nanoCHAts: Informal conversations about teaching

A collection of all of the IONiC VIPEr NanoCHAts. These are short discussion on a teaching topic by 4-5 faculty members from different institutions. Each of these events is recorded and posted to the IONiC VIPEr YouTube Channel.

Hilary Eppley / DePauw University Wed, 04/07/2021 - 14:33
National ACS Award Winners 2021 LO Collection

This collection of learning objects was created to celebrate the National ACS Award Winners 2021 who are members of the Division of Inorganic Chemistry. The list of award winners is shown below. 

Shirley Lin / United States Naval Academy Fri, 03/26/2021 - 12:14
Proton-Assisted Reduction of CO2 by Cobalt Aminopyridine Macrocycles (Marinescu)
Description

Various topics ranging from coordination chemistry, electrochemistry, solid state chemistry and point group and symmetry are discussed from the JACS article published by Smaranda C. Marinescu and her co-workers.  The article describes the conversion of CO2 to CO by using cobalt aminopyridine macrocycle catalysts.

Todsapon T. / University of Evansville Sun, 03/14/2021 - 15:32

Terminal Uranium (VI) Nitrides: Photoredox Synthesis and Reactivity (Mazzanti)

Submitted by Hilary Eppley / DePauw University on Tue, 03/02/2021 - 12:31
Description

This is one of a collection of learning objects developed to honor the 2021 ACS Award Winners in inorganic chemistry.  Marinella Mazzanti from the Swiss Federal Institute of Technology was awarded the F. Albert Cotton Award in Synthetic Inorganic Chemistry for her outstanding accomplishments in uranium and lanthanide chemistry, including the stabilization of unusual oxidation states and multimetallic cluster synthesis and small-molecule activation. In this paper photoredox chemistry is used to synthesize a uranium (VI) nitride.

reaction of PPh3 with elements--the COVID edition
Description

This is a research-like laboratory experience based on the one posted by Brad Wile (linked below). My students are mostly juniors and have had 2 semesters of organic. This spring they are taking the inorganic laboratory virtually, so I wanted to give them a more exploratory lab experience. Their job will be to watch the YouTube videos to see the synthesis and isolated products, and then propose characterization methods they want to employ to identify both the identity and purity of the compounds. 

Adam Johnson / Harvey Mudd College Sun, 02/28/2021 - 15:37
Development of Expanded Porphyrins (Sessler)
Description

The LO focuses upon classic articles describing the synthesis and characterization of the first "texaphyrin" compounds.

This LO is part of a special VIPEr collection honoring the 2021 ACS National Award recipients in the field of inorganic chemistry. Jonathan L. Sessler was the recipient of the Ronald Breslow Award for Achievement in Biomimetic Chemistry for the discovery of expanded porphyrins, molecular recognition via base-pairing, pyrrole-based anion binding, and demonstrating the power of this biomimetic chemistry in drug discovery.

Shirley Lin / United States Naval Academy Wed, 02/24/2021 - 09:24
The Organometallic Chemistry Behind the Polymer of Squares (Chirik)
Description

The discussion covers a 2021 publication by the Chirik group (Nature Chemistry, 2021, DOI: 10.1038/s41557-020-00614-w) which details the discovery of a new way to polymerize butadiene through iron-catalyzed [2+2] cycloadd

Megan Mohadjer Beromi / Princeton University Sat, 02/20/2021 - 12:34
Resolution of Werner complexes -- the COVID edition
Description

This is a classic experiment that has been revised and updated numerous times over the years. The experiment can be found in Girolami, Rauchfuss and Angelici, 3rd edition, but that edition removed some purification steps that were present in the earlier edition which has plagued generations of my students with poor resolution of the enantiomers. Marion Cass published a J. Chem. Educ. article in 2015 that included a pH determination and added back in the recrystallization step. This allowed my students to achieve higher yields and greater resolution in Spring 2020.

Adam Johnson / Harvey Mudd College Fri, 02/05/2021 - 12:44

metal acac complexes the COVID 19 version

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

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). 

Green Chemistry and Redox Flow Batteries

Submitted by Abby O'Connor / The College of New Jersey on Thu, 01/07/2021 - 10:56
Description

This paper in Chemical Science written by Ellen Matson and co-workers describes a structure function approach to improving the properties of non-aqueous redox flow batteries based upon polyoxovanadate-alkoxides (POV-alkoxides). Given the importance of battery technology on society and sustainable chemistry, this article allows students to engage with a paper that could have broad implications in society.