A special class of compounds in which a electron deficient central atom (usually a metal ion) is bonded to many electron donors called ligands. These compounds are highly stable and are widely found in nature. They also have a wide variety of industrial applications.
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What Could Formations of Linkage Isomers of [Co(NH3)NO2]^2+ be like ?
I am trying to draw the structure of this complex [Co(NH3)NO2]^2+ ,however I am not sure if the linkage isomers of this complex like this ;
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Total magnetic moment of atom
Whenever I read about coordination compounds in my textbooks, I always find a discussion about spin-only magnetic moment which is given by $\sqrt{n(n+2)}$ BM,
Where $n$ is the number of unpaired ...
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Strongest chloride complex as perdicted by HSAB theory
Why won't $\ce{Ni^2+}$ form a complex with $\ce{Cl-}$, while the ions $\ce{Cu^2+}$ and $\ce{Co^2+}$ form the complexes $\ce{[CuCl4]^2-}$ and $\ce{[CoCl4]^2-}$?
According to the HSAB theory, ...
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60 views
Which d-orbital configurations form an octahedral complex?
With reference to crystal field splitting in octahedral complexes, my textbook shows the following table of distribution of $d$-orbital electrons in octahedral complexes, based on the energy ...
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56 views
Bonding in a bridged metal carbonyl
Can someone please explain the bonding in a bridged metal carbonyl (like diiron nonacarbonyl)?
I cannot understand what kind of bonds (sigma/pi) exist between the bridging carbonyls and the metals.
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What does the eta notation mean in the naming of a transition metal complex?
I am reading a paper (Gutel et al., J. Mater. Chem. 2007, 17, 3290-3292) and I have come across the following reaction:
In organic solvents, the decomposition under mild conditions of
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Why do transition elements make colored compounds?
Why do transition metals element make colored compound both in solid form and in solution? Is it related with their electrons or something else?
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Tetrahedral or Square Planar
How can one predict whether a given complex ion will be square planar or tetrahedral when its coordination number is 4 using crystal field theory ?
Is it possible to theoretically predict this?
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Normal Spinel and Inverse Spinel
According to my notes, [OCTAHEDRAL SITE STABILIZATION ENERGY (OSSE)], sterical effects and electronic effects in stability create a confusion in this theory. However, we are able to solve this problem ...
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Complexes formed by Lanthanides and Actinides
A very simple test for the presence of alcohols in the lab involves adding Ceric(IV) Ammonium Nitrate solution which gives a pinkish red colour in the presence of alcohol.
When I looked up the ...
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What is the meaning of '(en)'?
What is the meaning of $ (en) $ on this two coordination compounds:
$[Co(en)_2(NO_2)_2]Cl$
$[Cd(en)_2(CN)_2]$
Is it a type of compound? If yes, what is the meaning?
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MO-Scheme of $\ce{SCN-}$ and its bonding properties when used as a ligand
I tried to figure out the MO-scheme of the tetragonal-bipyramidal complex trans-$\ce{[Co(en)2(NCS)2]SCN}$ in which the isothiocyanate ligands are bound to the $\ce{Co^3+}$-Ion in $\eta^{1}$-mode (en = ...
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How do copper sulphate and the like change crystal structure on adding water of hydration?
Copper sulphate, in its hydrated form, is crystalline, whereas the anhydrous form is amorphous.
Gypsum has a similar story-- on heating the crystalline dihydrate we get an amorphous hemihydrate. ...
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What are the mechanisms for capture of $\ce{As(III)}$ and $\ce{As(V)}$ by magnetite from water?
Magnetite, $\ce{Fe3O4}$ is able to capture $\ce{As(III)}$ and $\ce{As(V)}$ from drinking water through the following mechanisms.
Bidentate-binuclear complex
Monodentate-binuclear complex ...
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How to understand this form of writing the solution: (some salt • n H₂O)?
For example — "high purity chloride salt of Zinc (ZnCl₂ . 2 H₂O)" or "various concentrations of FeCl₂ . 4 H₂O". What does the number before H₂O mean?
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686 views
Why is iron in the brown ring compound in a +1 oxidation state?
In the standard brown ring test for the nitrate ion, the brown ring is $$\ce{[Fe(H2O)5 (NO)]^{2+}}$$
In this compound, the nitrosyl ligand is positively charged, and iron is in a $+1$ oxidation ...
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Why does benzene bend in this reaction?
From here
I can see why hapticity changes here, but not why it is necessary for the benzene ring to bend. The resonance energy of benzene is pretty large, and there's no balancing increase in ...
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Is aqueous medium necessary for complex formation? if so, why?
If dry ammonia gas is passed through anhydrous copper sulfate, will it turn blue (due to the formation of tetraamminecopper(II) complex)? Or will silver chloride form diamminesilver(I) complex in ...
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How may copper acetate ligands be manipulated to change colors?
I have a solution of copper acetate and I would like to play around with the ligands to get different colors.
Background: The copper acetate was made through mixing vinegar (5% acetic acid), NaCl, ...
