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Both introductory texts and texts for upper-level inorganic chemistry courses are shifting the emphasis in their coverage of transition metal chemistry from classical Werner complexes to those that exhibit some form of catalytic activity. This is of particular importance to bioinorganic chemistry, a now mature area of the science, but one that is still underrepresented in the undergraduate curriculum.
Derrick L. Howard, Arthur D. Tinoco, Gary W. Brudvig, John S. Vrettos, and Bertha
Connie Allen address this issue in their paper on catalytic
oxygen production by a dimanganese complex that is proposed as a model for
the four-manganese center in Photosystem II. The featured
molecules for May are the model compound in the
proposed mechanism for oxygen production.
Fully manipulable (Chime) versions of this molecule appears below. These and other molecules are avialable Only@JCE Online. 
Figure 1. dimeric µ-oxo-bridged manganese complex [(terpy)(H2O)MnIII(O)2MnIV(OH2)(terpy)]3+ |
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