Organically Templated Mixed-Valent TiIII/TiIV Phosphate with an Octahedral- Tetrahedral Open Framework

Abstract

The first large-pore, mixed-valent titanium phosphate was hydrothermally synthesized by using elemental titanium as a starting material, and 1,3-diaminopropane as a template. The structure displays an open framework containing octahedrally coordinated Ti and Ti centers and tetrahedrally coordinated P centers; the diamine molecules are located within the zigzag channels (the picture shows a polyhedral representation of the structure).

DNA‐Mediated Synthesis of Microporous Single‐Crystal‐Like NaTi2(PO4)3 Nanospheres

“…A mixed‐valent Ti III /Ti IV phosphate with open‐framework structure was synthesized by using 1,3‐diaminopropane as a template 8. Layered titanium phosphate was synthesized by a surface‐displayed recombinant form of the enzyme silicatein‐ α at the exterior of bacterial cells 9. However, the controllable synthesis of metal phosphate nanostructures with crystalline frameworks is still very interesting and challenging.…”

Synthesis, structure and solid state NMR analysis of a new templated titanium(III/IV) fluorophosphate

“…A few three-dimensional titanium phosphates with an open structure were however discovered in the last decade [10]. More recently, several templated mixed valence three-dimensional titanium phosphates were evidenced using titanium metal as precursor, [11][12] while a series of templated titanium phosphates synthesised from nonaqueous media have also been reported [13].…”

Syntheses and Structures of Two Reduced Open-framework Titanophosphates

“…[24][25][26][27][28][29] The first templated microporous mixvalent Ti III Ti IV titanophosphate were reported by Sevov. 30 Of the known titanophosphate compounds, reduced materials are rare and interesting for catalytic, magnetic properties. Recently, two reduced titanium gallophosphates were synthesized, including a novel microporous phase possessing 10-MR channels and reversible oxidation state of Ti III species in these compounds.…”