Characterization of group VI carbonyls with bidentate phosphines

Submitted by Chip Nataro / Lafayette College on Thu, 01/15/2026 - 14:53
Description

This literature discussion comes from a paper in the Turkish Journal of Chemistry (199923, 9-14) https://journals.tubitak.gov.tr/chem/vol23/iss1/2/. In this paper, the authors report spectroscopic data for nine compounds, [M(CO)4(PP)] (M = Cr, Mo or W; PP = dppm, dppe, dppp). This is a very fundamental paper and as such, students are not expected to have had any significant coursework in inorganic chemistry.

Flavodiiron Oxygen Reductase

Submitted by Amanda Reig / Ursinus College on Thu, 11/20/2025 - 09:44
Description

This paper investigates factors that influence substrate specificity (O2 versus NO reductase activity) within flavodiiron enzymes. The authors mutate potentially relevant amino acids and investigate the biochemical and biophysical properties by UV-visible and EPR spectroscopies.

Synthesis and Group Theory Analysis of MoO2(acac)2

Submitted by Amanda Reig / Ursinus College on Fri, 11/14/2025 - 12:27
Description

This laboratory experiment is a quick and straightforward synthesis of a MoO2(acac)2 complex. The ligand set allows for two possible geometric arrangements: cis and trans. Using IR spectroscopy along with group theory analysis of the Mo-O stretching modes, students can determine which isomer they formed in their synthesis. NMR spectroscopy is also employed, and confirms the geometric arrangement due to the inequivalence of the acac methyl groups.

1FLO: Addition of H2 to four-coordinate iridium

Submitted by Chip Nataro / Lafayette College on Wed, 10/22/2025 - 13:41
Description

This paper (J. Organomet. Chem. 2022, 965-966, 122317) describes the synthesis and reactivity of four-coordinate iridium compound with a tridentate ligand. This ligand is referred to in the paper as a pincer ligand which are a general class of tridentate ligands that coordinate in a mer- arrangement.

2025 Nobel Prize in Chemistry - MOFs

Submitted by Chip Nataro / Lafayette College on Wed, 10/08/2025 - 08:43

In celebration of the 2025 Nobel prize in Chemistry awarded to Susumu Kitagawa, Richard Robson and Omar Yagi, this collection features various LOs about MOFs.

Metallocene cations and anions

Submitted by Chip Nataro / Lafayette College on Tue, 09/23/2025 - 11:39
Description

This is a really interesting paper in J. Am. Chem. Soc. (2025, 147, 34641-34646) involving a complex salt in which both the cation and anion are metallocenes. While a majority of the paper is focused on the characterization of two new compounds, it presents some excellent opportunities to practice counting electrons, one of which was a challenge to this author.

Rhenium isocyanide complexes from the Figueroa group
Description

This literature discussion is in honor of Dr. Josh Figueroa, recipient of the 2026 F. Albert Cotton Award in Synthetic Inorganic Chemistry. Josh has done some tremendous work with isocyanide ligands and this paper is but a brief glimpse into this field. The complexes of interest contain carbonyl ligands and isocyanide ligands, so there are plenty of opportunities for students to use group theory to predict the number of IR-active vibrations for these ligands.

Chip Nataro / Lafayette College Tue, 08/26/2025 - 13:34

SLiThEr #65: Publishing at a PUI

Submitted by Chip Nataro / Lafayette College on Mon, 07/28/2025 - 07:52
Description

Kyle Grice (DePaul) and Jacob Lutter (University of Southern Indiana) will present on how they have been successful in designing and publishing research at their respective PUI.

SLiThEr #64: Developing ACS Guidelines for Undergraduate Chemistry Programs

Submitted by Chip Nataro / Lafayette College on Mon, 07/28/2025 - 07:41
Description

A discussion about the 2023 ACS Guidelines for Undergraduate Chemistry Programs with Michelle Brooks (Assistant Director of the Office of Higher Education at ACS), Cora MacBeth (Emory University) and Barb Reisner (James Madison University). Additional discussion is available to registered faculty users.