Metal ion complexation in acetonitrile by upper-rim allyl-substituted, di-ionized calix[4]arenes bearing two dansyl fluorophores
作者:Ümmühan Ocak、Miraç Ocak、Kazimierz Surowiec、Xiaodong Liu、Richard A. Bartsch
DOI:10.1016/j.tet.2009.06.038
日期:2009.8
of twodansyl (1-dimethylaminonaphthalene-5-sulfonyl) groups linked to the lower rims of a series of three, structurally related, di-ionizedcalix[4]arenes is investigated by means of absorption and emission spectrophotometry. Di(tetramethylammonium) salts of the di-ionized ligands, L, L1, and L2, which differ in having no, two and four allyl groups, respectively, on the upper rim of the calix[4]arene