered, presumably because compounds with these kinds of interactions are treated as organometallics rather than coordination compounds.
Work has been done on the transinfluence in Pt(II) chemistry, and there is an interest in the molecular mechanism of carcinostatic drugs which are coordination compounds, with particular emphasis on the field of Pt(II) chemistry centred around cis-(Pt2Cl2(NH3)2) and the Cu(II) thiosemicarbazone area.
com/research/9ceb95/infrared_and_raman) has announced the addition of John Wiley and Sons Ltd's new report "Infrared and Raman Spectra of Inorganic and Coordination Compounds, Part A, Theory and Applications in Inorganic Chemistry, 6th Edition" to their offering.
Summarizing what is known about the chemistry of its biological activity, he covers inorganic and coordination compounds, physico-chemical methods for characterizing native and model compounds, naturally occurring compounds, and the influence of compounds on cellular functions.
The chapters cover every category of material, from organic to coordination compounds, metals and composites, in zero, one, two and three dimensions.
With its emphasis on coordination chemistry but coverage of bioinorganic chemistry and instrumental analysis as well, the authors describe the history of early developments in inorganic chemistry and include five experiments with each topic, covering Werner's notion and the synthesis and analysis of cobalt ammine coordination compounds, molecular geometry and stability through solid and solution phase analysis, substitution reactions, electron transfer reactions, metals in medicine (including the synthesis and biological reactivity of a platinum anti-cancer drug), metals in environmental bioremediation and in molecular biology, and oxidation of a natural production by a catalyst.
He is the author of Infrared and Raman Spectra of Inorganic and Coordination compounds, Fifth Edition (Wiley).
The subsequent chapters deal with the the specifics of chirality as it applies to transition metals, including examples of: chirality at metal, half sandwich compounds, chirality in tetrahedral, alkyne complexes, chiral-at-metal complexes in organic synthesis, including Gladysz, Davies and Libeskind, chiral complexes, homogeneous catalysis by chiral complexes, chiral recognition in coordination compounds, chirality in supramolecular coordination compounds - the new field of chiral materials, including chiral metal conductors and chiral networks based on optically active bricks.
This guide to assigning a name and formula to an inorganic substance introduces the compositional, substitutive, and additive systems of nomenclature, and applies them to inorganic acids and derivatives, coordination compounds, and solids.
com/reports/c61745) has announced the addition of Infrared and Raman Spectra of Inorganic and Coordination Compounds, Part A and Part B, Two Volume Set, 6th Edition to their offering.
Werner's Notion--Creating the Field: Synthesis and Analysis of Cobalt Ammine Coordination Compounds.

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