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- Explain Jhane Teller distortions for Co(II) octahedral LS and HS complexes?
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- A 3.03-g petroleum specimen was decomposed by wet ashing and subsequently diluted to 500 mL in a volumetric flask. Cobalt was determined by treating 25.00-mL aliquots of this diluted solution as follows: Assume that the Co(II)-ligand chelate obeys Beer’s law, and calculate the percentage of cobalt in the original sample.What is the LFSE for the [Re(H2O)6]3+complex, knowing that ΔΔo = 33000 cm-1 and P= 15000 cm-1 ?Consider the octahedral complex [FeBr6] 4−. In water solution it has an absorption peak at 864 nm with a molar absorptivity (ε) of 3.6 L mol-1 cm-1 . (a) What is the energy (in wavenumbers, cm-1 ) of the absorption peak? Show all work
- Q5 a) Explain the d-d transitions for [Ti(H2O)6]3+ b) Explain Jhane Teller distortions for Co(II) octahedral LS and HS complexes?Consider the octahedral complex [FeBr6] 4−. In water solution it has an absorption peak at 864 nm with a molar absorptivity (ε) of 3.6 L mol-1 cm-1 . (I have a, b, and c, I need help with d, e, and f.) (a) What is the energy (in wavenumbers, cm-1 ) of the absorption peak? Show all work. (b) How many valence d electrons does the metal center have? Justify your answer. (c) How many unpaired electrons per molecule would a magnetic susceptibility experiment predict? What would the S number be for this transition metal center? Justify your answers. (d) What electronic transition results from absorption of 864-nm light? (e) Calculate the ligand stabilization energy (in units of ∆o) and units of coulombic (Πc) energy. (f) How would the ligand field strengths (∆o) of [Fe(NH3)6] 2+ and [Fe(bipy)3] 2+ differ from that of [FeBr6] 4−? Why?Draw structures for the following complexes: fac-triaquacyanidodinitrito-kN-chromate(III) ion di-m-oxidobis(tetramminecobalt(III)) ion
- What structural distortions would you expect to occur in the complex LnM( eta 4- butadiene) if the ligands L were made more electron releasing?Consider the octahedral complex [FeBr6] 4−. In water solution it has an absorption peak at 864 nm with a molar absorptivity (ε) of 3.6 L mol-1 cm-1 . (a) What is the energy (in wavenumbers, cm-1 ) of the absorption peak? Show all work. (b) How many valence d electrons does the metal center have? Justify your answer. (c) How many unpaired electrons per molecule would a magnetic susceptibility experiment predict? What would the S number be for this transition metal center? Justify your answers. (d) What electronic transition results from absorption of 864-nm light? (e) Calculate the ligand stabilization energy (in units of ∆o) and units of coulombic (Πc) energy. (f) How would the ligand field strengths (∆o) of [Fe(NH3)6] 2+ and [Fe(bipy)3] 2+ differ from that of [FeBr6] 4−? Why?[V(H2O)6]3+, has absorption bands at 17,800 and 25,700 cm-1. Please answer the following questions using a relevant Tanabe-Sugan diagram. a) How many electronic transitions are possible for this complex? b) Identify these transitions and clearly label the states.
- Is F3C-M ligand a pi acceptor? why?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)I'm struggling to understand magnetic moments. If [Mn(NCS)6]4- shiwed a value if 6.06 micro B, I guess that the complex would be low-spin. How would I show this and relate it to an energy level diagram showing the splitting of 3d orbitals? thankyou for any help .
