CAJ | 학술논문

以五水硝酸铋、水杨酸、维生素B3为原料，摩尔比为1：2：1合成了一种新型的三元配合物．通过元素分析、摩尔电导、紫外光谱、红外光谱、热重与差热分析对其结构进行了表征，确定其分子式为[Bi（C7H5O3）2C6H4NO2（H2O）2]．2H2 O ．实验表明，水杨酸和烟酸均脱去羧基的质子形成羧酸根与Bi3＋离子双齿配位．根据TG -DSC曲线可以看出，当温度为81 oC时配合物开始分解，首先失去2个结晶H2 O ，接着失去2个水杨酸根，再失去1个烟酸根，最后残余物为Bi和Bi2 O3的混合物．
이오수초산필、수양산、유생소B3위원료，마이비위1：2：1합성료일충신형적삼원배합물．통과원소분석、마이전도、자외광보、홍외광보、열중여차열분석대기결구진행료표정，학정기분자식위[Bi（C7H5O3）2C6H4NO2（H2O）2]．2H2 O ．실험표명，수양산화연산균탈거최기적질자형성최산근여Bi3＋리자쌍치배위．근거TG -DSC곡선가이간출，당온도위81 oC시배합물개시분해，수선실거2개결정H2 O ，접착실거2개수양산근，재실거1개연산근，최후잔여물위Bi화Bi2 O3적혼합물．
A new product was synthetized from bismuth nitrate hexahydrate ,salicylic acid (C7 H6 O3 ) and nicotin-ic acid (C6 H5 NO2 ) .By means of elemental analysis ,molar conductance ,UV spectra ,IR spectra thermogravime-tric and differential thermal analysis ,we found that the composition of such compound is [Bi (C7 H5 O3 )2 C6 H4 NO2 (H2 O )2 ] .2H2 O (s ) .The experimental results showed that the ligands of salicylic acid and nicotinic acid were co-ordination an bidentate group with Bi3+ ion through an oxygen atom of its carboxylic group which was formed by removing the proton from the hydroxyl group .According to the curve of TG -DSC ,the compound began to decom-pose at 81℃ .Two mol water lost at first .Secondly ,2 mol C7 H5 O3 -disappeared .And then 1 mol C6 H4 NO2 -vanished .Finally ,the compostion of residue was Bismuth element and Bismuth oxide.