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FIG. 5. Initial rate of formation of C3H6 vs relative abundance of
Mo (V). Mo (V) (Mo 3d5/2, BE 231.5 � 0.1 eV) refers to Mo (V) and ionic
Mo (IV). See the text for details.
7
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2
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ACKNOWLEDGMENT
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This work was partially supported by the Consejo de Desarrollo
Cient ´ı fico y Human ´ı stico (CDCH) through Grant 03.1447.83.
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