This Learning Object is dedicated to Prof. Claudia Turro as part of the VIPEr LGBTQIAN+ LO collection created in celebration of Pride Month (Jun) 2022. Prof. Turro was featured in the April 2022 special virtual issue Out in Inorganic Chemistry: A Celebration of LGBTQIAPN+ Inorganic Chemists (https://pubs.acs.org/doi/10.1021/acs.inorgchem.2c00729). Claudia holds a special place in my heart. I came out later in life, and she was incredibly supportive as I wrestled with my identity as a gay man.

This Guided Literature Discussion was assigned as a course project and is the result of work originated by students Elina Andreassen and Abigail Palmer.

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.

The O'Hare group has studied complexes of the permethylpentalene ligand, and recently reported the reaction of a zirconium complex of this ligand with CO₂ to form the carbamate. A series of three different complexes were prepared, each with slightly different products upon reaction with CO₂, illustrating subtle differences in reactivity based on either sterics or electronics. To further tangle the web, entropic and enthalpic considerations can also be considered.