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The simultaneous intercalation of two or more n-alkylamines into R-titanium phosphate, Ti(HPO 4 ) 2 ‚H 2 O, has been investigated. The intercalation of large n-alkylamine molecules has been observed to be faster if there is a shorter alkyl chain amine, acting as a catalyst, yielding at completion single amine intercalates. New individual intercalation phases containing two different amines are obtained. In the case of a vapor mixture of several amines (C n H 2n+1 NH 2 , n ) 2-8), the compound obtained depends on the reaction time, providing selectivity. The morphology and crystallinity of the prepared materials are very sensitive to the preparation route. All synthesized phases showed monoclinic symmetry.

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