Oxyhemoglobin crystal structure

In contrast to the simplicity of these results it should be mentioned that in some way the crystal structure of reduced hemoglobin is different. Attempts to convert crystals of acid methemoglobin into reduced hemoglobin and crystals of reduced hemoglobin into oxyhemoglobin are always accompanied by a complete break up of the original crystal structure and recrystallization in a new form occurs (Haurowitz, 24). It is not yet established whether these differences are only important in considering the structures of the crystals or whether they are reflected in the reactions of these compounds in solution. 

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