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How do metals enhance silanol activity?

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How do metals enhance silanol activity?

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Ricardinio
Can any one explain to me how do metals enhance silanol activity of silica-based stationary phases?

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tom jupille
Site Admin
Think of metal cations (postive charge) as pulling electron density back from adjacent silanol oxygens. This makes the silanol hydrogens more weakly bound. Result is a more acidic (lower pKa) silanol.
-- Tom Jupille
LC Resources / Separation Science Associates
tjupille@lcresources.com
+ 1 (925) 297-5374
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