Fivefold Bonding in Cr(I) Dimer
This paper describes the synthesis and characterization of a Cr(I) dimer with a very short Cr-Cr distance. Computational studies support fivefold bonding between the chromium atoms. I have used this paper to introduce metal-metal multiple bonds and discuss the molecular orbital interactions of homonuclear diatomics including d-orbitals. More generally, it is a nice example to stimulate the discussion of what constitutes a bond and the various interpretations of bond order.
Main group element paper and presentation
Atomic orbitals brainstorm
This is a beginning-of-semester "warm up." The goals are to help students reconnect to their prior knowledge about atomic orbitals and to introduce and practice the fundamentals of good small group work.
Solid-state model building exercise
Students construct models of ionic solids in class and answer a series of questions about the structures.
Student autobiographies
The students write a 2-page chemistry autobiography at the beginning of the semester in order to reflect on their previous chemistry learning experiences, express their expectations for the class, and help me get to know them.
Housecroft and Sharpe: Inorganic Chemistry, 3ed
Housecroft and Sharpe (Inorganic Chemistry, 3ed): This is a comprehensive inorganic textbook designed primarily for students at the Junior/Senior level. P-Chem would not be needed as a prerequisite for this text, but would be helpful. It includes both theoretical and descriptive material along with special topics, enough for a two semester course though it is easily adaptable to a one-semester "advanced inorganic" course by choosing only some topics. It is written in a clear and generally readable style and the full-color graphic contribute to student understanding.
Introduction to Powder X-ray Diffraction
Tetrahedral Tellurate
This communication describes the first example of a discrete tetrahedral tellurate ion, analogous to sulfate and selenate. This assignment was used as an introduction to the inorganic literature early in the semester. Pre-discussion questions were adapted from the "How to Read an Inorganic Paper" learning object by Hilary Eppley. In class discussion focused on communications vs. full papers, the essentials of X-ray crystallographic information, multinuclear NMR, and the periodic trends discussed in this paper.
The Lanthanide Contraction
This recent article discusses a series of isostructural complexes across the lanthanides using a multidentate ligand. In these structures, the lanthanides are all eight-coordinate, bonded to all oxygen donors. Copious structural data is presented that provides excellent experimental verification of the lanthanide contraction.
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