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Coordination sphere information


cis-[CoCl2(NH3)4]+
The NH3 and Cl groups form a coordination sphere around the central cobalt ion.

In coordination chemistry, the first coordination sphere refers to the array of molecules and ions (the ligands) directly attached to the central metal atom. The second coordination sphere consists of molecules and ions that attached in various ways to the first coordination sphere.

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Coordination sphere

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second coordination sphere consists of molecules and ions that attached in various ways to the first coordination sphere. The first coordination sphere refers...

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Coordination complex

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chelation, complexation, and coordination. The central atom or ion, together with all ligands, comprise the coordination sphere. The central atoms or ion...

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Metal ions in aqueous solution

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molecules. The latter are said to reside in the second coordination sphere. The second coordination sphere is not a well defined entity for ions with charge...

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Vanadinite

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Chloride coordination sphere...

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Potassium sulfate

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sulfate adopts the typical tetrahedral geometry. Structure of β-K2SO4. Coordination sphere of one of two types of K+ site. SO4 environment in β-K2SO4. It does...

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Copper protein

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protein. Two 2-histidines, 1 methionine and 1 cysteine present in the coordination sphere. Example for Type-I blue copper protein are plastocyanine , azurin...

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Alkali metal

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said to reside in the second coordination sphere. However, for the alkali metal cations, the second coordination sphere is not well-defined as the +1...

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Coordination geometry

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occurrence in complexes found as discrete units in compounds and coordination spheres around atoms in crystals (where there is no discrete complex). IUPAC...

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Template reaction

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used in coordination chemistry. The template effects emphasizes the pre-organization provided by the coordination sphere, although the coordination modifies...

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Cyanometalate

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a highly basic and small ligand, hence it readily saturates the coordination sphere of metal ions. The resulting cyanometallate anions are often used...

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Water of crystallization

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Simon A. Cotton (2018). "Iron(III) Chloride and Its Coordination Chemistry". Journal of Coordination Chemistry. 71 (21): 3415–3443. doi:10.1080/00958972...

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Tungsten disulfide

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isotypic with MoS2, instead with W atoms situated in trigonal prismatic coordination sphere (in place of Mo atoms). Owing to this layered structure, WS2 forms...

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Carbene radical

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reactivity to electron-deficient substrates. Furthermore, second coordination sphere hydrogen-bonding interactions give rise to faster reactions because...

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Substitution reaction

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rate determining step that involves release of a ligand from the coordination sphere of the metal undergoing substitution. The concentration of the substituting...

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Caesium sulfate

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"density-gradient") centrifugation. It is isostructural with potassium salt. Coordination sphere of one of two types of Cs+ site in Cs2SO4. Environment of sulfate...

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Anation

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reactions often invoke ion-pairing of the entering anion in the second coordination sphere followed by dissociation of the aquo ligand. IUPAC, Compendium of...

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Barium hydroxide

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Coordination sphere about an individual barium ion in Ba(OH)2.H2O....

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Lanthanide

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that the later lanthanides have more water molecules in the second coordination sphere. Complexation with monodentate ligands is generally weak because...

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Wittig reagents

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1021/om00066a021. Schmidbaur, H. (1983). "Phosphorus Ylides in the Coordination Sphere of Transition Metals: An Inventory". Angewandte Chemie International...

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Metalloprotein

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from three histidine units. The fourth coordination site is occupied by a water molecule. The coordination sphere of the zinc ion is approximately tetrahedral...

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Ligand

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bulk can prevent the coordination of certain ligands. Chiral ligands are useful for inducing asymmetry within the coordination sphere. Often the ligand is...

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Potassium chromate

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adopts the typical tetrahedral geometry. Structure of β-K2CrO4. Coordination sphere of one of two types of K+ site. The environment about the tetrahedral...

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Supramolecular assembly

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in coordination chemistry, metal ions (usually transition metal ions) exist in solution bound to ligands, In many cases, the coordination sphere defines...

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