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Synthesis, characterization, and amine intercalation behavior of zirconium N-(phosphonomethyl)iminodiacetic acid layered compounds
Zhang, BL; Poojary, DM; Clearfield, A; Peng, GZ
1996-06-01
发表期刊CHEMISTRY OF MATERIALS
卷号8期号:6页码:1333-1340
文章类型Article
摘要New types of zirconium layered compounds containing the N-(phosphonomethyl)iminodiacetic acid group (PMIDAH(2)) have been synthesized and characterized. A mixed phosphate/ phosphonate compound, Zr-2(PO4)(O3PCH2N{CH2COOH}(2))(O3PCH2N{CH2-COO-})(H2O)(2) (I) was obtained when a mixture of phosphoric acid adn diacetatoiminophosphonic acid (H(2)PMIDAH(2)) solution in the ratio of 1:1 was heated with the zirconyl chloride in the presence of HF. The layer structure of this compound is different from that of any known layered zirconium phosphonate compounds. The bridging of metal atoms by the phosphate groups within the layer is similar to that found in gamma-ZrP, while the mode of phosphonate binding is similar to that found for alpha-ZrP. When the above reaction was carried out with additional phosphoric acid, a similar layered structure but with composition Zr-2(PO4)(O3PC5H7O4N)(O3PC5H8O4N)(x)(HPO4)(1-x)(H2O)(2) (II) was obtained. In this compound some of the phosphonate groups are replaced by the HPO42- groups. When the ratio of phosphoric acid to H(2)PMIDAH(2) was 4, the compound obtained has the maximum replacement. The value of x for this compound in the above formula is 0.5. Further addition of phosphonic acid yields a new phase with composition Zr(O3PC5H8O4N)(x)(HPO4)(1-x), (III). P-31 solid-state MAS NMR and XRD patterns suggest that this new phase is structurally similar to alpha-ZrP. Intercalation reactions with primary alkylamines, CnH2n+1NH2 (n = 3-8), were carried out with all these phases. The results show that 2 mol of amines were taken up by compound I to form [Zr-2(Po-4)(PMIDAH(2))(PMIDAH)(H2O)(2)]. 2RNH(2), while 1.5 mol of amine was intercalated into compound III, forming Zr(PMIDAH(2))(x)(HPO4)(1-x). 1.5RNH(2). In both compounds the amines appear to pack as double layers. The ion-exchange behavior of these compounds is also discussed.
WOS标题词Science & Technology ; Physical Sciences ; Technology
关键词[WOS]ION-EXCHANGE ; CRYSTAL-STRUCTURE ; PHOSPHATE ; PHOSPHONATES
收录类别SCI
语种英语
WOS研究方向Chemistry ; Materials Science
WOS类目Chemistry, Physical ; Materials Science, Multidisciplinary
WOS记录号WOS:A1996UQ79000027
引用统计
文献类型期刊论文
条目标识符http://ir.isl.ac.cn/handle/363002/6003
专题青海盐湖研究所知识仓储
作者单位1.TEXAS A&M UNIV,DEPT CHEM,COLLEGE STN,TX 77843
2.QINGHAI INST SALT LAKES,QINGHAI,PEOPLES R CHINA
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GB/T 7714
Zhang, BL,Poojary, DM,Clearfield, A,et al. Synthesis, characterization, and amine intercalation behavior of zirconium N-(phosphonomethyl)iminodiacetic acid layered compounds[J]. CHEMISTRY OF MATERIALS,1996,8(6):1333-1340.
APA Zhang, BL,Poojary, DM,Clearfield, A,&Peng, GZ.(1996).Synthesis, characterization, and amine intercalation behavior of zirconium N-(phosphonomethyl)iminodiacetic acid layered compounds.CHEMISTRY OF MATERIALS,8(6),1333-1340.
MLA Zhang, BL,et al."Synthesis, characterization, and amine intercalation behavior of zirconium N-(phosphonomethyl)iminodiacetic acid layered compounds".CHEMISTRY OF MATERIALS 8.6(1996):1333-1340.
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