0181517 - UFCH-W 20020257 RIV DE eng J - Journal Article
Vratislav, S. - Dlouhá, M. - Bosáček, Vladimír
Location of Chemisorbed Methylium Ions in Zeolites by Neutron Diffraction and 13C MAS NMR.
Applied Physics A - Materials Science & Processing. Roč. 74, Suppl. (2002), s. S1320-S1322. ISSN 0947-8396. E-ISSN 1432-0630
R&D Projects: GA ČR GA202/00/1427
Institutional research plan: CEZ:AV0Z4040901
Keywords : zeolites * neutron diffraction * chemisorbed methyl
Subject RIV: CF - Physical ; Theoretical Chemistry
Impact factor: 2.231, year: 2002

Methylium ions -CH3+ are chemisorbed at zeolitic basic sites - oxygen atoms. Oxygen O1 were found in NaY zeolite as favourable sites for location of bonded methyl groups. In NaY zeolite were estimated types O4 and O1 as most probable sites of location. Bonded methyl groups create bridging type of surface methoxy compounds and exhibit high rotational mobility in free zeolitic supercages.
Permanent Link: http://hdl.handle.net/11104/0001900