Author Archives: mjknapp

About mjknapp

Department of Chemistry UMass-Amherst

TOTAL COURSE RESULTS

Okay, this is what you really want to know.  Here are the scores for the final exam, ARS, and the overall sum total for the entire course.  I will enter these scores in SPIRE on Monday after Christmas.

Scores and grades:  2011_Scoresheet

The total score is:  (Fin) + (MT 1,2,3) + (ARS) – (lowest of MT or ARS)

The grade distribution was pretty good – alot of A’s.

I calculated the ARS score (82 possible) by dropping the lowest 15% of responses (maximum score of 70), then converting that score to a scale of 100 (ie: scores of 70 or more earned a 100 on ARS).

I then replaced your lowest midterm score with your ARS score (if it was higher).

 

36. Wed. Dec 7

Coordination Chemistry – Reactions
Chapter 12: 452, 454-463

HW:1 2 3 4 5 9 14 15 19

SLIDES:  Dec_7_inked

Goals: Rationalize LigExch products using mechanisms (SN1 and SN2)
Predict relative rates of ligand exchange wrt CFSE, ion radius, charge, coordination number
Memorize definition of these terms: anation, aquation, A/D/I mechanisms

Don’t worry about kinetic expressions!

Wed. November 30

Discussion of photochemistry / photophysics as related to solar energy:

Accounts of Chemical Research 2003, 36, 876-887.  Read the stuff in the red boxes, and read the figure captions in order to understand the figures.

JimACR

Slides:

Goals: interpret electronic spectra of coordination compounds (dd/LMCT/MLCT); interpret reactions of Ru(bpy)32+* in context of ground states and excited states.

33. Monday Nov 28

Discussion of photochemistry / photophysics as related to solar energy:

Accounts of Chemical Research 2003, 36, 876-887.  Read the stuff in the red boxes, and read the figure captions in order to understand the figures.

JimACR

Slides: Nov_28_inked

Goals: interpret electronic spectra of coordination compounds (dd/LMCT/MLCT); interpret reactions of Ru(bpy)32+* in context of ground states and excited states.