In chemistry, metal aquo complexes are coordination compounds containing metal ions with only water as a ligand. These complexes are the predominant species...
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Some of the simplest members of such complexes are described in metal aquo complexes, metal ammine complexes, Examples: [Co(EDTA)]−, [Co(NH3)6]3+, [Fe(C2O4)3]3-...
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water in metal aquo complexes to methyl groups as in tetraethyl lead. Usually metal complexes consist of a mixture of ligands. Toxic metal complexes can be...
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than water, metal ammine complexes are stabilized relative to the corresponding aquo complexes. For similar reasons, metal ammine complexes are less strongly...
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oxygens and the protons of aquo ligands. Stoichiometrically simple complexes are often multimetallic. One family are the basic metal acetates, of the stoichiometry...
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hydrates. The nitrate anion often binds to the metal, especially for those salts with fewer than six aquo ligands. Nitrates are uncommon in nature, so few...
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bromopentaamminecobalt(III) undergoes the following aquation reaction to give a metal aquo complex: [Co(NH3)5Br]2+ + H2O → [Co(NH3)5(H2O)]3+ + Br− This aquation reaction...
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commonly encountered as the green hexahydrate, Fe(NO3)2·6H2O, which is a metal aquo complex, however it is not commercially available unlike iron(III) nitrate...
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Hydroxide (section Alkali metals)
derivatives. Many can be made by deprotonation of the corresponding metal aquo complex. LnM(OH2) + B ⇌ LnM(OH) + BH+ (L = ligand, B = base) Vanadic acid...
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Ferrous (redirect from Ferrous metal)
to the more soluble iron(II).) In contrast to iron(III) aquo complexes, iron(II) aquo complexes are soluble in water near neutral pH.[citation needed]...
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Hydrolysis (section Metal aqua ions)
contribute to carcinogenesis and ageing. Metal ions are Lewis acids, and in aqueous solution they form metal aquo complexes of the general formula M(H2O)nm+....
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Bioinorganic chemistry (redirect from Metal metabolism)
these are metalloproteins. Often the reacting water is a ligand (see metal aquo complex). Examples of hydrolase enzymes are carbonic anhydrase, metallophosphatases...
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Octahedral molecular geometry (redirect from Octahedral complex)
presence of acid or base. Addition of concentrated HCl converts the aquo complex back to the chloride, via an anation process. Octahedral clusters AXE...
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Copper (redirect from Copper sheet metal)
(speed of water ligands attaching and detaching) for any transition metal aquo complex. Adding aqueous sodium hydroxide causes the precipitation of light...
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character makes it a common ligand in transition metal complexes, examples of which include metal aquo complexes such as Fe(H 2O)2+ 6 to perrhenic acid, which...
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sulfate behave identically. These aqueous solutions consist of the metal aquo complex [Zn(H2O)6]2+ and SO2− 4 ions. Barium sulfate forms when these solutions...
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material. All the iron(II) sulfates dissolve in water to give the same aquo complex [Fe(H2O)6]2+, which has octahedral molecular geometry and is paramagnetic...
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Copper compounds (section Cu–O and Cu–N complexes)
(speed of water ligands attaching and detaching) for any transition metal aquo complex. Adding aqueous sodium hydroxide causes the precipitation of light...
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A transition metal nitrate complex is a coordination compound containing one or more nitrate ligands. Such complexes are common starting reagents for...
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Salicylaldoxime (section Extraction of metals)
metal aquo complex and aldoxime are liberated. In this way the ligand is used as a recyclable extractant. It typically forms charge-neutral complexes...
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Nickel (category Transition metals)
forms the metal aquo complex [Ni(H2O)6]2+. Dehydration of NiCl2·6H2O gives yellow anhydrous NiCl2. Some tetracoordinate nickel(II) complexes, e.g....
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other amino acids. Commonly amino acid complexes are prepared by ligand displacement reactions of metal aquo complexes and the conjugate bases of amino acids:...
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Cobalt (category Transition metals)
simple compounds is +2 (cobalt(II)). These salts form the pink-colored metal aquo complex [Co(H 2O) 6]2+ in water. Addition of chloride gives the intensely...
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which metal ions form polymeric oxides in aqueous solution. The phenomenon is important for understanding the relationship between metal aquo complexes and...
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tetrahedral anions and cations as well their interactions with the metal aquo complex [M(H2O)6]2+. Perhaps the best-known is Mohr's salt, ferrous ammonium...
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Sodium chloride (category Alkali metal chlorides)
become surrounded by polar water molecules. These solutions consist of metal aquo complex with the formula [Na(H2O)8]+, with the Na–O distance of 250 pm. The...
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and cations from a dissolved salt in a solvent. Metal ions in aqueous solutions form metal aquo complexes. This number can be determined by various methods...
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Aluminium chloride (category Metal halides)
[Al(H2O)6]Cl3 → Al(OH)3 + 3 HCl + 3 H2O Like metal aquo complexes, aqueous AlCl3 is acidic owing to the ionization of the aquo ligands: [Al(H2O)6]3+ ⇌ [Al(OH)(H2O)5]2+...
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CoSO4(H2O) + 5 H2O CoSO4(H2O) → CoSO4 + H2O The hexahydrate is a metal aquo complex consisting of octahedral [Co(H2O)6]2+ ions associated with sulfate...
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ubiquitous. In all metal aquo-complexes [M(H2O)n]m+, the bonding between water and the metal cation is described as a coordinate covalent bond. Metal-ligand interactions...
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