Elongation and Compression
along Zaxis depend on the orbital splitting , when last electron
goes to d(x2-y2) then it show elongation and when it goes into dz2
give compression .
2)- The distortion in Cu2+ complex is due to "Jahn Teller effect" .
3)- Other metals which have unsymmetrical electrons filled into orbitals show Jahn Teller Effect such as Cr2+ , Mn3+ , Co2+ etc .
a) Draw a d orbital electronic configuration of a distorted Cu" octahedral complex: Compression along the...
Using the crystal field theory approach, draw the d-orbital splitting diagram for octahedral [Cu(OH2)6+, properly label each of the orbitals (i.e. dky etc.), and fill in the electrons. Show the changes in energy of all the d-orbitals under the influence of Jahn-Teller distortions resulting in both axial elongation and in axial compression (tetragonal distortions).
Using the crystal field theory approach, draw the d-orbital splitting diagram for octahedral [Cu(OH2)6+, properly label each of the orbitals (i.e. dky etc.), and fill in...
2.) Starting with the octahedral (ML6) crystal field splitting pattern below: A.) Draw the d-orbital splitting for a tetragonally compressed compound (ML6). This is where the ligands along the z-axis are pushed closer to the metal center, and the ligands along the x and y-axis are pulled further from the metal center (10 marks). B.) Continue this trend until the ligands along the x and y axes are completely removed, and show the d-orbital splitting for the resulting linear complex...
(i) Draw the electron distribution in the d orbitals of an octahedral Cu(II) complex and show the electronic transition responsible for the absorptions observed. (ii) Assign the transition you observe for each complex and give the value of (in cm-1 ) (ii) is based on the complexes from (i)
3) The d orbital electron configuration of octahedral complexes can either be described as high- spin with the maximum possible number of unpaired d-electrons, or low-spin containing one or more paired d-electrons. [Fe(H20)62 is a high-spin octahedral complex. What is its spin- state (S-?)? Draw a d-orbital splitting diagram for this complex and fill it with the appropriate number of electrons. Where does the final electron go in this diagram? If you were to oxidize this molecule do you think...
2.) Starting with the octahedral (ML6) crystal field splitting pattern below: A.) Draw the d-orbital splitting for a tetragonally compressed compound (ML6). This is where the ligands along the z-axis are pushed closer to the metal center, and the ligands along the x and y-axis are pulled further from the metal center (10 marks). B.) Continue this trend until the ligands along the x and y axes are completely removed, and show the d-orbital splitting for the resulting linear complex...
Draw the d-orbital energy diagram for a square planar complex [M(L)4]2+. Draw a schematic representation (i.e. simple 2D picture) of the metal-ligand antibonding orbital that corresponds to the highest energy orbital of the splitting diagram. How is this square planar splitting diagram related to the d-orbital splitting diagram for a Jahn-Teller distorted octahedral complex?
Electronic absorption spectrum of copper ammine complexes
(i) Draw the electron distribution in the d orbitals of an
octahedral Cu(II) complex and show the electronic transition
responsible for the absorptions observed.
(ii) Assign the transition you observe for each complex and give
the value of Δ (in cm-1).
Visible absorption spectra of Cu(ll) complexes 1.2 Cu (H20)2(NH3)4 Cu (H2O)6 Cu (H20)3(NH3)3 0.8 0.6 Cu (H20)s(NH3) Cu (H20)4(NH3)2 0.4 0.2 850 500 550 600 650 700 750 800 900 450 nm...
a. Predict the structure of [Cr(OH2)6]2+ - I wrote that the complex will undergo Jahn-Teller distortion, making the octahedral complex become tetragonal (don't know if that's correct) b. Account for the variation in the lattice enthalpy of Mn (2780 kJ/mol), Fe (2926 kJ/mol), Co (2976 kJ/mol), Ni (3060 kJ/mol), and Zn (2985 kJ/mol) flouride given that the metal center in all of the flourides is surrounded by an octahedral array of F-ions. c. Explain the effect on the d-orbital energies...
5) Draw d orbital splitting of an octahedral complex. Calculate CFSE for a high spin Fe(II) complex in an octahedral geometry. Calculate spin only magnetic moment for the complex too. 6