Scandium Carbonyls - mysterious myth or legendary legend?

Submitted by James F. Dunne / Central College on Thu, 03/06/2025 - 14:36
Description

This literature discussion is based on a short JACS communication reporting the first isolable Sc(II) carbonyls (not a typo) and isocyanides.  The paper discusses some standard synthesis and characterization while exploring a more fundamental question regarding why Sc, a d-block metal, is considered a rare-earth and when it stops reacting analogously to the rare-earth metals.  The LO focuses on ye olde carbonyl stretching frequencies and back-bonding and makes a nice follow up to an introduction to that concept.  It tries to make students explicitly connect electron configuration to changes

National ACS Award Winners 2025 LO Collection

Submitted by Shirley Lin / United States Naval Academy on Sat, 03/01/2025 - 14:12

This collection of learning objects was created to celebrate the National ACS Award Winners 2025 who conduct research related to inorganic chemistry.

The list of award winners included in this collection are shown below. (* denotes learning object pending) IONiC members are welcome to develop more LOs for the collection.

 

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AsF5 - a superacid for super review!

Submitted by James F. Dunne / Central College on Fri, 02/21/2025 - 13:02
Description

This LO was developed as a review activity for the end of the semester.  Students are required to touch on a wide range of topics including acid-base theories, crystal systems, point groups, the spectrochemical series, and 19F NMR spectroscopy.  A close reading of the paper is required helping to build student comprehension of the literature.

Eight Coordinate Zirconium?

Submitted by James F. Dunne / Central College on Fri, 02/21/2025 - 11:43
Description

This discussion is intended as a brief application of symmetry and ligand coordination to a novel Zr compound. Students apply VSEPR and molecular symmetry to an uncommon organometallic compound, and apply the coordination mode to basic reactivity. It is intended for an in-class activity but could easily be assigned as a short homework assignment.

Coordination Bonding with Main Group Metals(?)
Description

This Literature Discussion considers the synthesis of the first carbene-bismuthinidene complex by Gilliard and coworkers in 2019. This molecule serves as an illustration of different bonding models, as it can be described by multiple resonance structures invoking fully covalent, zwitterionic, and coordinate/dative bonding forms. Students analyze these resonance structures and their geometrical implications, then compare to the experimental structural evidence to come to a conclusion about which bonding model(s) best describe this molecule!

A. M. Christianson / Bellarmine University Wed, 12/11/2024 - 10:19

Literature Discussion Group Project

Submitted by Wes Farrell / United States Naval Academy on Mon, 08/05/2024 - 14:23
Description

This is a literature-based end of semester project.  After a semester of introducing literature in the form of typical literature discussions, this assignment is given to small groups.  It may be easily amended or added to.  Each group is provided with a paper and accompanying questions that are similar to the literature discussions they have done over the semester.  They then must use these guiding questions to assemble a presentation to the class.  The topics chosen and the guiding questions are designed to provide students with a taste of the many areas of inorganic chemistry that are no

Catalytic dechlorination of PVC

Submitted by Chip Nataro / Lafayette College on Wed, 07/24/2024 - 08:18
Description

This LO was inspired by a talk that Megan Fieser gave at the 2024 Organometallic Chemistry Gordon Research Conference. It was an excellent talk with some really interesting chemistry. Wanting something with practical application for my class focused on organometallic chemistry, I looked at one of her 'older' papers and found this really interesting rhodium catalyst. In the main paper for this LO (Mater. Horiz. 202310, 2047), the catalytic dechlorination of poly(vinyl chloride) (PVC) using a rhodium pincer complex is described.

The elusive tetrabenzylthorium compound (Bart)
Description

This literature discussion learning object describes the isolation and structure of tetrabenzylthorium, a molecule that was synthesized many years ago but was never thoroughly characterized.

Joanne Stewart / Hope College Thu, 03/14/2024 - 20:09