Proton and Li+ polarizability of systems with intramolecular fluctuation of H+ or Li+ between four N or NO acceptors. An infrared-spectroscopic investigation of hydrogen and Li+ bonds
- 1 January 1985
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases
- Vol. 81 (10) , 2375-2380
- https://doi.org/10.1039/f19858102375
Abstract
Bases with four N or NO acceptor groups have been studied by infrared spectroscopy as free bases and H+ or Li+ monosalts in solution. The following compounds were investigated: 1,2-bis[2,2-bis(2-pyridyl)ethyl]benzene (compound 1) as HAuCl4 and LiClO4 monosalts, 1,2-bis[2,2-bis(dimethylamino)ethyl]benzene (compound 2) as LiClO4 monosalt and 1,2-bis[2,2-bis(2-pyridyl)ethyl]benzene tetra-N-oxide (compound 3) as LiClO4 monosalt. The proton fluctuates between the four N acceptors of the HAuCl4 monosalts of compound 1 and this motion causes large proton polarizability. All the N acceptors are influenced by the proton to the same extent. In the case of the LiClO4 monosalts of compounds 2 and 3, the Li+ ion fluctuates between the four NO acceptors causing large Li+ polarizability. In the case of the LiClO4 monosalt of compound 1 the Li+ ion fluctuates only between two N acceptors.Keywords
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