| 有机-无机杂化磷酸锆及胺插层化合物的MAS NMR 研究 |
| MAS NMR Study on Zirconium Phosphonate-phosphates and Their Amine-intercalated Compounds |
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| 摘要: |
| 关键词: 有机-无机杂化磷酸锆 胺插层化合物 MAS NMR |
| 基金项目: |
| Abstract: The layered zirconium [N-(phosphonomethyl)iminodiacetic acid-phosphate]
Zr(HPO4)1.34[O3PCH2N-(CH2CO2H)2]0.66·H2O can only be prepared in the series of the zirconium phosphonate-phosphates
Zr(HPO4)2-x[O3PCH2N(CH2CO2H)2]x·H2O (ZPPMIDA) by the reaction of zirconium oxychloride with phosphonic acid and
H2O3PCH2N(CH2CO2H)2 in the designed x range of 0 < x < 2, which had been monitored by using the phosphorus integration value ratio of
HPO42- and [O3PCH2N(CH2CO2H)2]2- group in the
31P MAS NMR spectra. After intercalation of n-butyl amine, the 31P chemical shift of
HPO42- group at -8.0~-10.0 ppm moved to 6.0 ppm with a change of 14.0~16.0 ppm and that of
[O3PCH2N(CH2CO2H)2]2- group at -29.1 ppm changed only 0.5 ppm. Due to the pillared effect of
[O3PCH2N(CH2CO2H)2]2- groups on the interlayer spacing, intercalated amines such as n-butylamine, n-hexyl amine and n-octyl amine easily reacted with
HPO42- group in ZPPMIDA (x=0.66) rather than that in α-ZrP, and carboxylic group
(-CO2H) in ZPPMIDA (x=0.66). |
| Keywords: zirconium phosphonate-phosphate amine-intercalated compound MAS NMR |
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| 马学兵,傅相锴,牛丽明,王宁.有机-无机杂化磷酸锆及胺插层化合物的MAS NMR 研究[J].无机化学学报,2006,22(1):111-114. |
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