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研發成果 >> New Research

 

A New Derivative Morphology for Pheophytin and Its Role in Enabling the Proton Conductive Path for Catalysis Reactions


Abstract:

A new derivative morphology of pheophytin was proposed and supported by spectral comparison and experimental verification. In short, when in the presence of an entering hydrogen gas molecule (or a proton pair, after their electrons were stripped by external means), a lower-energy structure of pheophytin existed wherein each nitrogen atom on its porphyrin ring was saturated with N–H bond. That is, the originally two double bonds associated with the two N atoms became single bonds, and all adjacent carbon atoms became carrying formal charge +1 and thus possessing only three bonds. Such a low-energy structure was found to constitute a general purpose proton traverse path, especially in a pheophytin-catalyzed hydrogen decomposition process.


 

 

A reasonable scenario to convert the entering hydrogen molecule and form the derivative morphology of pheo with 4 N-H bonds formed under the acidic chemical battery action, wherein yellow spots = electron lone pair, white = H, grey = C, blue = N, red = O, and numbers on atoms = formal charges. 1 Ha (Hartree) = 27.2116 eV.

 

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