Would a 5-coordinate trigonal bipyramidal Copper(II) complex exhibit Jahn-Teller distortion?
Would a 5-coordinate trigonal bipyramidal Copper(II) complex exhibit Jahn-Teller distortion?
Homework Answers
Noo.. because The most common geometry that the pJahn-Teller effect is observed is in octahedral complexes due to the splitting of d orbitals into two degenerate sets. Due to stabilization, the degeneracies are removed, making a lower symmetry and lower energy molecule. Six-coordinated copper(ii) complexes are found in a large number of crystal structures. Five coordinated complex dont show john tellar distortion
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Would a 5-coordinate trigonal bipyramidal Copper(II) complex
exhibit Jahn-Teller distortion?
(ii) Explain the Jahn-Teller distortion in [Cu(H2O)2 (ii) If a solution with a dissolved octahedral complex...
(ii) Explain the Jahn-Teller distortion in [Cu(H2O)2 (ii) If a solution with a dissolved octahedral complex appears yellow to the eye, what wavelength of light does it absorb? Is this complex expected to be low spin or high spin?
5. The complex [Cu(CN).]* undergoes tetragonal elongation due to Jahn-Teller distortion Draw the Crystal field splitting...
5. The complex [Cu(CN).]* undergoes tetragonal elongation due to Jahn-Teller distortion Draw the Crystal field splitting diagram for the complex and fill orbitals with electrons.
4. Pentaamminecuprate(II) is an example of a metal complex which adopts a trigonal bipyramidal geometry. ...
4. Pentaamminecuprate(II) is an example of a metal complex which adopts a trigonal bipyramidal geometry. (30 pts) a. Draw the structure for pentaamminecuprate(II) and identify the point group? b. Using a group theory approach, draw a molecular orbital diagram for pentaamminecuprate(II) and fill it with the appropriate number of electrons c. Indicate on your filled MO diagram transitions that would correspond to the following types of absorption bands. If no...
a. Predict the structure of [Cr(OH2)6]2+ - I wrote that the complex will undergo Jahn-Teller distortion,...
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...
Give the point group, LFSE, spin-only magnetic moment, Jahn-Teller activity (i.e. will the complex distort and...
Give the point group, LFSE, spin-only magnetic moment,
Jahn-Teller activity (i.e. will the complex distort and how), and
predicted stability for:
a. diaquasilver(I) (CN = 2, use Oh rules)
b. fac-[CoF3I3]3-
c. [Ru(ox)3]3-
d. Os(NH3)5 (CN = 5, use Oh
rules)
do all D Question 7 1 pts Why does the absorption spectrum of aqueous [TI(OH2)]* exhibit...
do all
D Question 7 1 pts Why does the absorption spectrum of aqueous [TI(OH2)]* exhibit a broad band with a shoulder? O An Intervalence Charge Transfer absorption overlaps with the d-d absorption. O [TI(OH2)]3+ contains ad Ti-ion and upon light absorption, there is degeneracy in the excited state leading to a Jahn-Teller distortion. O [TI(OH)]3+ contains ad Ti-ion and therefore there are two absorptions. O [TI(OH2)]** is partly reduced to [TI(OH)]2+ in aqueous solution and two absorptions which are...
Consider the trigonal bipyramidal tungsten complex [W(CO)>(PMe3)2] 0) Draw the structure of the cis- and trans-isomers....
Consider the trigonal bipyramidal tungsten complex [W(CO)>(PMe3)2] 0) Draw the structure of the cis- and trans-isomers. (1) Discuss how you would use NMR to distinguish between the isomers (III) Discuss how you would use IR spectroscopy to distinguish between the isomers (Illustrate your answer with suitable diagrams)
3. Consider the trigonal bipyramidal complex Fe(CO)4(PPh3) (Note: PPh3 is triphenylphosphine, P(C6H5)3. For symmetry purposes you...
