Carbohydrates metal complexes

Carbohydrate-Metal Complexes Structural Chemistry of Stable Solution Species... 

In the structures, introduced so far, an O4 rhomb or O5 patterns turned out to be ideal building blocks for carbohydrate-metal complexes. The most important monosaccharide, D-glucose, in any of its hemiacetal forms does not exceed the simple 02 diol pattern ( a consequence is the epimerization reaction of glucose to 8-mannofuranose in the presence of trivalent metal ions). 

The general phenomenon of carbohydrate-metal complexing is well known with a review having been written some years ago and extensive research having been conducted since that time. 

The energetic process of photosynthesis is represented by Fig. 13-1 where the electron from water is driven to higher energy in two steps (at photosystems II and I, abbreviated to PSII and I) at the reaction center of chlorophyll, and finally reduces CO2 to produce carbohydrate. Metal complexes and metal clusters play a decisive role in photoinduced energy transfer, photoinduced electron transfer and catalysis. 

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