Crystal structure of the new layer silicate RUB-39 and its topotactic   condensation to a microporous zeolite with framework type RRO

doi:10.1021/cm0706907

CORC > 北京大学 > 化学与分子工程学院

	Crystal structure of the new layer silicate RUB-39 and its topotactic condensation to a microporous zeolite with framework type RRO
	Wang, Y. X. ; Gies, H. ; Lin, J. H.
刊名	chemistry of materials
	2007
关键词	SOLID-STATE NMR FERRIERITE LAYERS PRECURSOR KANEMITE MCM-22
DOI	10.1021/cm0706907
英文摘要	The new synthetic hydrous layer silicate with code RUB-39, H-2[Si18O38]center dot 2(C8H20N)center dot xH(2)O, was synthesized from hydrothermal solution after 3 weeks at 150 degrees C and autogenous pressure. The material crystallized as a colorless, fine-grained powder of sub-micrometer crystallite size. The powder diagram was indexed in the monoclinic space group P2/c with a = 7.33122(5) angstrom, b = 10.72380(13) angstrom, c = 17.51354(12) angstrom, and beta = 115.69(6)degrees. The Rietveld refinement of the crystal structure was refined from laboratory powder X-ray diffraction data based on a structure model derived from the condensation product, zeolite RRO, with final residuals of R-wp = 12.3% and chi(2) = 3.1. The silicate layers of the new hydrous layer silicate are known as subunits of the silicate framework of the natural zeolite mineral heulandite and represent a basic construction principle of silicate framework structures. They are interconnected through strong interlayer hydrogen bonds. The remaining residual void space is filled with the organic template cation and hydrate water. The condensation process has been studied with solid-state NMR and differential thermal analysis/thermogravimetric analysis experiments. A mechanism for the condensation is proposed explaining the almost perfect crystallinity of the three-dimensional framework.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000248692500014&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Chemistry, Physical; Materials Science, Multidisciplinary; SCI(E); EI; 32; ARTICLE; 17; 4181-4188; 19
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/249841]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Wang, Y. X.,Gies, H.,Lin, J. H.. Crystal structure of the new layer silicate RUB-39 and its topotactic condensation to a microporous zeolite with framework type RRO[J]. chemistry of materials,2007.
APA	Wang, Y. X.,Gies, H.,&Lin, J. H..(2007).Crystal structure of the new layer silicate RUB-39 and its topotactic condensation to a microporous zeolite with framework type RRO.chemistry of materials.
MLA	Wang, Y. X.,et al."Crystal structure of the new layer silicate RUB-39 and its topotactic condensation to a microporous zeolite with framework type RRO".chemistry of materials (2007).