中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Beyond the Limits of X-ray Powder Diffraction: Description of the Nonperiodic Subnetworks in Aluminophosphate-Cloverite by NMR Crystallography

文献类型:期刊论文

作者Martineau, Charlotte1; Bouchevreau, Boris1; Tian, Zhijian2; Lohmeier, Sven-Jare3; Behrens, Peter3; Taulelle, Francis1
刊名chemistry of materials
出版日期2011-11-08
卷号23期号:21页码:4799-4809
关键词NMR crystallography generalized crystallography cloverite fluorinated aluminophosphate high-resolution NMR 2D correlation
ISSN号待补充
产权排序2,3
通讯作者martineau ; charlotte
中文摘要beyond the limits of x-ray powder diffraction: description of the nonperiodic subnetworks in aluminophosphate-cloverite by nmr crystallography
英文摘要nmr crystallography of the fluorinated aluminophosphate cloverite is presented, with an emphasis on the description of the nonperiodic part of the compound, i.e., the fluorine and organic subnetworks, which are very difficult to access by usual x-ray powder diffraction methods. multinuclear high-resolution 1d al-27 and p-31 nmr support the main cloverite-type topological features previously proposed for aluminum cloverite from powder x-ray diffraction. spatial proximities are extracted from the 2d p-31-p-31 and al-27-p-31 nmr spectra, allowing a full assignment of the p-31 and al-27 resonances to the corresponding phosphorus and aluminum sites in the structure. to go further into the description of the main periodic framework, c-13, n-15, and h-1 1d and h-1-h-1 and h-1-p-31 2d nmr measurements are employed, allowing the characterization and selective locations of the two costructural-directing agents in the pores and channels of the framework. the nonperiodic fluorine subnetwork is described by means of f-19-x (x = al-27 and p-31) 2d nmr experiments. two kinds of fluorine atoms are distinguished: f- ions trapped in d4r units and f atoms covalently bonded to terminal al or p atoms and which interrupt the alpo network. through the example of aluminum cloverite, we show that, despite the considerable complexity of such systems, an extremely detailed structural model can be obtained, including the simple rules that allow the description of the nonperiodic subnetworks that tailor the structure and properties of a compound, by coupling powder x-ray diffraction and high-resolution nmr data in a generalized crystallography approach.
WOS标题词science & technology ; physical sciences ; technology
学科主题物理化学
类目[WOS]chemistry, physical ; materials science, multidisciplinary
研究领域[WOS]chemistry ; materials science
关键词[WOS]gallophosphate molecular-sieve ; crystalline inorganic solids ; nuclear-magnetic-resonance ; integer quadrupolar nuclei ; mas nmr ; generalized crystallography ; spin locking ; magic-angle ; hetcor nmr ; resolution
收录类别SCI
语种英语
WOS记录号WOS:000296304100023
公开日期2012-07-09
源URL[http://159.226.238.44/handle/321008/115722]  
专题大连化学物理研究所_中国科学院大连化学物理研究所
作者单位1.Univ Versailles, CNRS, Tectospin Inst Lavoisier Versailles, UMR 8180, F-78035 Versailles, France
2.Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, State Key Lab Catalysis, Dalian 116023, Peoples R China
3.Leibniz Univ Hannover, Inst Anorgan Chem, D-30167 Hannover, Germany
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GB/T 7714
Martineau, Charlotte,Bouchevreau, Boris,Tian, Zhijian,et al. Beyond the Limits of X-ray Powder Diffraction: Description of the Nonperiodic Subnetworks in Aluminophosphate-Cloverite by NMR Crystallography[J]. chemistry of materials,2011,23(21):4799-4809.
APA Martineau, Charlotte,Bouchevreau, Boris,Tian, Zhijian,Lohmeier, Sven-Jare,Behrens, Peter,&Taulelle, Francis.(2011).Beyond the Limits of X-ray Powder Diffraction: Description of the Nonperiodic Subnetworks in Aluminophosphate-Cloverite by NMR Crystallography.chemistry of materials,23(21),4799-4809.
MLA Martineau, Charlotte,et al."Beyond the Limits of X-ray Powder Diffraction: Description of the Nonperiodic Subnetworks in Aluminophosphate-Cloverite by NMR Crystallography".chemistry of materials 23.21(2011):4799-4809.

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来源:大连化学物理研究所

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