Synthesis of New n-Alkylamines Intercalation Compounds with α-Titanium Phosphate. Process Selectivity and Structural and Morphological Characterization

Abstract

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.

NADH electrooxidation using carbon paste electrodes modified with nitro-fluorenone derivatives immobilized on zirconium phosphate

“…The true nature of the interaction between these types of aromatic molecules and ZP is not known, but it has been proposed that layered phosphates like ZP are able to intercalate aromatic compounds [35,36]. In a number of investigations drastic spectral changes have been noticed for these kinds of compounds when intercalated into layered phosphates [35,[37][38][39][40][41][42][43][44][45][46]. It is thus obvious that there are strong interacting forces between the host material (ZP) and the guest molecules (such as Meldola Blue).…”

Electrochemical intercalation of lithium in the titanium hydrogeno phosphate Ti(HPO4)2·H2O

“…The acidic proton can be ion exchanged easily with mono or divalent cations such as Li + , Na + , K + , Ca 2+ , Pd 2+ and hence the compound is considered to 0378 [20][21][22][23]. In addition, the structure is amenable to intercalation of organic molecules such as alkyl diamines [24,25]. Although, several intercalation reactions of Ti(HPO 4 ) 2 ·H 2 O have been reported, to the best of our knowledge, the possible intercalation of Li into this compound has not been studied.…”

Calorimetric data on intercalation of some aromatic amines into barium phenylphosphonate at the solid/liquid interface

“…Several investigations on intercalation of a variety of amines, such as secondary, tertiary, cyclic, or arylic amines into phosphonate compounds have been reported [9][10][11]. These species are of interest not only in order to further clarity the chemistry of layered metal phosphonates but also because the process leads to the preparation and characterization of a new intercalated phase.…”