Werner Coordination Complexes

March 21, 2016

More than 100 years ago, Alfred Werner first proposed the structure of coordination complexes in the mode that we still use today! The following papers discuss some of Werner’s many accomplishments and contributions to the field of transition metal complexes.

  1. Werner’s intuition on coordination chemistry and current-day characterization on samples prepared by Werner and his lab are discussed in this report.
  2. In this paper, a brief history on coordination chemistry from the 19th Century and Werner’s proposed structures are presented.
  3. Crystallographic characterization of an original crystal prepared by Werner and his lab is shown here.

Transition Metal Complexes Colors

April 2, 2015

This site on chemguide gives examples and explains changes in solution color based on ligand identity around transition metal ions in complexes.

http://www.chemguide.co.uk/inorganic/complexions/colour.html

View the site in the link above or copy and paste the URL.

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Transition Metal Ion Colours

April 2, 2015

Chemistry blog Compound Interest overviews the color of first row transition metal ions in aqueous solutions. A brief explaination is provided for what gives these complexes the colors we perceive.

http://www.compoundchem.com/2014/03/05/colours-of-transition-metal-ions-in-aqueous-solution/

View the picture and more in the link above or copy and paste the URL.

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Build and Manipulate Digital 3D Models

January 1, 2015

There are a few free programs available that allow you to construct your own molecular models on your computer. This is very helpful for visualizing 3D structures, and can be helpful with visualizing symmetry operations.

Avogadro is available for Macs and PCs.

Chem3D is part of the ChemBioDraw Ultra package, for PCs only.

Build and Manipulate Digital 3D Models

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Review: Electron Counting

December 30, 2014

Review electron counting and do practice problems.

http://www.ilpi.com/organomet/electroncount.html

 

Review: Electron Counting

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Electron Counting

December 30, 2014

This website focusing on the “neutral ligand formalism” or MLX convention has some interesting case studies and introductory notes.

http://www.covalentbondclass.org

 

Electron Counting

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Transition Metal Orbital Overlap

December 30, 2014

Interactive web app to visualize overlap between transition metal d-orbitals and ligand orbitals in complexes.

http://www.flicksstuff.com/Jmol/jsmol/ligandfield.html

 

Transition Metal Orbital Overlap

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