Ionophoric Properties of [14]Tetraazaannulene Derivatives and Substituent Effect on the Cation-selectivity

作者：Kawakami T M^*; Obita M; Tsujinaka T; Higashikado A; Moriuchi T

来源：Electroanalysis, 2017, 29(7): 1712-1720.

DOI：10.1002/elan.201700011

• [14]Tetraazaannulene
• Ion-selective electrode
• Substituent effect
• DFT calculation
• X-ray crystallographic analysis

[14]Tetraazaannulene derivatives 1-4 with various substituents were synthesized as ion recognition compounds. All solvent polymeric membrane electrodes incorporating [14]tetraazaannulene derivatives 1-4 showed rapid response for the Cu2+ ion and exhibited excellent selectivity over other mono- and divalent cations such as Ag+ and Ni2+ ions. The solvent polymeric membrane electrode based on [14]tetraazaannulene derivative 1 has a linear response to the Cu2+ ion from 5.01 x 10(-7) - 2.63 x 10(-4) M with a slope of 29.56 mV per decade. DFT calculations showed that the selectivities for the Cu2+ ion of the ISEs based on [14]tetraazaannulene derivatives 1-4 depended on both their topological and electrostatic properties caused by the introduced substituents.

• 出版日期2017-7