Dikationether, 6 [1] Spektroskopische Vergleiche von 9,9′-Oxy-bis(acridinium)- und 9,9′-Thio-bis(acridinium)-Salzen mit anderen 9-substituierten Acridinium-Ionen / Dication Ethers, 6 [1] Spectroscopic Comparisons of 9,9′-Oxy-bis(acridinium)- and 9,9′-Thio-bis(acridinium) Salts with Other 9-Substituted Acridinium Ions

Abstract

9,9′-Oxy-bis(acridinium) salts 2a and 2b as well as the 9,9′-thio-bis(acridinium) salt 2c have been compared with other 9-substituted acridinium salts by 1H NMR, 13C NMR, and UV/VIS spectra. The data show that the bond state of the acridine rings in 2a-c is quite similar to that in 9-(pseudo)halide-substituted acridinium ions, i.e., the aromatic conjugation throughout the heterocyclic system is not disturbed