Interactions of different heterocyclic compounds with monoionic forms of montmorillonite |
| |
| Authors: | E Jóna G Rudinská M Sapietová V Pavlík M Drábik S C Mojumdar |
| |
| Institution: | 1.Department of Chemistry and Technology of Inorganic Materials, Faculty of Industrial Technologies,Tren?ín University of Alexander Dub?ek in Tren?ín,Púchov,Slovak Republic;2.Institute of Inorganic Chemistry,Slovak Academy of Sciences,Bratislava,Slovak Republic;3.Dept. of Chemical Engineering,University of Waterloo,Waterloo,Canada;4.University of New Brunswick,Saint John,Canada;5.Centre for Biocomposites and Biomaterials Processing, Faculty of Forestry,University of Toronto,Toronto,Canada |
| |
| Abstract: | Interactions of 3-R-and 2-R pyridine (R=CH3, Cl, NH2) with Ni(II)-exchanged montmorillonite have been studied. Thermal and X-ray analyses indicate that pyridine derivatives are intercalated into the interlayer spaces of montmorillonite. Infrared spectral data shown that the Lewis and/or Brönsted type of interactions of pyridine derivatives is connected with different steric and inductive effects of the substituents (R) on the pyridine ring. The alkylpyridines increase the electron density on the donor nitrogen atom and support the coordination to the central atom. The halogen substituents have a negative inductive effect (–I), so that those ligands show a lower basicity and weaker σ-bonding properties than pyridine and also the lower possibility of the coordination. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
