exam 2b key - eg Chemistry 312, Summer 2011 Name: Key Exam...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
e g Chemistry 312, Summer 2011 Name: Key Exam 2 (MO, LF and CF theory, metal complexes) Answer all questions; 50 points are possible. The exam is closed-book and closed-note; a periodic table and other information is provided within this exam. The exam length is one hour, and show your work for full credit. Some facts that may prove useful: I < Br < Cl < F < OH < H 2 O < NH 3 < en < CN < CO Mn 2+ < Ni 2+ < Co 2+ < Fe 2+ < V 2+ < Cr 3+ < Fe 3+ < Co 3+ < Mo 3+ < Rh 3+ < Ru 3+ < Pd 4+ < Ir 4+ 1. [AgF 4 ] is a square planar complex (D 4h point group). a. (2 points) What is the charge on the silver ion? Ag 3+ b. (4 points) The D 4h character table is given below. D 4h E 2 C 4 C 2 2 C 2 2 C 2 i 2 S 4 σ h 2 σ v 2 σ d A 1g 1 1 1 1 1 1 1 1 1 1 A 2g 1 1 1 –1 –1 1 1 1 –1 –1 B 1g 1 –1 1 1 –1 1 –1 1 1 –1 B 2g 1 –1 1 –1 1 1 –1 1 –1 1 E g 2 0 –2 0 0 2 0 –2 0 0 A 1u 1 1 1 1 1 –1 –1 –1 –1 –1 A 2u 1 1 1 –1 –1 –1 –1 –1 1 1 B 1u 1 –1 1 1 –1 –1 1 –1 –1 1 B 2u 1 –1 1 –1 1 –1 1 –1 1 –1 E u 2 0 –2 0 0 –2 0 2 0 0 For which irreducible representation will the d xy orbital be the basis function? For full credit, show a sketch or other visual aid you used to determine the answer.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
e g D 4h E 2 C 4 C 2 2 C 2 2 C 2 i 2 S 4 σ h 2 σ v 2 σ d Γ reducible 1 –1 1 –1 1 1 –1 1 –1 1 Which matches B 2g. c. (4 points) In a square planar (D 4h ) ligand field, the following splitting of the octahedral HOMO/LUMO orbitals is observed: Write the particular d orbital that is associated with each of these D 4h symmetry orbitals. The d
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 7

exam 2b key - eg Chemistry 312, Summer 2011 Name: Key Exam...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online