To the nearest whole wavenumber, predict the value of delta tet for a tetraquenickel(II) complex and compare its CFSE to the hexaquanickel(II) complex
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To the nearest whole wavenumber, predict the value of delta tet for a tetraquenickel(II) complex and compare its CFSE to the hexaquanickel(II) complex
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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 ………….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)Describe the IR active symmetric and asymmetric Pt-Cl stretching vibrations for cis-[Pt(NH3)2Cl2] ans trans-[Pt(NH3)2Cl2]complexes. ???
- Predict whether the following complexes would show Jahn-Teller distortion: Ammonium pentachlorooxidochromate(V), meff = 1.8 mB Potassium hexaiodidomanganate(IV), meff = 3.8 mB Potassium hexachoridocuprate(II), meff = 1.8 mB Hexaaquamanganese(II) chloride, meff = 6.0 mBThe 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?Show all electronic transition in the spectrum of a d3 complex. Scetch the appropriate spectrum.
- 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?For [Co(NH3)6]2+ ΔO = 10100 cm-1 and B = 920 cm-1. How many electronic absorption peaks do you expect for the complex and at what energy in kJ.mol-1 are these absorptions? Which type of irradiation is absorbed?Could someone provide a step by step introduction into how to create a complex splitting diagram got the following hydrogen in red. Trying to grasp an understanding for NMR and i am having trouble. Thank you in advance.
- Predict the multiplicity/splitting pattern and indicate the integration value for each Hydrgen present in the boxes. Provide the simplest ratio. Use the structure to define Ha, Hb, Hc, etc.Given the Tanabe-Sugano diagram below for a d3 complex.Which of the following transitions corresponds to the ∆o?A.4A2g → 4T1g (F)B. 4T2g → 4T1g (P) C.4A2g → 4T1g (P) D.4A2g → 4T2gConsider the solvatochromic complex, [Mo(bipy)(CO)4]. The complex has a MLCT peak in the UV-vis spectrum. This peak is at 533 nm in acetonitrile solvent and at 584 nm in benzene solvent. In a 50:50 acetonitrile:benzene mixture, the peak is at 559 nm. Is the mixture of acetonitrile and benzene immediately surrounding the [Mo(bipy)(CO)4] molecules less than, equal to, or greater than a 50:50 mixture (acetonitrile:benzene)? Justify your answer. (HINT: Do you need to convert the wavelengths to a more appropriate unit?)