a) The formation of dichlorobis(ethylenediamine)cobalt(III) nitrate is described as a Lewis acid-base reaction. i) Identify the donor atom. Justify. i) Write the chemical formula for the coordination compound above. b) Both bidentate and polydentate ligands are categorized as chelating agents and enable to form chelates when reacted with metal cation.
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- the spectrochemical series allows us to explain the variety ofcolors observed in transition metal complexes. But in practice, someone attempting to predictthe properties of compounds can occasionally be frustrated by various complicating factors.For instance, the nitrite ligand is presented as having a high field strength, but that is only whenit is the nitrogen of the nitrite that is coordinating to the metal center. Nitrite is also capable ofbinding to the metal center through an oxygen, and when this happens, nitrite is a low fieldstrength ligand. Furthermore, many metals initially precipitate as simple ionic salts before theyhave a chance to form more soluble complex ions. And occasionally, unexpected redoxreactions can lead to complex mixtures. Despite these complications, the spectrochemical series remains a powerful predictivetool for inorganic chemists. New ligands are being developed all the time, and each new ligandneeds to be placed, at least approximately, on the…the spectrochemical series allows us to explain the variety ofcolors observed in transition metal complexes. But in practice, someone attempting to predictthe properties of compounds can occasionally be frustrated by various complicating factors.For instance, the nitrite ligand is presented as having a high field strength, but that is only whenit is the nitrogen of the nitrite that is coordinating to the metal center. Nitrite is also capable ofbinding to the metal center through an oxygen, and when this happens, nitrite is a low fieldstrength ligand. Furthermore, many metals initially precipitate as simple ionic salts before theyhave a chance to form more soluble complex ions. And occasionally, unexpected redoxreactions can lead to complex mixtures. The complex that copper forms with chloride ions is tetrahedral. Write the chemical formula for this complex. Thoroughly describe the energy diagram for the d orbitals.the spectrochemical series allows us to explain the variety ofcolors observed in transition metal complexes. But in practice, someone attempting to predictthe properties of compounds can occasionally be frustrated by various complicating factors.For instance, the nitrite ligand is presented as having a high field strength, but that is only whenit is the nitrogen of the nitrite that is coordinating to the metal center. Nitrite is also capable ofbinding to the metal center through an oxygen, and when this happens, nitrite is a low fieldstrength ligand. Furthermore, many metals initially precipitate as simple ionic salts before theyhave a chance to form more soluble complex ions. And occasionally, unexpected redoxreactions can lead to complex mixtures. Despite these complications, the spectrochemical series remains a powerful predictivetool for inorganic chemists. New ligands are being developed all the time, and each new ligandneeds to be placed, at least approximately, on the…
- Regarding the formation of the tetracyanetoniquelate (II) complex answer:a.Demonstrates hybridization according to the valence bond theory and indicate itsgeometry.b. Demonstrate and explain the unfolding of the crystalline field in the formation of this ioncomplex.c. Demonstrate through a diagram of molecular orbitals and explain the formation of that ioncomplex according to the ligand field theoryThere are two different crystalline vanadium fluorides, in both the V is in an environment octahedral. One is blue and the other is yellow. The oxidation state of vanadium in one of them is +2, and on the other, +3. Deduce, from the different crystal field doublings, which is which (No numerical calculation necessary, use spectrochemical series and spectrum electromagnetic and / or colored circle to justify your answer).Nickelocene is paramagnetic with two unpaired electrons. Rationalise this and suggest a bonding scheme, which accounts for it. Do start with the symmetry and the molecular orbitals of the Cp- ligand.
- In general, would you expect EDTA4- to coordinate to transition metal ions more or less strongly than ethylenediamine does? Justify your answer with a reason other than the different charges on the two ligands.By using the given 1) electronic absorption spectrum, 2) the Tanabo-Sugano diagram for d3 complex in octahedral ligand field and 3) the absorption/emission spectra, explain the following: a) Ligand field states (to support your explanation show the filling of the orbitals) b) Radiative transitions (to support your explanation refer to fluorescence, phosphorescence and Stokes’ shift)What is a distinguishing feature of the reaction coordinate for ligand substitution at square planar platinum in the case of ethylene as the ligand that is trans to the leaving group?
- The anticancer drug cisplatin, cis-[Pt(NH3)2Cl2] (see Figs. 8.12b and 8.33),can be prepared from K2PtCl6 via reduction with N2H4 (hydrazine), givingK2PtCl4, followed by replacement of two chloride ion ligands with ammonia. Give systematic names to the three platinum complexes referred to inthis statement.flouroquinolones like levofloxacin (of the underlying structure) are antibiotics with broad antibacterial spectrum widely used nowadays to treat bacterial infections. unfortunately, they form water insoluble complexes in the GIT when taken orally together with divalent metal supplements like iron as sulfate salt [in the second oxidation state a. draw the structure of the resulted metals complexes with levofloxacine.b. expect the electronic configuration showing the complexation orbitals and sharing for each metal casec. how many coordination covalent bond are expected form such complexation and the type of hybridization expectedd. what would be the influence of such complexation on the bioavailability of both the metals and the antibiotice. which functional groups in the levofloxacin structure are expected to be the ligands in the resulted complexes.f. which type of chelating agent levofloxine would be expected in these cases.Nickelocene is paramagnetic with two unpaired electrons. Why is it so? Rationallise it and back up your answers and suggest a bonding scheme, which accounts for the two unpaired electrons. Do start with the symmetry and the molecular orbitals of the Cp- ligand.