Cation–π versus anion–π interactions: A theoretical NMR study
作者： Ali Ebrahimi , Mostafa Habibi Khorassani , Hamid Reza Masoodi
DOI: 10.1016/J.CPLETT.2011.01.067
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摘要: Abstract The influences of cation–π and anion–π interactions on NMR data have been investigated in complexes cations anions with 1,3,5-trifluorobenzene (TFB). Cation–π interaction increases 1 J C–F , C–H the chemical shifts hydrogen fluorine while it decreases C–C . changes are reverse direction presence interaction. role geometry electronic effects was considered. distance dependence parameters has studied these complexes. isoelectronic
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