4. Consider the tetrahedral complex Ni(CO)a, see structure below A. Determine the symmetry of all normal modes of vibration for Ni(CO). B. Determine the infrared and Raman activity of the normal modes. C. Using internal coordinates, determine which of the following group vibrations are allowed by symmetry to contribute to cach normal mode. {Vco, Vac, ÔMco, dese). (Hints:. There are eight MCO and 6 CMC angles, the characters of the C) operation for MCO and CMC representations are -1 and 0, respectively).

4. Consider the tetrahedral complex Ni(CO)a, see structure below A. Determine the symmetry of all normal modes of vibration for Ni(CO). B. Determine the infrared and Raman activity of the normal modes. C. Using internal coordinates, determine which of the following group vibrations are allowed by symmetry to contribute to cach normal mode. {Vco, Vac, ÔMco, dese). (Hints:. There are eight MCO and 6 CMC angles, the characters of the C) operation for MCO and CMC representations are -1 and 0, respectively).

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter14: Applications Of Ultraviolet-visible Molecular Absorption Spectrometry

Section: Chapter Questions

Problem 14.7QAP: A 3.03-g petroleum specimen was decomposed by wet ashing and subsequently diluted to 500 mL in a...

See similar textbooks

Similar questions

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.
(a) What coordination geometries could [AuI4]− take and how might it differ from the [AuCl4]− ion? (b) Which of Ag(NO3) and Ag2S would be expected to be more effective at removing bromide, Br−, from solution? Explain your reasoning.
CFT is applicable to molecules in geometries other than octahedral. In octahedral complexes, remember that the lobes of the eg set point directly at the ligands. For tetrahedral complexes, the d orbitals remain in place,but now we have only four ligands located between the axes (as given). None of the orbitals points directly at the tetrahedral ligands. However, the eg set (along the Cartesian axes) overlaps with the ligands less than does the t2g set. By analogy with the octahedral case, predict the energy diagram for the d orbitals in a tetrahedral crystal field. To avoid confusion, the octahedral eg set becomes a tetrahedral e set, and the octahedral t2g set becomes a t2 set.
Sketch structure of Mo(DMe) Cl2 (NMe,)2 , thhen apply ean to this complex showing ligand analysis and oxidation state analysis
Construct an MO correlation diagram for the complex ion[Ni(NH3)6]2+ and populate the orbitals with electrons. Do youexpect p bonding to be important for this complex? Whatfeatures of this diagram correspond to those predicted usingcrystal field theory? What kind of bonding would VB theorypredict for d8 complexes, and how does MO theory accountfor the bonding more accurately, even qualitatively?
Explain Jhane Teller distortions for Co(II) octahedral LS and HS complexes?
Determine the symmetry of the orbital groups for the donor sigma bonds (σ) of the ligand in an octahedral complex. Construct an MO diagram for the formation of this complex and indicate which orbitals determine the Δo. Clearly indicate the procedure.
Among the (pi) acid ligands of groups 15 and 16, which is the most similar, regarding the capacity ofretro-donation, to the CO? Why?
Compare the CsCl and CaF2 lattices. 1. Which of the Bravais lattices does each structure exhibit? 2. Describe the coordination environment of the anions (CN and shape of the environment) and for the cations.
Iron by nature is paramagnetic metal. How the paramagnetic effect nature of Fe can be modified? Find out at least one method for this. Explain the method and give an example along with
Many coordination complexes are present in our body. These complexes take part in different biological processes in our body. Some examples are vitamin B12, haemoglobin, enzymes like carbonic anhydrase etc. First example we are going to see is cobalamine. For the coordination compound, briefly explain the following points completely including the application. i) The application of the coordination compounds. ii) the oxidation state of the central atoms. iii) type of ligands present in the compounds. iv) coordination number of the compounds.
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.