INTERCALATION OF N-ALKYLAMINES INTO MIXED NIOBYL-VANADYL PHOSPHATE

被引:16
作者
GARCIAPONCE, AL [1 ]
MORENOREAL, L [1 ]
LOPEZ, AJ [1 ]
机构
[1] UNIV MALAGA,FAC CIENCIAS,DEPT QUIM INORGAN,APARTADO 59,E-29071 MALAGA,SPAIN
关键词
D O I
10.1016/0022-4596(90)90060-B
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Niobyl-vanadyl phosphate (V0.14Nb0.86)OPO4.2.7 H2O (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 us to establish that the amine molecules are protonated in the interlayer space, where the RNH+3 groups interact with the layers via hydrogen bonds. These amines form a molecular bilayer inclined at 58° with respect to the phosphate layers. © 1990.
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收藏
页码:20 / 28
页数:9
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