Submitted by Adam Johnson / Harvey Mudd College on Mon, 01/18/2021 - 16:56
My Notes

For our virtual offering of inorganic chemistry laboratory at Harvey Mudd College in Spring 2021, I made some videos and collected some high quality data (IR, 1H NMR, MS, UV-Vis, mp, and X-ray diffraction) that I will make available for my students. The videos show the synthesis of Co and Mn acacs, the difference between as-prepared and recrystallized compounds, making solutions for UV-Vis and Evans method NMR, and making Evans method capillary tubes. The procedures for the synthesis of these compounds is found in Woolins (either the first or second editions). 

Data as pdfs is provided for IR, UV-Vis, NMR and MS, while several files are provided for the solid state structures (cif files, tables, crystal images, and the checkcif report from IUCR). 

There are several faculty-only files, including a lab manual, some preparative details, and a partial answer key.

Attachment Size
Co Evans.pdf 51.22 KB
Co IRs.pdf 125.53 KB
Co MS.pdf 88.18 KB
Co UVVis.pdf 1.18 MB
Coacac3 checkcif.pdf 141.07 KB
Coacac3_tables.html 32.19 KB
Coacac3.cif 228.71 KB
Coacac323.jpg 85.67 KB
Cr Evans.pdf 52.08 KB
Cr IRs.pdf 124.19 KB
Cr MS.pdf 86.38 KB
Cr UVVIs.pdf 1.02 MB
Cracac3_cifreport.html 13.74 KB
Cracac3_tables.html 40.77 KB
Cracac3.cif 1.22 MB
Cracac334.jpg 82.42 KB
Cu Evans.pdf 51.4 KB
Cu IRs.pdf 124.98 KB
Cu MS.pdf 84.83 KB
Cu UVVis.pdf 185.6 KB
Cuacac2 checkcif.pdf 108.3 KB
Cuacac2_tables.html 20.43 KB
Cuacac2.cif 145.04 KB
Cuacac27.jpg 96.99 KB
Fe Evans.pdf 52.58 KB
Fe IRs.pdf 122.9 KB
Fe MS.pdf 82.59 KB
Fe UVVis.pdf 819.66 KB
Feacac3 checkcif.pdf 137.53 KB
Feacac3_tables.html 35.98 KB
Feacac3.cif 1.52 MB
Feacac315.jpg 85.41 KB
Mn Evans.pdf 51.71 KB
Mn IRs.pdf 123.39 KB
Mn MS.pdf 87.08 KB
Mn UVVis.pdf 571.44 KB
Mnacac3 checkcif.pdf 194.92 KB
Mnacac3_tables.html 94.23 KB
Mnacac3.cif 1.07 MB
Mnacac33.jpg 88.01 KB
instructions for weeks 1 and 2 2.1 MB
Learning Goals

Students will interpret all of the provided data to verify the structure. 

Students will learn that not all data provides the same amount of information.

Equipment needs

The cif files can be opened with a variety of programs (CrystalMaker, Mercury, etc.)

Implementation Notes

I will be implementing this in January and February of 2021. I will have the students watch the synthesis videos and come up with balanced chemical reactions for one of Co/Mn and one of Cu/Cr/Fe. The following week, they will work in groups of 2-3 to interpret all the spectroscopic and other data before I give them the X-ray data. I will teach them how to visualize and interpret crystal structure reports.

Time Required
two 3-4 hour lab periods plus time for writeup outside of class
Evaluation Methods

Students will be evaluated on their ability to provide balanced chemical equations from the videos, determine yield, and interpret the data to evaluate identity and purity of the complexes. 

Evaluation Results

will report back soon!

Creative Commons License
Attribution, Non-Commercial, Share Alike CC BY-NC-SA