ゲルマニウム(IV)錯体のアニオノフォアとしての特性(<特集>若手研究者の初論文特集)

概要

論文の詳細を見る
A few germanium(IV) complexes were prepared and examined for the anionophore. A nitrilotriphenolato complex ([Ge_2(ntp)_2O]) with three coordinating phenolates around Ge(IV) showed a sub-Nernstian response (40 mV/decade) to fluoride in the range of 10^<-3>〜10^<-1>mol dm^<-3> as a carrier of ion-selective electrodes(ISEs). The dynamic range was extended to 10^<-4>〜10^<-1>mol dm^<-3> in the presence of cationic additives. Spectroscopic studies on the reaction of this complex with anions in dimethyl sulfoxide demonstrated the reaction stoichiometry of Ge(IV): A^- = 1:1 and the thermodynamic stability order of F^- > CH_3COO^- > H_2PO_4^-. The reaction selectivity agreed with that of potentiometry with ISEs. A bis(catecholato) complex with four phenolates showed no response to anions, and a bis(aminophenolato) complex with two phenolates was not stable enough in the reaction with anions.
社団法人日本分析化学会の論文
2004-09-05