Hydrothermal synthesis and characterization of new hybrid open-framework indium phosphate-oxalates

2004 ◽  
Vol 49 (7) ◽  
pp. 658-664 ◽  
Author(s):  
Zhenxia Chen ◽  
Linhong Weng ◽  
Jinxi Chen ◽  
Dongyuan Zhao
Keyword(s):  
Hydrothermal Synthesis ◽  
Synthesis And Characterization ◽  
Open Framework

Novel Organically Templated Mixed-Valent Titanium Phosphates with Open Framework Structures: Hydrothermal Synthesis and Characterization

1998 ◽  
Vol 547 ◽  
Author(s):  
S. Ekambaram ◽  
Slavi C. Sevov
Keyword(s):  
Hydrothermal Synthesis ◽  
Preliminary Data ◽  
Magnetic Measurements ◽  
Spectroscopic Characterization ◽  
Synthesis And Characterization ◽  
Synthetic Approach ◽  
Formula Unit ◽  
Open Framework ◽  
Titanium Phosphates

AbstractWe have hydrothermally synthesized the first reduced titanium phosphates with open-framework structures. The synthetic approach is quite unusual since elemental titanium is used. The full structural, thermal, magnetic, and spectroscopic characterization of a 1,3-diaminopropanetemplated compound, TiIIITiIV(PO4)(HPO4)2(H2O)2·(NH2CH2CH2CH2NH2)0.5, is presented. The frame of the compound is of the octahedral/tetrahedral type with octahedrally coordinated TiIII and TiIV atoms. The template of 1,3-diaminopropane occupies channels with dimensions that are comparable to those of many zeolites. Magnetic measurements are consistent with one d-electron per formula unit. TGA/DTA and IR data will be reported as well. This compound is most likely the first member of a larger class of reduced titanium phosphates. Some preliminary data suggests that similar reduced titanium phosphates with different templates and structures exist as well. All compounds are blue-purple due to Ti(III).

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