This community challenge was to come up with problems on solid state structures. Not exactly my area of expertise. In fact, I ofter turn to VIPEr for help when I teach this these topics. I think we received some really great contributions for this community challenge. I am honored to have co-authored a few of them with Maggie Geselbracht. I look forward to using the rest of these in my class in the future.
It is the classic game of telephone (or whatever local varient name you might use). Put a bunch of people in a line. Start by whispering something to the first person and then have them whisper it to the next. This process continues until the last person states out loud what they heard. Usually the starting and ending statements are quite different. When students are reading a paper, it is fairly likely that they feel anything the paper they are reading says about a reference is correct.
This in-class group activity provides several examples of varying difficulty for students to assign MLXZ classifications and electron counts to organometallic complexes. Though some of the problems are straightforward, some are really ambiguous, and the intent is for student groups to grapple with the issues raised by each one and present their findings to the class to spark further discussion.
This website was put together by David W. Mogk, Montana State University–professor of geology and contra/square dance caller. Using square dancing, he shows symmetry elements present in space groups. There are videos on the website, but everything seems simple enough to do in class.
The slides provide review questions for a senior-level treatment of the spectroscopy and reactivity of metal carbonyl complexes. These are intended to be dispersed through one to three class periods.
The first slide is a review of electron counting and the 18-electron rule.
The second slide quizzes the students on the relationship between the electron-density of the metal center and the strength of the C-O bonds in the carbonyl ligands. It is intended to be given after a discussion of how IR can be used to assess the strength of M-C and C-O bonds in the compounds.
Students are asked to find a coordination complex in the recent literature and analyze its structure. This homework or in-class activity is a great way for the instructor to crowd source the discovery of interesting new complexes to use as material in future exams.
I like having students look at data and then explain data based on what they know about periodic trends. This activity uses the data we all use for radii and ionization energies and asks students to look just a little bit deeper.
I have gone back and forth between using this as an in class activity (my current practice) and using some of these questions on exams.
In this exercise, students are introduced to Mercury, a program for visualizing and analyzing crystal structure data. Students are guided through opening the program for the first time and viewing a structure from the Teaching Subset, a selection of structures from the Cambridge Crystallographic Database (CSD). Activites include changing the representation of the complex, moving the structure around the window, accessing information about the structure, and measuring bond lengths and angles within the structure.
This looks like a great resource to visualize the data contained in the international tables in 3D.
My colleague, John GIlje, recommended this resource to me. It's not something I'll use on a day to day basis because it requires a PC.