Chemistry Letters, Vol.32, No.9, 864-865, 2003
1,2-bis[(4-phenylpyridinio)methyl]benzene dication. Its unprecedented selective complexation with H2PO4-
The anion complexation ability of 1,2-bis[(4-phenylpyridinio)methyl]benzene dichloride in MeCN was examined by UV-titration. The compound produced selectively the sufficiently strong H2PO4- complex in a 1:2 molar ratio. The presence of both of the 4-phenyl moieties was required for the H2PO4--selection. The X-ray crystallography of the complex structure is presented.