Complexes formed between (-)-sparteine, 2-methyl- and 2-oxosparteine and 2-cyano-2- methylsparteine with lithium perchlorate (LiClO4) were obtained in the solid state. The complexes, C15H26N2LiClO4, C16H28N2LiClO4, C15H24N2OLiClO4, and C17H27N3Li2Cl2O8 have been isolated and characterised by UV/vis, NMR, and IR, spectroscopy and by their mass spectra. Three of the four complexes present the 1:1 stoichiometry, while the 2-cyano-2-methylsparteine complex has the 1:2 stoichiometry.
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