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DFT Reactivity Descriptors and Catalysis - Vrije Universiteit Brussel

DFT Reactivity Descriptors and Catalysis - Vrije Universiteit Brussel

DFT Reactivity Descriptors and Catalysis - Vrije Universiteit Brussel

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3.1 Br∅nsted Acid <strong>Catalysis</strong> by Zeolites –<br />

Methylation of benzene/toluene<br />

• Two – or single step proces → reaction profile<br />

• Rate constants<br />

• Influence of substituent<br />

• Interpretation within conceptual <strong>DFT</strong> context<br />

• 4T cluster model (1Al; 3 Si)<br />

• <strong>DFT</strong>: B3LYP<br />

rate constants<br />

reactivity descriptors<br />

Pag.<br />

30-9-2008 22

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