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Porphyrin (Read 2305 times)
Gerrit-Jan Linker
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23.03.11 at 19:13:32
Porphyrins are a group of organic compounds of which many occur in nature.  
One of the best-known porphyrins is heme, the pigment in red blood cells.
Porphyrins are heterocyclic macrocycles composed of four modified pyrrole subunits interconnected at their α carbon atoms via methine bridges (=CH-). Porphyrins are aromatic. That is, they obey Hückel's rule for aromaticity.
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« Last Edit: 23.03.11 at 19:17:44 by Gerrit-Jan Linker »  


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