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- According to the IR spectroscopy results of [Co(NH3)5ONO]Cl2 and [Co(NH3)5NO2]Cl2 complexes, the symmetrical and asymmetrical NO stretching vibrations found for one of the complexes (I) are 1315 and 1430 cm-1, respectively, for the other complex (II). these values are 1065 and 1430 cm-1, respectively. According to the data, complex (I) is …………… and complex (II) is ………….The absorbance of a 0.1 M solution of a complex was 0.15 at max. What is the value of molar absorptivity for this complex? What is the geometry of this complex?Elimination of an L ligand (as the first step of a D substitution mechanism) from a charge - neutral NiL4 complex has very little tendency to occur for L = P(OMe3), but for L = PMe3, it occurs almost completely. Since the two ligand species have approximately the same cone angle, what factors are responsible for this difference?
- 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?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?Show all electronic transition in the spectrum of a d3 complex. Scetch the appropriate spectrum.
- Show how to use the microanalysis data to determine the number of cod (C8H12) ligands per Pd. C, 33.65%; H, 4.24%; N, 0.00%; Pd, 37.27%.To the nearest whole wavenumber, predict the value of delta tet for a tetraquenickel(II) complex and compare its CFSE to the hexaquanickel(II) complexTitanium and vanadium form colored complexes when treated with hydrogen peroxide in 1 M sulfuric acid. The titanium complex has an absorption maximum at 415 nm, and the vanadium complex has an absorption maximum at 455 nm. A 1.00 × 10−3 M solution of the titanium complex exhibits an absorbance of 0.816 at 415 nm and of 0.485 at 455 nm, while a 2.00 × 10−3 M solution of the vanadium complex exhibits absorbances of 0.425 and 0.608 at 415 and 455 nm, respectively. A 1.000-g sample of an alloy containing titanium and vanadium was dissolved, treated with excess hydrogen peroxide, and diluted to a final volume of 1000 mL. The absorbance of the solution was 0.697 at 415 nm and 0.533 at 455 nm. Calculate: a) The concentration of titanium and vanadium in the sample. b) The percentages of titanium and vanadium in the