Premium
Ionophoric Properties of [14]Tetraazaannulene Derivatives and Substituent Effect on the Cation‐selectivity
Author(s) -
Kawakami T. M.,
Obita M.,
Tsujinaka T.,
Higashikado A.,
Moriuchi T.
Publication year - 2017
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.201700011
Subject(s) - substituent , selectivity , chemistry , medicinal chemistry , organic chemistry , catalysis
[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 Cu 2+ ion and exhibited excellent selectivity over other mono‐ and divalent cations such as Ag + and Ni 2+ ions. The solvent polymeric membrane electrode based on [14]tetraazaannulene derivative 1 has a linear response to the Cu 2+ ion from 5.01 × 10 −7 – 2.63 × 10 −4 M with a slope of 29.56 mV per decade. DFT calculations showed that the selectivities for the Cu 2+ ion of the ISEs based on [14]tetraazaannulene derivatives 1–4 depended on both their topological and electrostatic properties caused by the introduced substituents.