| Title | Crystallization of a Novel Germanosilicate ECNU-16 Provides Insights into the Space-Filling Effect on Zeolite Crystal Symmetry |
| Authors | Xu, Le Zhang, Lin Li, Jian Muraoka, Koki Peng, Fei Xu, Hao Lin, Cong Gao, Zihao Jiang, Jin-Gang Chaikittisilp, Watcharop Sun, Junliang Okubo, Tatsuya Wu, Peng |
| Affiliation | East China Normal Univ, Sch Chem & Mol Engn, Shanghai Key Lab Green Chem & Chem Proc, 3663 North Zhongshan Rd, Shanghai 200062, Peoples R China. Peking Univ, Coll Chem & Mol Engn, 5 Yiheyuan Rd, Beijing 100871, Peoples R China. Univ Tokyo, Dept Chem Syst Engn, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1138656, Japan. Stockholm Univ, Berzelii Ctr EXSELENT Porous Mat, S-10691 Stockholm, Sweden. East China Normal Univ, Sch Chem & Mol Engn, Shanghai Key Lab Green Chem & Chem Proc, 3663 North Zhongshan Rd, Shanghai 200062, Peoples R China. Sun, JL (reprint author), Peking Univ, Coll Chem & Mol Engn, 5 Yiheyuan Rd, Beijing 100871, Peoples R China. Sun, JL (reprint author), Stockholm Univ, Berzelii Ctr EXSELENT Porous Mat, S-10691 Stockholm, Sweden. |
| Keywords | electron crystallography molecular mechanics simulations novel topology structure-directing effect zeolite STRUCTURE-DIRECTING AGENTS MOLECULAR-SIEVE ELECTRON CRYSTALLOGRAPHY CATALYTIC-PROPERTIES POROUS MATERIALS FLUORIDE INTERGROWTH DIFFRACTION BETA SELECTIVITY |
| Issue Date | 2018 |
| Publisher | CHEMISTRY-A EUROPEAN JOURNAL |
| Citation | CHEMISTRY-A EUROPEAN JOURNAL. 2018, 24(37), 9247-9253. |
| Abstract | Synthesis of new zeolites involving organic molecules relies heavily on the trial-and-error approach, because it is difficult to interpret the determining effects of organics on zeolite crystal symmetry. Here, the intrinsic relationships among the space-filling of organics, included volume of channels, and zeolite crystal symmetry, are systematically demonstrated by experimental and computational means. Under controlled conditions, the dimer and "monomer" organics of 1-ethyl-3-methylimidazolium selectively direct different, but related, germanosilicates, the ECNU-16 with a new topology and the existing IM-16 with the UOS topology, respectively. The comprehensive computational study reveals that the zeolite phase selectivity is determined by the unique space-filling behavior of the dimer and monomer organics, which is closely correlated to their rotation freedom, as well as the included volume of host zeolite channels. The elucidation of this crucial space-filling effect from the fundamental viewpoint will provide new guidelines for the rational design and synthesis of new zeolites in future. |
| URI | http://hdl.handle.net/20.500.11897/513296 |
| ISSN | 0947-6539 |
| DOI | 10.1002/chem.201802087 |
| Indexed | SCI(E) EI PubMed |
| Appears in Collections: | å å¦ä¸ å å å·¥ç¨ å¦é ¢ |
