National ACS Award Winners 2022 LO Collection

This collection of learning objects was created to celebrate the National ACS Award Winners 2022 who are members of the Division of Inorganic Chemistry. The list of award winners is shown below. 

Shirley Lin / United States Naval Academy Sat, 03/12/2022 - 07:01
Catalytic Transformation of Lignin (Abu Omar)

Lignin material from plants may be transformed into useful organic materials.  This LO is part of a special VIPEr collection honoring the 2022 ACS National Award recipients in the field of inorganic chemistry. Mahdi Abu Omar was the recipient of the ACS Award in Green Chemistry for his contributions to fundamental science and technology development for catalytic lignin conversion to renewable chemicals, fuels, and materials following green chemistry and engineering principles. 

Hilary Eppley / DePauw University Tue, 03/15/2022 - 10:20

The ditungsten tetracarboxylate story (Sattelberger)

Submitted by Joanne Stewart / Hope College on Tue, 03/15/2022 - 09:37

This literature discussion learning object examines the first reported synthesis in 1983 of the long anticipated quadruply bonded ditungsten tetracarboxylate dimers by Dr. Al Sattelberger and co-workers. This LO is part of a special VIPEr collection honoring the 2022 ACS National Award recipients in the field of inorganic chemistry. Alfred P. Sattelberger was the recipient of the 2022 ACS Award for Distinguished Service in the Advancement of Inorganic Chemistry.

Enhancement of the Thermal Stability and Thermoelectric Properties of Yb14MnSb11 by Ce Substitution (Kauzlarich)

Submitted by Susan Kauzlarich / University of California, Davis on Mon, 03/14/2022 - 20:57

This article provides an introduction to thermoelectric materials and applications for space, highlighting a complex Zintl phase, Yb14-xCexMnySb11. Yb14MnSb11 is a semiconductor that can be substituted with Ce to change the number of carriers in the material and thereby enhance the transport properties.

Spectroscopic, Structural, and Computational Analysis of [Re(CO)3(dippM)Br]n+ (Nataro)

Submitted by Shirley Lin / United States Naval Academy on Sat, 03/12/2022 - 06:17

This literature discussion will guide students through an article that applies spectroscopic, structural, and computational analyses to a family of compounds of the type [Re(CO)3(dippM)Br]n+  (dippM = 1,1’-bis(diisopropyl)phosphino metallocene, M = Fe, n= 0 or 1; M = Co, n = 1).

Toward the Design of Phosphorescent Emitters of Cyclometalated Earth-Abundant Nickel(II) and Their Supramolecular Study (Yam)

This LO was created to celebrate Dr. Vivian W.-W. Yam's 2022 ACS Award, the Josef Michl Award in Photochemistry. These questions are written to help guide class discussion about this paper and the complexes in it. This LO would be good for an organometallics class or similar upper-division inorganic chemistry class. 

Kyle Grice / DePaul University Tue, 03/08/2022 - 15:15

Evidence of a homogeneous trinuclear Rh(I)-Cu(II)-Rh(I) catalyst for benzene C-H oxidative addition and styrene production (Gunnoe)

Submitted by John Lee / University of Tennessee Chattanooga on Wed, 03/02/2022 - 10:26

The literature discussion is based on a manuscript by Gunnoe and coworkers (ACS Catal. 2021, 11, 5688-5702. DOI: 10.1021/acscatal.1c01203). The paper presents mechanistic studies of catalytic oxidative conversion of arenes and olefins to alkenyl arenes with a focus on styrene production.

Reversible, Metal-Free Hydrogen Activation (Stephan)

Submitted by Todsapon T. / University of Evansville on Tue, 03/01/2022 - 16:35

This LO discuss various aspects of a reversible hydrogen activation by a metal-free phosphonium-borate compound.  Attentions are paid to the specific and usual reaction between highly steric phosphine and borane reactants to form a zwitterionic phosphonium borate product.  NMR spectroscopy, kinetics and thermodynamics of the hydrogen activation with the phosphonium borate product are also discussed.  The original work was published in Science by Douglas W. Stephan and co-workers.

Free Energy of Activation & Reaction Completion Times

This spreadsheet uses the Eyring equation to draw a connection between activation barriers and the timescale of a reaction. Students input a free energy of activation and can quickly see how long a reaction will take at varying temperatures. This has been particularly useful in computational sections of literature articles that investigate possible mechanistic pathways.

Joanna Webb / West Virginia Wesleyan College Thu, 02/17/2022 - 13:39

VIPEr nanoCHAt : NeWBiEs Spring 2022 Learning Objects

Submitted by Shirley Lin / United States Naval Academy on Wed, 02/02/2022 - 18:07

This collection accompanies the IONiC VIPEr nanoCHAt video series NeWBiEs, recorded in Spring 2022. This series is comprised of weekly conversations with two IONiC members, Wes Farrell and Shirley Lin from the US Naval Academy, as they taught a foundation-level inorganic chemistry course for the first time. The LOs discussed in the videos are included in this collection.