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Originally posted by jinkai838 at 2010-06-28 21:34:54:
A relation exists between the T-O-T bond angles and the acid strength of the
associated proton in the zeolites (11). The greater the angle, the stronger the sites.Thus, the protonic sites of HMOR  ...

Excellent explanation! Actually, T-O-T angle determines the proton donating ability and thus the strength of acid sites.
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