3. Consider the trigonal bipyramidal complex Fe(CO)4(PPh3) (Note: PPh3 is triphenylphosphine, P(C6H5)3. For symmetry purposes you can ignore the phenyl groups) a) Draw the two possible isomers for this complex and determine the point group for each. b) Consider IR data for one of the possible structures: Vco = 2052, 1978, and 1945 cm-1. Can this data be used to determine which of the two structures you drew in "a" is the correct structure? Determine the number of IR-active stretching...
5. Consider an hypothetical six-coordinate complex SH6 with the sulfur atom located at the center of...
5. Consider an hypothetical six-coordinate complex SH6 with the sulfur atom located at the center of a trigonal prism as shown below. (a) What is the point group symmetry of this complex? (b) What are the symmetries of the ligand group orbitals of a trigonal prismatic SHE? (c) Construct a molecular orbital energy diagram for trigonal prismatic SH6. Please include the valence electrons in your diagram. (d) Will the molecule be expected to be stable?
Indicate whether the following would increase or decrease the solubility of copper(II) hydroxide. It may help...
Indicate whether the following would increase or decrease the solubility of copper(II) hydroxide. It may help to know that copper(II) ion forms a complex ion with ammonia: Cu2+ (aq) + 4 NH3 (aq) ⇌ Cu(NH3)42+ (aq). adding 50.0 mL of a solution of 0.25 M sulfuric acid adding 50.0 mL of a solution of 6.0 M ammonia
(ii) Explain the Jahn-Teller distortion in [Cu(H2O)2 (ii) If a solution with a dissolved octahedral complex appears yellow to the eye, what wavelength of light does it absorb? Is this complex expected to be low spin or high spin?
5. The complex [Cu(CN).]* undergoes tetragonal elongation due to Jahn-Teller distortion Draw the Crystal field splitting diagram for the complex and fill orbitals with electrons.
Give the point group, LFSE, spin-only magnetic moment,
Jahn-Teller activity (i.e. will the complex distort and how), and
predicted stability for:
a. diaquasilver(I) (CN = 2, use Oh rules)
b. fac-[CoF3I3]3-
c. [Ru(ox)3]3-
d. Os(NH3)5 (CN = 5, use Oh
rules)
do all
D Question 7 1 pts Why does the absorption spectrum of aqueous [TI(OH2)]* exhibit a broad band with a shoulder? O An Intervalence Charge Transfer absorption overlaps with the d-d absorption. O [TI(OH2)]3+ contains ad Ti-ion and upon light absorption, there is degeneracy in the excited state leading to a Jahn-Teller distortion. O [TI(OH)]3+ contains ad Ti-ion and therefore there are two absorptions. O [TI(OH2)]** is partly reduced to [TI(OH)]2+ in aqueous solution and two absorptions which are...
Consider the trigonal bipyramidal tungsten complex [W(CO)>(PMe3)2] 0) Draw the structure of the cis- and trans-isomers. (1) Discuss how you would use NMR to distinguish between the isomers (III) Discuss how you would use IR spectroscopy to distinguish between the isomers (Illustrate your answer with suitable diagrams)
3. Consider the trigonal bipyramidal complex Fe(CO)4(PPh3) (Note: PPh3 is triphenylphosphine, P(C6H5)3. For symmetry purposes you can ignore the phenyl groups) a) Draw the two possible isomers for this complex and determine the point group for each. b) Consider IR data for one of the possible structures: Vco = 2052, 1978, and 1945 cm-1. Can this data be used to determine which of the two structures you drew in "a" is the correct structure? Determine the number of IR-active stretching...
5. Consider an hypothetical six-coordinate complex SH6 with the sulfur atom located at the center of a trigonal prism as shown below. (a) What is the point group symmetry of this complex? (b) What are the symmetries of the ligand group orbitals of a trigonal prismatic SHE? (c) Construct a molecular orbital energy diagram for trigonal prismatic SH6. Please include the valence electrons in your diagram. (d) Will the molecule be expected to be stable?
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