This is a literature discussion regarding electron counting.  It involves several opportunities for students to use CBC to determine electron counts themselves.  Then, it demonstrates the first case of a 21-electron complex, which leads to great discussion regarding the 18-electron rule.  Throughout the discussion, students are introduced to many structural and spectrochemical analyses, some of which may be new to them.

This article focuses on a theoretical analysis of K-edge X-ray Absorption Near Edge Structure (XANES) of Fe(CO)₅ in the D_3h and C_4v geometries. For the context of a one semester inorganic chemistry / physical inorganic chemistry course, the authors use computational methods and experimental X-ray techniques to generate the XANES spectra of two different geometries of Fe(CO)₅. Densities of states are used to show overlap between specific orbitals (Fe p with C p), indicating pi-backbonding.

In fall 2023, Jarad Mason from Harvard University was awarded the ACS Award in Pure Chemistry for his contributions to the fields of phase-change materials, microporous materials, and materials chemistry.  In this literature discussion, students will examine his recent paper “Microporous water with high gas solubilities," Nature 2022, 608, 712-718 which is related to that work.

This LO was written by the IONiC Leadership Council to celebrate Steve Koch as the recipient of the 2024 ACS Award for Distinguished Service in Advancement of Inorganic Chemistry. Steve has been a major supporter of the IONiC community since its inception. This LO is based on the article New Members of the Class of [Fe(CN)_x(CO)_y] Compounds. published in Inorganic Chemistry (DOI: 10.1021/ic015604y).

This literature discussion was created on invitation as part of a broad collection of learning objects celebrating Spring 2024 ACS award winners conducting research in Inorganic Chemistry. This learning object is in celebration of Prof. Christopher J.