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Rietveld refinement of a chabazite-like aluminophosphate containing a [Ni(1,2-diaminoethane)(2)O-2](2-) complex bridge
dc.creator | Meden, A | |
dc.creator | McCusker, LB | |
dc.creator | Baerlocher, C | |
dc.creator | Rajić, Nevenka | |
dc.creator | Kaučič, Venčeslav | |
dc.date.accessioned | 2021-03-10T09:57:08Z | |
dc.date.available | 2021-03-10T09:57:08Z | |
dc.date.issued | 2001 | |
dc.identifier.issn | 1387-1811 | |
dc.identifier.uri | http://TechnoRep.tmf.bg.ac.rs/handle/123456789/380 | |
dc.description.abstract | The crystal structure of a novel Ni-containing precursor to the molecular sieve AlPO4-34 (CHA framework type) has been determined in its as-synthesized form using high-resolution synchrotron powder diffraction data. One [Ni(1,2-diaminoethane)(2)O-2](2-) complex is found per chabazite-like cage in the triclinic unit cell Of C4H18N4NiAl6P6O26 (a = 9.0854(9) Angstrom, b = 9.3327(3) Angstrom, c = 8,936(1) Angstrom, alpha = 86.27(6)degrees, beta = 101.26(6)degrees, gamma = 92.72(5)degrees, P (1) over bar). Although the connectivity of the aluminophosphate framework is related to that of AlPO4-34, it is not identical because some P-O-Al bridges are broken. The Al atoms associated with this disruption of the connectivity form double Al-O-Al bridges and are five-coordinate, while the P atoms interact strongly with the Ni(II) complex ion to form an unusual P-O-Ni-O-P bridge across the chabazite cage. The triclinic deformation associated with these structural features disappears upon calcination, when the Ni(II) complex decomposes and the fully connected CHA framework type forms. | en |
dc.publisher | Elsevier, Amsterdam | |
dc.rights | restrictedAccess | |
dc.source | Microporous and Mesoporous Materials | |
dc.subject | AlPO4-34 precursors | en |
dc.subject | CHA framework type | en |
dc.subject | Ni(II) complex | en |
dc.subject | synchrotron powder diffraction | en |
dc.subject | Rietveld refinement | en |
dc.title | Rietveld refinement of a chabazite-like aluminophosphate containing a [Ni(1,2-diaminoethane)(2)O-2](2-) complex bridge | en |
dc.type | article | |
dc.rights.license | ARR | |
dc.citation.epage | 274 | |
dc.citation.issue | 2-3 | |
dc.citation.other | 47(2-3): 269-274 | |
dc.citation.rank | aM21 | |
dc.citation.spage | 269 | |
dc.citation.volume | 47 | |
dc.identifier.doi | 10.1016/S1387-1811(01)00386-9 | |
dc.identifier.scopus | 2-s2.0-0035477849 | |
dc.identifier.wos | 000171341700014 | |
dc.type.version | publishedVersion |