Molecular Origami: Precision Scale Models from Paper, by Robert M. Hanson

Submitted by Randall Hicks / Wheaton College on Tue, 06/29/2010 - 11:54
Description

This book called to me given my fascination with both origami and molecular model kits. While not a textbook in the true sense, the content of the book is pertinent to topics of molecular structure and symmetry and is therefore potentially valuable in both general and inorganic chemistry courses. In addition to the plans for constructing all the models (~125), there is a small amount of background information. Granted, many of these models could more easily be made using traditional model kits, but I had fun building them from paper.

Exploring Molecular Orbitals With Spartan

Submitted by Maggie Geselbracht / Reed College on Thu, 01/21/2010 - 21:24
Description

Molecular models and selected molecular orbital surfaces and slices were calculated with Spartan for HF, LiH, CO2, XeF2, and BF3, and the results were used by students in an in-class activity (covering several class sessions) to answer a series of questions.

Interactive Lewis Structures

Submitted by Adam Bridgeman / The University of Sydney on Wed, 01/20/2010 - 21:51
Description

http://firstyear.chem.usyd.edu.au/iChem/lewis.shtml

A set of Flash-based, interactive tools for students to construct Lewis structures for electron deficient, octet rule obeying and hypervalent MLx molecules and ions (x = 2 - 6).

The user chooses the number of electrons and bond type (single, double or triple) and is steered towards the correct stucture.

For cases where resonance structures are possible, the user must construct each form to complete the puzzle.

In-Class Review of Symmetry Operations and Point Groups

Submitted by Maggie Geselbracht / Reed College on Wed, 08/19/2009 - 14:50
Description

This in-class activity was used on the first day of Advanced Inorganic Chemistry in lieu of lecture to review symmetry operations and point groups in small molecules.  The learning object was adapted to a small group discussion format from a fundamental quiz posted by Barbara Reisner (James Madison University) and a problem set question posted by Adam Johnson (Harvey Mudd College).

Molecular Orbital Diagrams

Submitted by Adam Bridgeman / The University of Sydney on Tue, 07/07/2009 - 03:51
Description

http://firstyear.chem.usyd.edu.au/calculators/mo_diagrams.shtml

Flash based tools to help with the construction of MO diagrams:

  • "energy levels" shows how the form of the bonding and antibonding orbitals, the bond order and atomic charges vary in a diatomic molecule with the electronegativity of the two atoms involved
  • "Molecular orbital diagram maker" shows how a complex MO diagram can be made by a drag and drop approach using symmetry adapted components

 

Symmetry Resources at Otterbein University

Submitted by Dean Johnston / Otterbein University on Sat, 03/28/2009 - 23:42
Description

The resources contained within this web site are designed to help students learn concepts of molecular symmetry and to help faculty teach concepts of molecular symmetry.

d-orbitals in a variety of ligand geometries

Submitted by Flick Coleman / Wellesley College on Fri, 03/13/2009 - 20:54
Description

I developed this Jmol page to help my students see the relationship(s) between the ligands and metal d-orbitals in a number of different geometries.  Since the images are all rotatable, students who have difficulty looking at flat images and drawing appropriate conclusions have that barrier reduced or eliminated.  I have now used the application twice - this past fall in the second semester of introductory chemistry and a few weeks ago when I began ligand field theory in my inorganic course.  In both classes I received favorable comments.  A number of students in the inorganic course, who h

How molecular orbitals change as atomic energy levels shift

Submitted by Flick Coleman / Wellesley College on Wed, 03/11/2009 - 18:11
Description

Over the years I have developed a number of interactive tools that I use in my classes. This is a tool that seems appropriate for VIPEr. Comments are always appreciated, and I am always interested in developing new tools if there is something you might find useful.

This tool allows you to look at how molecular orbitals change as the difference in electronegativities of the parent atomic orbitals increases.

 

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