- published: 04 May 2015
- views: 4560
Metal aquo complexes are coordination compounds containing metal ions with only water as a ligand. These complexes are the predominant species in aqueous solutions of many metal salts, such as metal nitrates, sulfates, and perchlorates. They have the general stoichiometry [M(H2O)n]z+. Their behavior underpins many aspects of environmental, biological, and industrial chemistry. This article focuses on complexes where water is the only ligand ("homoleptic aquo complexes"), but of course many complexes are known to consist of a mix of aquo and other ligands.
Most common are the octahedral complexes with the formula [M(H2O)6]2+ and [M(H2O)6]3+. Some members of this series are listed in the table below. A few aquo complexes exist with coordination numbers lower than six. Palladium(II) and platinum(II), for example, form square planar aquo complexes with the stoichiometry [M(H2O)4]2+. Aquo complexes of the lanthanide trications are eight- and nine-coordinate, reflecting the large size of the metal centres.
Reactions of metal aqua ions
Metal aquo complex
Complex Metal Aqua Ion reaction
Copper(II) complexes and precipitates
Complex Formation The Metal-Ligand Bond
Mod-01 Lec-22 d-d Transitions
Coordination complex
CoCl2 + KSCN
complex ion formation
Mod-01 Lec-01 Introduction to Organometallic chemistry
Some basic stuff here that won't harm you like acids. No, seriously, this video looks at the reactions regarding aqua metal ions with hydroxide and ammonia, carbonates and amphoteric properties of aluminium hydroxide and cobalt hydroxide. Complete with all the reactions and explanations that you need!
Metal aquo complex Metal aquo complexes are coordination compounds containing metal ions with only water as a ligand.These complexes are the predominant species in aqueous solutions of many metal salts, such as metal nitrates, sulfates, and perchlorates. -Video is targeted to blind users Attribution: Article text available under CC-BY-SA image source in video https://www.youtube.com/watch?v=oJZM1C4Bn44
【FeCl3/CuSO4/CrSO4/CoCl2/FeSO4/Al2(SO4)3】 react with 【NaOH/Na2CO3/NH3】 did in chemistry lesson 4th March 2015.
A dilute aqueous solution of copper(II) sulfate, in which the Cu(II) ions are present as the hexaaquo complex, is mixed with several ligands. The latter replace water molecules giving rise to colored Cu(II) complexes. The relative stability of four of these complexes is demonstrated adding the ligands in sequence. Lastly, several precipitation reactions are shown, leading to different insoluble Cu(II) compounds.
Co-ordination chemistry (chemistry of transition elements) by Prof. D. Ray,Department of Chemistry and Biochemistry,IIT Kharagpur.For more details on NPTEL visit http://nptel.ac.in
In chemistry, a coordination complex or metal complex consists of a central atom or ion, which is usually metallic and is called the coordination centre, and a surrounding array of bound molecules or ions, that are in turn known as ligands or complexing agents. Many metal-containing compounds, especially those of transition metals, are coordination complexes. This video is targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video
Cobalt complexes Instruments: glass, test tube Chemicals: cobalt(II)chloride, potassium thiocyanate Experiment description: An aqueous solution of cobalt(II)chloride is poured in the test tube. After that, the crystals of potassium thiocyanate are added. This creates a new compound, cobalt(II) thiocyanate, which colors the bottom of the tube in blue. When the solution, together with crystals is poured into a glass with distilled water, the crystals turn pink due to formation of cobalt aquo complex. Conclusion: Change in color (from blue to pink) indicates the creation of cobalt aquo complex.
Introduction to Organometallic Chemistry by Prof. A.G. Samuelson,Department of Chemistry and Biochemistry,IISc Bangalore.For more details on NPTEL visit http://nptel.ac.in
Some basic stuff here that won't harm you like acids. No, seriously, this video looks at the reactions regarding aqua metal ions with hydroxide and ammonia, carbonates and amphoteric properties of aluminium hydroxide and cobalt hydroxide. Complete with all the reactions and explanations that you need!
Metal aquo complex Metal aquo complexes are coordination compounds containing metal ions with only water as a ligand.These complexes are the predominant species in aqueous solutions of many metal salts, such as metal nitrates, sulfates, and perchlorates. -Video is targeted to blind users Attribution: Article text available under CC-BY-SA image source in video https://www.youtube.com/watch?v=oJZM1C4Bn44
【FeCl3/CuSO4/CrSO4/CoCl2/FeSO4/Al2(SO4)3】 react with 【NaOH/Na2CO3/NH3】 did in chemistry lesson 4th March 2015.
A dilute aqueous solution of copper(II) sulfate, in which the Cu(II) ions are present as the hexaaquo complex, is mixed with several ligands. The latter replace water molecules giving rise to colored Cu(II) complexes. The relative stability of four of these complexes is demonstrated adding the ligands in sequence. Lastly, several precipitation reactions are shown, leading to different insoluble Cu(II) compounds.
Co-ordination chemistry (chemistry of transition elements) by Prof. D. Ray,Department of Chemistry and Biochemistry,IIT Kharagpur.For more details on NPTEL visit http://nptel.ac.in
In chemistry, a coordination complex or metal complex consists of a central atom or ion, which is usually metallic and is called the coordination centre, and a surrounding array of bound molecules or ions, that are in turn known as ligands or complexing agents. Many metal-containing compounds, especially those of transition metals, are coordination complexes. This video is targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video
Cobalt complexes Instruments: glass, test tube Chemicals: cobalt(II)chloride, potassium thiocyanate Experiment description: An aqueous solution of cobalt(II)chloride is poured in the test tube. After that, the crystals of potassium thiocyanate are added. This creates a new compound, cobalt(II) thiocyanate, which colors the bottom of the tube in blue. When the solution, together with crystals is poured into a glass with distilled water, the crystals turn pink due to formation of cobalt aquo complex. Conclusion: Change in color (from blue to pink) indicates the creation of cobalt aquo complex.
Introduction to Organometallic Chemistry by Prof. A.G. Samuelson,Department of Chemistry and Biochemistry,IISc Bangalore.For more details on NPTEL visit http://nptel.ac.in