Intercalation of n-alkylamines into mixed niobyl-vanadyl phosphate

Journal Article · Sun Jul 01 04:00:00 EDT 1990 · Journal of Solid State Chemistry; (USA)

DOI:https://doi.org/10.1016/0022-4596(90)90060-B· OSTI ID:6330739

Garcia-Ponce, A L; Moreno-Real, L; Lopez, A J ^[1]

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1. Universidad de Malaga (Spain)

Niobyl-vanadyl phosphate (V{sub 0.14}Nb{sub 0.86})OPO{sub 4}2.7 H{sub 2}O (NbVP) intercalates n-alkylamine molecules to yield stable layered compounds with high basal spacings and compositions close to 1.7 mole of amine and 2 mole of water per mole of phosphate. The x-ray diffraction, differential thermal analysis, thermogravimetry, and IR and diffuse reflectance spectroscopy (UV-vis-nIR) techniques allow them to establish that the amine molecules are protonated in the interlayer space, where the R-NH{sub 3}{sup +} groups interact with the layers via hydrogen bonds. These amines form a molecular bilayer inclined at 58{degree} with respect to the phosphate layers.

• OSTI ID: 6330739
• Journal Information: Journal of Solid State Chemistry; (USA), Journal Name: Journal of Solid State Chemistry; (USA) Vol. 87:1; ISSN JSSCB; ISSN 0022-4596
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
COHERENT SCATTERING
DATA
DIFFRACTION
ELEMENTS
EXPERIMENTAL DATA
INFORMATION
MEASURING INSTRUMENTS
MEASURING METHODS
METALS
NIOBIUM COMPOUNDS
NIOBIUM PHOSPHATES
NUMERICAL DATA
OXYGEN COMPOUNDS
PHOSPHATES
PHOSPHORUS COMPOUNDS
REFRACTORY METAL COMPOUNDS
SCATTERING
STRUCTURAL CHEMICAL ANALYSIS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
VANADIUM
X-RAY DIFFRACTION