The reaction heats and PM5 semiempirical studies of complexes formed between silicon podand and monovalent cations
作者:Bogusława Łęska、Piotr Przybylski、Joanna Wyrwał、Bogumił Brzezinski、Grzegorz Schroeder、Volodimir Rybachenko、Angelamaria Maia
DOI:10.1016/j.molstruc.2004.08.021
日期:2005.1
Silicon podands (1-10) were synthesised and their complexation reaction of Na+ cations were studied by calorimetric and PM5 theoretical methods. Both methods provide evidence for formation of the respective complexes with Na+ cations of different stoichiometry. In most cases, only formation of the complexes of 1:1 stoichiometry has been observed. For compounds with longer oxaalkyl chains (9 and 10) the formation of 1:4 and 1:6 complexes has been found. The structures of the complexes are visualised and discussed. (C) 2004 Elsevier B.V. All rights reserved.