利用腙类化合物作为检测阴离子的敏感器

Hydrazone Compounds Used as Sensor for Detection of Anions

对四种分子内具有氢给体的电荷转移化合物与阴离子物种间的相互作用进行了研究 .发现含硝基的苯腙化合物 (2 )有优良的检测F-离子的能力 ,相反 ,含有羟基的苯腙化合物 (3 ) ,虽也能用于F-离子的检测 ,但其选择性较差 ,而对含氧阴离子H2 PO-4有一定的响应 .同时研究了另一含羟基的Schiff碱类化合物 (4 ) ,其对大多数阴离子的变色响应不够明显 ,选择性较差 .结合所观察到的实验现象 ,对实验结果进行了初步讨论 ,并对如何提高敏感器化合物的灵敏度和选择性提出了看法 .

The interaction between four compounds containing hydrogen bond donors and anionic species have been investigated. It is found that hydrazone (2) with a nitrogroup has excellent ability for the detection of fluoride anion. Although on the contrary, hydrazone (3) With hydroxy group can sense fluoride anion, its selectivity is poor, but it can detect the presence of dihydrogenphosphate anions. As for the Schiff base compound (4), it have no remarkable properties to be used as an anion sensor. The experimental results are discussed preliminary. Some consideration concerned to improve the sensitivity and selectivity of these compounds is suggested.